A distributed segmented dynamic decoupling support system for near-space altitude construction and a running control method thereof
By employing a dynamic suspension damping array, radial impedance gradient, and confined coupling interface in the near-space height support system, combined with global deviation monitoring, the system instability problem caused by disturbance energy propagation in existing technologies has been solved, achieving dynamic stability and controllability of the system and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-06-12
Smart Images

Figure CN122190363A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the fields of near-space engineering, super high-rise / cluster platform structures and system dynamics control, and in particular to a near-space height support system and its operation control method that achieves localization of disturbance energy through structural domain division and restricted coupling.
[0002] Terms and Definitions To avoid ambiguity, the term "structural segment domain / structural segment unit / segment dynamic domain" in this paper refers to the structural connection segment divided along the height direction or horizontal range, in which a local dynamic envelope can be established and support / compensation nodes and control parameters can be independently configured; where "topology" is used to emphasize the engineering significance of the connection configuration and boundary conditions, and is not the homeomorphic invariant of mathematical topology.
[0003] (2) “Segmented dynamic decoupling” refers to the suppression of cross-domain energy transfer in the target frequency band by designing the impedance / damping of the restricted coupling interface and releasing the degree of freedom, thereby realizing segmented dynamic decoupling and localization of disturbance energy.
[0004] (3) “Residual load R_i” refers to the net load after deducting the support / compensation F_i from the equivalent load G_i of the structural segment domain. In general implementation, the net load borne by the bottom or anchorage bearing path is the sum of the residual loads of each domain ΣR_i. However, since α_i can be close to 1 and cross-domain accumulation is suppressed, ΣR_i is significantly smaller than ΣG_i of traditional continuous structures.
[0005] (4) "Outer peripheral energy dissipation zone" refers to the outer structural zone that allows for large stroke displacement and prioritizes the dissipation of environmental input kinetic energy; "core functional zone" refers to the central structural zone that maintains micro-displacement and steady-state service functions through the isolation of the restricted coupling interface.
[0006] (5) "Radial impedance gradient" refers to the radial direction defined in any horizontal section of the system with the geometric centroid as the reference point, along the line connecting the centroid to the outer perimeter (for non-circular sections, the direction of the shortest distance from the centroid to the boundary or the local outward normal direction can be taken); "mechanical impedance" Z(ω) is defined as the frequency domain force-velocity ratio Z(ω)=F(ω) / V(ω), which can be characterized by the equivalent stiffness k_eq and the equivalent damping c_eq in engineering implementation, approximately Z(ω)≈k_eq / (jω)+c_eq, and the impedance gradient from the core area to the outer perimeter area can be realized by setting graded parameters or adjustable damping elements.
[0007] (6) "Coupling interface geometric invariant I" refers to the set of geometric parameters that the restricted coupling interface (200) needs to maintain in order to achieve restricted motion and band-stop suppression, including but not limited to the coupling window size, limit geometry, relative position of joint axes, pre-tension reference length and its allowable drift range; the stability of I is used to support the geometric window W(t) and the impedance / damping adjustment strategy to remain consistent under temperature difference, aging and load disturbance. (7) "Synchronization bus / time synchronization mechanism (570)" refers to the communication and synchronization link used to achieve key state synchronization and timestamp consistency maintenance between the global monitoring unit (550) and the edge control unit (540); it can be implemented by wired bus, wireless synchronization link, periodic status broadcast or a combination thereof, and is not limited to a specific physical medium or network protocol. Background Technology
[0008] Near-space height-supported and continuously occupied systems typically face multi-scale dynamic instability issues caused by wind disturbances, structural flexibility, and the coupling of mooring loads. Traditional solutions often rely on overall rigidity enhancement or a single control loop to suppress sway. However, under conditions of increased height, broader external disturbance spectrum, nonlinearity of connectors, and sensing delays, disturbance energy may propagate along the height direction and undergo phase locking and tension cascade amplification, leading to system-level instability. Therefore, an engineering solution is needed that limits energy propagation paths at the system connectivity level and can identify global deviation amplification trends in advance. Insufficient existing technology
[0009] Existing solutions in engineering often adopt a single-layer approach of "overall rigidity enhancement + local vibration reduction." On the one hand, the overall rigid path leads to nonlinear amplification of internal forces and displacement responses as the height increases, and it is difficult to cover the disturbance input of broadband, non-stationary wind fields. On the other hand, segmented vibration reduction or single-point damping often lacks the constraint of connection relationships in cross-domain energy propagation paths, and is prone to phase locking and tension cascading under conditions of nonlinearity of connectors, time delay, and parameter drift. In addition, existing solutions usually couple monitoring and execution in the same closed loop, which may lead to blind spots of "local compliance but global positive feedback acceleration." Therefore, a highly supported solution is needed that restricts energy propagation at the connection relationship level and has independent global monitoring and modular maintenance and upgrade capabilities.
[0010] In the field of super high-rise buildings and high-altitude moored / stayed platforms, existing technologies mainly advance along two paths: one is to pursue high stiffness and high strength in the overall main structure, supplemented by single-point vibration reduction such as tuned mass dampers and viscous dampers; the other is to use fixed cables, fixed dampers, or constant aerodynamic configurations in moored / floating platforms to resist wind-induced loads. These solutions often assume that disturbance statistics are approximately stationary or that the control loop is single, making it difficult to simultaneously cover wind speed profiles varying with height, broadband vortex-induced vibrations, and local failure conditions. Furthermore, the lack of controllable constraints on the "cross-domain energy propagation path" in the structural connection links makes it easy for hidden instability to occur where local indicators comply while the global energy envelope continues to rise. In addition, fixed-configuration damping or aerodynamic components still introduce additional self-weight and static drag at low wind speeds, increasing fatigue accumulation and maintenance costs. Existing monitoring mostly focuses on local displacement / acceleration thresholds or single-loop feedback, lacking independent monitoring and early degradation triggering mechanisms for the global instability symptom of "amplified velocity."
[0011] Compared with the above-mentioned prior art, the present invention binds the following three elements into an inseparable synergistic combination to suppress instability from the input side, the propagation side and the monitoring side simultaneously: (1) Dynamic deployment of suspension damping array: the deployment height / length / density of suspension ropes is adjusted according to height in the peripheral energy dissipation area and as needed to realize the aerodynamic dissipation layer of "densification when needed and storage in normal times", avoiding the windless self-weight and fatigue caused by fixed damping; (2) Radial impedance gradient and restricted coupling interface: through the radial gradient of the peripheral low impedance large stroke and the core high impedance micro-amplitude vibration, and forming a band-resistance / high-resistance band at the inter-domain interface, the peripheral large displacement energy can be gradually attenuated in the process of propagation to the core, and a stable core functional island is constructed; (3) Global deviation amplification speed monitoring: independently define and monitor the global energy / deviation index E_global and its amplification speed g(t), and form a safety loop in parallel with the edge control, which can identify the early signs of "local stability but global instability" and trigger the degradation safety mode.
[0012] The above combination enables the pendant array to adaptively dissipate the environmental input power, the radial impedance gradient to constrain the cross-domain propagation path, and the global amplification speed monitoring to provide early warning and trigger degradation, thus significantly differentiating it from single-point vibration reduction or fixed mooring solutions.
[0013] Furthermore, at near-space altitudes (e.g., approximately 12–25 km), air density decreases significantly (by one to two orders of magnitude less than at sea level), making traditional buoyancy and aerodynamic control efficiencies, which rely on atmospheric density, prone to decline with altitude. However, wind speeds and wind shear are often stronger at these altitudes, leading to a significant increase in disturbance input power and broadband random excitation. Therefore, a single "overall rigid wind resistance" or "buoyancy support" scheme cannot simultaneously address both high-wind disturbances and low-density environments, necessitating a segmentable, replaceable, and degradable dynamic management architecture.
[0014] In the near-space implementation, the confined coupling interface (200), key load-bearing components, and aerodynamic module skeleton preferably adopt a composite material system with high modulus, low coefficient of thermal expansion, and resistance to ultraviolet radiation / fatigue, such as carbon fiber reinforced composite material, aramid fiber composite material, etc.; and try to maintain the material identity or matching of thermal expansion coefficients across segmented domains to reduce geometric drift caused by temperature difference and ultraviolet aging, so that the geometric invariant I and geometric window W(t) of the coupling interface remain stable under temperature difference disturbance.
[0015] [Comparison of Existing Technologies] In existing technologies, super high-rise buildings typically employ an integral rigid system such as a core tube-outrigger / outer frame, combined with tuned mass dampers (TMD) or active mass dampers (AMD) to suppress wind vibration; tethered air balloons / airship platforms mostly achieve static support through a single buoyant body and a small number of tethering cables; in the aerospace field, drag chute, towed decoy, or towed dampers are often used to increase drag or stabilize attitude of single-unit aircraft; flexible robots and aerospace docking vibration isolation platforms focus on local six-degree-of-freedom isolation. The above solutions are mostly effective in a single dimension of "support," "damping," and "vibration isolation," but lack an irremovable synergy for ultra-high-scale disturbances: namely, "dynamically deployed suspension array + radial impedance gradient peripheral energy dissipation + global deviation amplification velocity monitoring" as a closed-loop mechanism, combined with a replaceable structural domain of segmented gravity compensation. This invention uses structural segmentation domains as basic units, quantifies and closes the constraints on residual load, lateral energy transfer and global positive feedback risk, thereby achieving scale expansion and maintainable operation without relying on overall rigid wind resistance.
[0016] Difference (1): Compared with overall rigid wind resistance and single-point TMD vibration suppression, the present invention allows controlled tilt / displacement and localizes and dissipates disturbances in stages through a restricted coupling interface and radial impedance gradient.
[0017] Difference (2): Compared with the overall mooring of a single-system floating platform, the present invention establishes segmented domains along the height and sets up replaceable restricted coupling interfaces, which reduces the tension accumulation slope and allows maintenance to be completed in the local domain.
[0018] Difference (3): Compared with fixed towing / rope damping, the suspended array of the present invention can be stored and dynamically deployed according to the wind spectrum density, and the degradation strategy is triggered by the global deviation amplification speed g(t), forming a closed-loop safety of structure-control coordination. Summary of the Invention
[0019] To address the aforementioned issues, this invention proposes a distributed segmented dynamic decoupling support system and its operation control method. The system divides the target height range into multiple structural segment domains. Within each segment domain, support / compensation node units fully or partially close off local loads (limiting residual loads), and confined coupling interfaces are set at the boundaries of adjacent segment domains, enabling band-stop / high-stop band suppression of cross-domain energy transfer in the frequency domain. Simultaneously, a global deviation amplification speed monitoring unit, independent of local edge control, monitors global deviation indicators and their amplification speed based on low-frequency summaries. When a system-level positive feedback trend appears, safety actions are triggered in advance, thereby achieving dynamic stability without relying on overall rigid stability.
[0020] To avoid concerns about the "excessive scope of engineering scenarios" during review, the application scenarios can be divided into two categories at the implementation level, with feasible engineering paths provided for each: (A) Near-space tethered / floating platforms (e.g., approximately 15–25 km): The compensation ratio α_i is mainly provided by buoyancy and / or aerodynamic lift, used for segmented closure and energy management of the tether cable's self-weight, wind shear, and broad-spectrum disturbances; in this case, the engineering implementation of large unfolded area, ultra-lightweight materials, and segmented replaceable maintenance should be emphasized. (B) Super high-rise buildings / towers (e.g., approximately 20–1500 m): The compensation ratio α_i can be provided by internal active support mechanisms, component prestressing, and / or aerodynamic surfaces, used to reduce the bottom stress peak and suppress vortex-induced vibration and tension cascading; both scenarios share the connection relationship and control logic of "segmented decoupling + constrained coupling + global monitoring," but the specific parameter selection and structural dimensions can be set separately.
[0021] In a preferred security implementation, the global monitoring unit (550) employs an irreversible triggering strategy for g(t) based on tiered thresholds and holding times: when g(t) exceeds the first-level threshold g1, the edge control unit (540) prioritizes increasing (220) the equivalent damping, deploying (420) or increasing (210) the tension to increase dissipation without altering the normal geometric window logic; when g(t) exceeds the second-level threshold g2 and the duration Δt exceeds a preset value, the system is forcibly locked into a degraded security state (Figure 4, State B), and remains locked until manual maintenance or a reset command is issued to avoid frequent round-trip switching under random wind fields. The global monitoring unit (550) and the edge control unit (540) can maintain state consistency through a synchronization bus (570) (e.g., a distributed clock / timestamp / low-frequency state summary channel) to support stable calculation and consistent triggering of g(t).
[0022] Unlike traditional rigid load-bearing structures, this invention employs a combination of "segmented support / compensation + restricted coupling interface resistance suppression + independent global monitoring" to make the overall structure behave as a controlled flexible body. This allows each segmented domain to swing in a controlled manner within its local dynamic envelope, and suppresses cross-domain accumulation through interface dissipation and degree-of-freedom release. Simultaneously, nodes and interfaces can adopt a modular and detachable design to support parallel assembly, maintenance, replacement, recycling, redeployment, and upgrades, thereby reducing the overall engineering cost and maintenance risks of ultra-high-rise structures.
[0023] Furthermore, in some embodiments, this system adopts a two-dimensional distributed decoupling topology of "longitudinal load dissipation - transverse impedance gradient": In the longitudinal dimension, each structural segment domain balances or partially closes the segment load in situ through support / compensation node units, thereby significantly reducing the cumulative slope / gain of gravity load along the height direction; the net load borne by the bottom or anchorage bearing path is generally the sum of the residual loads R_i of each domain, ΣR_i, and ΣR_i can be kept within a preset threshold range by increasing the compensation ratio α_i, segment isolation and dissipation; In the transverse dimension, a radial dynamic barrier with non-uniform damping / impedance distribution is constructed in the horizontal section, and a low-impedance, large-displacement peripheral energy dissipation zone is set on the periphery to withstand large flexible tilting / swinging and dissipate environmental input kinetic energy in advance, and a high-impedance, micro-displacement core functional zone is set in the center, and the peripheral kinetic energy is gradually attenuated during the transmission to the core through the nonlinear adjustment of the restricted coupling interface, forming a collaborative mechanism of "external flexible motion envelope and internal stable functional island". Among them, the support / compensation node unit (330) can be a ring-shaped continuous arrangement, a circumferentially distributed or symmetrically distributed multiple node units in the horizontal section. The two sides or multiple points shown in Figure 2 are only used to express "circumferential distribution" and do not constitute a limitation on the quantity and position.
[0024] Furthermore, in some embodiments, the system includes a dual-layer attitude coordination control mechanism of "geometric alignment - internal leveling": an active prestress adjustment unit (220) and a counter-tensioning cable (210) are set in the restricted coupling interface (200) or core functional area (310), which adjusts the tension components in all directions in real time according to the global deviation index E_global and geometric window constraints to form an equivalent restoring force and restoring moment pointing towards the central axis, so that the geometric center of the structure is kept within the preset safety envelope while allowing tilt unloading; a local leveling platform (340) is set in the core functional area, which is connected to the support structure through a multi-degree-of-freedom decoupling support or parallel actuator (341), and combined with a gravity vector sensor (510) for closed-loop control to reverse compensate for the tilt angle θ of the structure, so that the load platform maintains an approximately horizontal gravity reference plane, thereby improving the continuity and usability of the operation.
[0025] In a minimum feasible closed-loop implementation, the edge control unit (540) takes the tilt / azimuth angle, interlayer relative displacement, cable force / actuator stroke, etc. collected by the sensor group (510) as inputs to form attitude and alignment errors; then, according to the preset tension distribution relationship, the errors are mapped to the target tension / equivalent damping commands for the flexible limiting tension cable (210) and the active / semi-active damping actuator (220), and the commands are limited in amplitude and rate; when a power supply / communication abnormality, actuator saturation, or global deviation amplification speed g(t) exceeds the threshold is detected, the system enters the degradation mode, converges the cable force to the preset safe tension and reduces the control gain, and locks the interface or triggers winding / unwinding if necessary to avoid entanglement and cascading failure.
[0026] Furthermore, in some embodiments, the system is configured with a passively-based, dynamically adjustable suspension damping array in the peripheral energy dissipation zone (Figure 4): The suspension damping array (420) includes a retractable array of damping ropes (421) and a deployment / retraction mechanism (423), which can be deployed as needed in the "resonance sensitive layer / strong wind shear layer" according to the wind speed profile, wind direction and disturbance spectrum of different height layers, and forms a local aerodynamic shield and dissipation zone by adjusting the rope suspension length L(z) and spatial distribution density ρ_s(z); under low wind or over-limit conditions, the ropes can be retracted into the peripheral skin storage cavity (424) to reduce static resistance and fatigue load. In a passive deployment example, the deployment mechanism can adopt a combination of locking release and wind load self-extension, and the end of the rope can be equipped with a counterweight and an electromagnetic limiting device (422) to change the array characteristic frequency and achieve inter-layer locking when necessary.
[0027] During the transition from state A (aerodynamic lift / rotation mode) to state B (suspension damping deployment mode) as shown in Figure 4, aerodynamic drag, controllable stall and / or regenerative braking can be used to decelerate the controlled rotating shell (410) until its rotational speed is reduced to below the preset safety threshold ω_safe. Then, the lock is released and the suspension damping array (420 / 421) is deployed to reduce the coupling transmission of inertial counter-torque to the core structure and the restricted coupling interface (200) and avoid the risk of entanglement.
[0028] Furthermore, in some embodiments, the peripheral energy dissipation strip (320) or gravity compensation node unit can integrate an external aerodynamic functional module (400), which generates a vertical auxiliary lift ΔF_L under the action of horizontal flow through an aerodynamic lift conversion shell (410) and / or an asymmetric aerodynamic shape, as a dynamic increment for distributed support / compensation; the ΔF_L can be adaptively adjusted by adjusting the aerodynamic surface pitch angle and / or rotational angular velocity ω; in order to suppress the global angular momentum and torsional coupling introduced by rotation, a reverse rotation layout can be adopted, so that the rotation directions of adjacent layers or symmetrical modules are opposite, so as to achieve the anti-pinning of angular momentum and driving torque within the structural topology, thereby improving wind resistance and energy management capabilities while avoiding overall torsional instability.
[0029] Furthermore, in some implementations, to improve safety in extreme wind fields and failure modes, the system is equipped with failure protection and degradation safety strategies: when a power outage, communication interruption, sensor failure, or actuator unavailability occurs, the active adjustment function is preferably deactivated and locked to a safe position, and the aerodynamic lift conversion shell (410) returns to a neutral attitude and stops rotating through the locking / limiting mechanism (413); at the same time, the suspension damping array (420) enters the default deployment or minimum protection configuration, so that the structure degrades to a stable mode dominated by nonlinear damping, passive dissipation, and stroke limit; the global deviation amplification speed monitoring unit (550) can further trigger actions such as interface impedance upper limit increase, segmented isolation, and kinetic energy lockout to ensure that the system still meets the safety window and stability boundary in the failure state.
[0030] Furthermore, the distributed topology of the present invention is not limited to a single building. Multiple structural segmentation domain modules or multiple systems (100) can be connected in the horizontal and / or vertical directions through confined coupling interfaces (200) to form a near-space cluster platform or a platformized urban base; and hierarchical impedance control and isolation zones can be adopted to achieve disturbance isolation and cooperative stability between energy capture / industrial areas and residential / precision functional areas within the same topology network (exemplary, not limiting).
[0031] Example 13: Space Operation Platform and Impact Management (Optional) In some implementations, the cluster platform system can be configured with a space operation area for spacecraft transfer, assembly, refueling, launch, or recovery. To prevent the propagation of transient impact loads introduced by the operation to the core functional area, the operation area can be located in the outer energy dissipation zone (320) or the edge of the cluster, and form an "impact dissipation-segmented isolation" path through the confined coupling interface (200) and the suspended damping array (420). The control unit can trigger pre-compensation within a preset time window before the operation: transiently increase the compensation output of the support / compensation node unit (330), increase the interface pre-tensioning, or activate the aerodynamic lift module (400) to offset the peak downpressure; and after the operation, gradually exit the high drag zone and drag-increasing state according to the monitoring results, so that the structural response remains within the stroke and moment margin range.
[0032] Example 12: Near-space Cluster Platform and Information / Energy Synchronization (Optional) Multiple systems (100) or multiple structural segment domain modules can be connected in parallel in the horizontal and / or vertical directions through a confined coupling interface (200) to form a cluster platform system. The cluster platform can be laid out according to functional zones (residential / precision functional zone, transportation / logistics zone, energy capture zone, etc.), and vibration isolation zones can be established between different functional zones through a hierarchical impedance control strategy. Preferably, in addition to mechanical connection, the confined coupling interface also serves as an energy and data exchange node, configured with power buses and communication links; and achieves state consistency maintenance of global monitoring (550) and edge control (540) through a synchronization bus (570) and redundant clock / timestamp mechanism, thereby supporting low-latency calculation and safe command distribution of E_global and g(t).
[0033] Example 11: Typical Parameter Example (Non-limiting) Taking a super-high structure with a height H≈1000~1500m as an example: the structure is divided into n=8~15 segmented domains along the height direction, with a single domain height Δh=100~200m; the core functional area diameter D_core=40~100m, and the peripheral energy dissipation bandwidth W_ring=15~80m. The compensation ratio α_i can be configured segmentally according to height and wind vibration sensitivity (for example, a higher α_i is taken for the upper segment to reduce the residual load peak and dynamic accumulation), and the residual load constraint R_i<= σ is satisfied. The above values are only used to illustrate the parameter magnitude and configuration ideas and do not constitute a limitation of the present invention.
[0034] Example 10: Deployment, Switching, and Anti-Tangle of Suspended Damping Array (Optional) As shown in Figure 4, the outer peripheral energy dissipation strip (320) can be equipped with a suspended damping array (420), including a damping rope array (421), an end counterweight (422), a dynamic response deployment mechanism (423), and a storage cavity (424). To cover a wideband random wind field and reduce the coherent oscillation of the array, it is preferable to configure the suspension length, diameter, and counterweight spectrum in a non-uniform distribution to form a wideband equivalent energy dissipation characteristic. To avoid the counter-torque impact when switching from state A (rotational lift) to state B (suspended damping), it is preferable to first decelerate by aerodynamic drag and / or regenerative braking during the switching process, and then release the lock and deploy the suspended damping array after the rotational speed drops to a safe threshold. In the event of power failure, communication interruption, or sensor malfunction, the deployment mechanism (423) can be configured to default to a safe state with a preset minimum protection density, so that the system degenerates into a pure passive dissipation mode while still having a stable boundary. To reduce the risk of entanglement, the rope array can achieve spatial isolation and spin untangling through guide isolation components, layered staggered lengths, and rotary joints; when abnormal rope spacing or sudden tension changes are detected, it is preferable to execute a recovery and untangling sequence, and if necessary, to quickly detach the faulty rope to avoid the fault from being transformed into an adverse load on the main structure.
[0035] Example 9: Aerodynamic Lift Conversion, Attitude Torque Compensation, and Torque Counterbalancing (Optional) As shown in Figure 4, the support / compensation node unit (330) can integrate an external aerodynamic functional module (400), which converts horizontal wind energy into vertical auxiliary lift ΔF_L through an aerodynamic lift conversion shell (410) and / or an asymmetric aerodynamic structure. ΔF_L can be adaptively adjusted by adjusting the rotational angular velocity ω and / or the aerodynamic surface pitch (angle of attack). To avoid the overall torsion and angular momentum accumulation introduced by controlled rotation, a reverse rotation layout can be adopted and symmetrically configured through a rotational drive mechanism (412) to achieve counterbalancing of angular momentum and driving torque; when the wind direction changes or the counterbalancing efficiency decreases, compensation can be achieved through aerodynamic control surfaces / attitude control surfaces and / or reaction torque actuators, and some torsional loads can be released by a degree-of-freedom release structure (230) to maintain controllable attitude boundaries. The housing and drive mechanism may be equipped with a rotation locking / limiting mechanism (413) to stop the rotation and return to a safe position in the event of excessive wind field, abnormal vibration or failure.
[0036] The explicit causal correspondence between the technical effects and the accompanying drawings (examination-friendly explanation) The technical effects of this invention are not "drawn from the drawings", but are derived from the clear structural relationships and control chains: (i) Since the restricted coupling interface (200) shown in Figure 3 adopts the combination of "flexible limiting tension cable (210) + parallel damping actuator (220) + (optional) degree of freedom release structure (230)", the adjacent segmented domains can move relative to each other within the geometric window under normal working conditions to achieve tilt unloading, while when the limit is exceeded or the command is triggered, the equivalent impedance can be quickly increased and the cross-domain energy propagation can be suppressed, thereby reducing cascade amplification; (ii) Since the radial impedance gradient (outer flexible and inner rigid) between the outer peripheral energy dissipation band (320) and the core functional area (310) shown in Figure 2, high frequency / large amplitude disturbances are preferentially dissipated in the large deformation and damping of the outer periphery, and the core area maintains a small displacement and attitude disturbance; (iii) Since Figure 5 The global monitoring unit (550) shown is independent of the edge closed loop. The global monitoring unit (550) does not participate in the local high-frequency closed loop control. It only performs trend judgment and strategy triggering based on the low-frequency summary with consistent timestamps. It obtains the low-frequency summary through the synchronization bus (570) and generates graded resistance increase / locking commands, so that the system upgrades from "state over-limit alarm" to "trend over-limit warning". When E_global is still controllable, it suppresses the energy accumulation caused by g(t) being continuously positive in advance. (iv) Minimum technical effect fallback: Even without enabling the graded trend triggering strategy, the cumulative slope of load and disturbance in the height direction can be reduced and the net load peak of the bottom / anchor bearing path can be reduced by simply designing the topology of the structural segment domain (110) and the confined coupling interface (200). Detailed Implementation
[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the following embodiments are only used to explain the technical concept and engineering implementation path of the present invention, and do not constitute a limitation on the scope of protection; those skilled in the art can make equivalent substitutions for the structural form, parameter range and control strategy without departing from the spirit and substance defined by the claims.
[0038] Example 1: The overall system structure and segmented load reduction are shown in Figure 1. The system (100) is divided into multiple structural segment domains (110i) along the height direction. Each structural segment domain is equipped with support / compensation node units (330) to balance or partially close the gravity load of the height segment in situ. By setting the compensation ratio α_i=F_i / G_i (0<α_i<=1), the net load borne by the bottom or anchorage bearing path is composed of the sum of the residual loads R_i=G_i F_i of each domain, ΣR_i, thereby suppressing the linear cumulative gain of the load in the height direction. Adjacent structural segment domains are connected by a restricted coupling interface (200) (see Figure 3), so that adjacent segment domains generate restricted relative motion within a preset geometric window to achieve tilt unloading, and when the limit is exceeded or the command is triggered, the coupling impedance is increased or locked by increasing the tension (210) and / or increasing the equivalent damping (220). In near-space (e.g., 15-25km) conditions, to avoid the misconception that "small volume generates large lift in low-density environments," it is preferable to specify in the embodiments that: when α_i approaches 1, support / compensation usually relies on large-area, lightweight, deployable structures (such as large airbags / wing surfaces / rotating lift shells, etc.); in ultra-high-rise / tower conditions, α_i can be less than 1, with the main load-bearing system bearing the residual static load, and the segmented domain and confined coupling interface focusing on wind vibration isolation and peak energy reduction.
[0039] Example 2: Multi-cable load-bearing, adjustable tension, and degree-of-freedom release at a confined coupling interface. In one optional implementation, the confined coupling interface (200) includes opposing flexible limiting tension cables (210) and parallel active / semi-active damping actuators (220) (see Figure 3). The flexible limiting tension cables (210) may include inclined steel cables and / or distributed axial steel cables arranged along the central axis, achieving a multi-objective trade-off of "anti-slackening-limiting-load-bearing" through adjustable pretension; the damping actuators (220) are used to output variable equivalent damping force and attitude correction force. To reduce the linear accumulation of torsional loads or overall phase synchronization, a degree-of-freedom release structure (230) (e.g., joint supports and limiting mechanisms that allow controlled yaw / slip) can be set within the interface, and quickly locked to a safe angle window in case of over-limit or failure. Preferably, the interface anchorage and force transmission path are limited to the vicinity of the boundary of adjacent segment domains to avoid energy bypassing across multiple structural segment domains.
[0040] Example 3: High-stopband / band-stop control and decoupling frequency threshold edge control unit (540) and central control unit (500) receive state summaries such as displacement, velocity, and tension provided by sensor group (510) and perform spectrum estimation on the dominant disturbance frequency f_dist. The piecewise dynamic decoupling frequency threshold f_threshold is calculated based on the mapping between environmental disturbance parameters and structural characteristic parameters, and f_threshold usually corresponds to the equivalent cutoff frequency / band-stop boundary frequency of the confined coupling interface (200) or its neighborhood. When f_dist is within or exceeds the preset neighborhood of f_threshold, the control unit adjusts (210) pre-tensioning and / or (220) equivalent damping so that the interface energy transfer function exhibits high-stopband / band-stop characteristics in the corresponding frequency band (see the control loop in Figure 5 and the interface structure in Figure 3), thereby suppressing the cross-domain propagation and accumulation of disturbance energy.
[0041] Example 4: A two-stage degradation triggering system with energy balance criteria and global monitoring constrains global evolution with energy balance criteria, ensuring that the dissipated power P_out is not less than the equivalent input power P_in (see energy criterion unit 520 in Figure 5). The global monitoring unit (550) calculates the global deviation index E_global and the global deviation amplification speed g(t)=dE_global / dt based on the low-frequency summary, and sets a first-level threshold g1 and a second-level threshold g2 (g2>g1): When g(t)>g1, a resistance increase / dissipation increase command is triggered to improve the equivalent damping of the confined coupling interface (200) and / or the suspended damping array (420); when g(t)>g2 and the duration Δt exceeds the preset value, it is forcibly locked into a degradation safety state (state B in Figure 4), and remains locked until a reset command is received or manual maintenance is performed to avoid frequent back-and-forth switching under random wind fields. The global monitoring unit (550) and the edge control unit (540) can maintain information consistency through a synchronization bus (570) (e.g., a distributed clock / timestamp / low-frequency status summary channel) to support stable calculation of g(t) and rapid issuance of security actions.
[0042] Optional Supplement: Coupling Window Constraints for External Input Power P_anchor (Consistency Description) In scenarios requiring active traction, energy injection, or anchor-side power input, an external input power P_anchor can be introduced, and the injection period can be limited by a coupling window W(t). Simultaneously, the upper limit of the injected power P_max and the upper limit of the power slope (dP_anchor / dt)_max are constrained to match the response bandwidth of the impedance regulation of the constrained coupling interface (200), thereby preventing the external input from becoming a new source of instability. This constraint can be uniformly issued by the central control unit (500) or the global monitoring unit (550), and the edge control unit (540) can execute the limiting, rate limiting, and degradation strategies (see Figure 5 and necessary calculation descriptions).
[0043] Example 5: Pneumatic module mode switching and safe release of rotational inertial energy. In a preferred implementation, such as... Figure 4 As shown, the external aerodynamic functional module (400) has a lift mode (state A) and a suspension damping mode (state B). In state A, the aerodynamic lift conversion shell (410) operates at an angular velocity ω under the action of the rotation drive mechanism (412) to generate auxiliary lift ΔF_L, and ΔF_L can be adaptively adjusted by adjusting the aerodynamic surface pitch angle and / or ω; in state B, the rotation is stopped or significantly reduced and the deployment / retraction mechanism (423) is unlocked, so that the suspension damping array (421) unfolds under the action of gravity to provide broadband dissipation. To avoid the risk of reverse torque impact or rope entanglement caused by the rotational inertial energy during the instant of switching from state A to state B, it is preferable to adopt the "decelerate first, release rope later" sequence during the switching process: first, the outer shell (410) is decelerated by reverse deflection of the pneumatic surface (e.g., reverse deflection of the pitch to introduce pneumatic braking) and / or electromagnetic braking / regenerative braking (which can be integrated into the rotational locking / limiting mechanism (413) or drive mechanism (412)). After the rotational speed drops to the safe threshold ω_safe, the locking is released and the damping rope array (421) is allowed to unfold. If necessary, the deployment / retraction mechanism (423) limits the release speed and adopts an anti-entanglement guide structure. When an entanglement trend or tension over-limit is detected, segmented recovery, tripping, or discarding actions are triggered to maintain the stability of the restricted coupling interface (200) and the core area.
[0044] Example 6: Environmental Adaptability and Material Selection (Near Space) For environments such as strong ultraviolet radiation at an altitude of 20km, low temperature (e.g. -50℃), and temperature difference cycling, in a preferred implementation, the flexible limiting tension cable (210) can be made of ultra-high molecular weight polyethylene (UHMWPE) fiber cable, PBO fiber cable, aramid fiber cable, or their composite laminate structure, and adopts UV-resistant coating, wear-resistant sheath and low-friction surface treatment to reduce geometric window drift caused by fatigue, creep and wear; the main structure of the key load-bearing components of adjacent segment domains and the restricted coupling interface (200) can preferably be made of composite materials with high modulus and low thermal expansion coefficient (e.g. carbon fiber composite material or aramid composite material), and through material identity / thermal expansion matching and prestress compensation strategy, the geometric invariant I of the coupling interface (e.g. geometric window, centering error envelope and limiting reference) remains stable under temperature difference disturbance, thereby improving long-term maintainability and practicality.
[0045] Example 7: Distributed Computing Power Allocation and Centralized Takeover in Extreme Cases To demonstrate the feasibility of the "distributed computing power allocation" described in claim 10, in a preferred implementation, the edge control unit (540) assumes local closed-loop and rapid response under normal operating conditions. The global monitoring unit (550) receives low-frequency state summaries and timestamp consistency information of each segment domain through the synchronization bus (570), calculates E_global and g(t), and issues hierarchical instructions. When an abnormality in g(t) is detected (e.g., exceeding the secondary threshold and lasting Δt) or when insufficient computing power / communication abnormality occurs in the edge unit, the global monitoring unit (550) can take over the key operators or control law parameters (e.g., limiters, allocation matrices, damping gain scheduling tables) of the edge unit (540) through the synchronization bus (570), and uniformly issue locking / damping / recovery strategies in a centralized and forceful manner; at the same time, the edge unit retains the minimum passive safety loop (e.g., pre-tensioned safety value and mechanical limit), forming a two-state safety system of "distributed priority - extreme centralized takeover".
[0046] Example 8: Simplified Comparative Example and Technical Effect Binding (Trend, Reproducibility) To address the concern that "the technical effect cannot be directly derived from the example," a comparative logic that does not rely on large-scale data is provided. Taking two segmented domains (110, 120) and a restricted coupling interface (200) as an example: Under the same wind spectrum disturbance input (e.g., the neighborhood of the main frequency component close to f_threshold), the (A) scheme of the present invention and the (B) comparative example scheme are run respectively. (A) Scheme of the present invention: The edge control unit (540) adjusts the pre-tension (210) and equivalent damping (220) according to the structure in Figure 3 in the local closed loop; the global monitoring unit (550) calculates E_global and g(t) according to the process in Figure 5. When g(t)>g1, the resistance is increased first. When g(t)>g2 and continues for Δt, the system is forcibly locked into state B in Figure 4. (B) Comparative scheme: Maintain the same mechanical structure but turn off global trend triggering (do not calculate or use g(t) hierarchical strategy), and only rely on local over-limit alarm to passively enter state B; or fix (220) as constant damping and do not schedule with disturbance frequency band. Observable indicators include at least: inter-layer relative displacement peak x_rel,max, geometric window over-limit times N_exceed, global energy envelope E_global growth slope and trigger time t_B to enter degenerate state B. Under typical operating conditions, (A) can keep x_rel,max within the preset geometric window or only have short-term boundary touch, and g(t) triggering moves t_B forward to avoid E_global from continuously increasing positively; (B) is more likely to have an over-limit process of "accumulation first and then sudden" (for example, E_global maintains an upward trend for a long time, eventually leading to a significant increase in N_exceed and triggering cascade amplification). The above comparison is not intended to limit the present invention, but only to illustrate that the restricted coupling structure in Figure 3 and the trend monitoring closed loop in Figure 5 can produce directly observable differences at the implementation level, thereby supporting the stability and security effects described in the specification.
[0047] Necessary calculation instructions (a) Parameter and variable definition (exemplary) 1) Equivalent parameters of the structural segment domain i: equivalent mass m_i, equivalent stiffness k_i, and equivalent damping c_i within the domain.
[0048] 2) The relative displacement x_rel,j and relative velocity v_rel,j=dx_rel,j / dt of the confined coupling interface j; the equivalent damping coefficient c_eq,j; and the equivalent mechanical impedance Z_j(ω).
[0049] 3) Disturbance frequency: f_dist is obtained by performing spectral analysis on the displacement / tension signal.
[0050] 4) Segmented dynamic decoupling frequency threshold: f_threshold, used to define the frequency band that "needs to enter the high stopband / band-stop suppression".
[0051] 5) Global deviation index: E_global and its amplification speed g(t)=dE_global / dt; holding time Δt; first-level threshold g1 and second-level threshold g2 (g2>g1).
[0052] 5a) An exemplary definition of E_global (for the purpose of full disclosure, not as a limitation): the low-frequency displacement / velocity / tension residuals of each segmented domain can be used to construct a weighted energy envelope, for example, E_global = Σ_i (w_x *<x_i,lp^2> +w_v *<v_i,lp^2> + w_r *<R_i,lp^2> ), where <.> represents the mean square or variance within the sliding window Δt, (·)_lp represents the low-pass filter component, and w_x, w_v, and w_r are the weights. Accordingly, g(t)=dE_global / dt can be implemented using discrete differences, and first-order inertial smoothing can be introduced to reduce noise triggering.
[0053] 6) Power and Energy: Environmental equivalent input power P_env, external input power P_anchor (optional), power dissipation P_out, and system equivalent energy E.
[0054] 7) Load and support / compensation: Equivalent load G_i, local support / compensation force F_i, compensation ratio α_i=F_i / G_i (0<α_i<=1) of structural segment i, and residual load R_i=G_i F_i (which can be borne by the lower load-bearing member / reference bearing path).
[0055] 8) Residual load threshold: σ (optionally, a residual load change rate threshold ρ can also be set to limit abrupt changes in residual load).
[0056] (ii) Explanation of the feasible calculation of f_threshold (one of the necessary calculations) To avoid "overall phase locking / energy cross-domain cascading", each structural segment can be approximated as a single-degree-of-freedom equivalent model (example), with the following natural frequencies: f_n,i = (1 / (2π)) * sqrt(k_i / m_i).
[0057] Recommended: f_threshold = min_i ( α * f_n,i), where α is the safety margin coefficient (example: 0.6~0.9), used to enter the band-stop state in advance before approaching resonance.
[0058] In a more refined implementation, α can be determined based on the main peak of the wind spectrum, the upper limit of the inter-domain coupling transfer rate T_max, and the sensing / execution delay, or the band-stop boundary frequency that satisfies T(ω)<=T_max can be directly solved.
[0059] (III) Engineering implementation of band-resistance / high-resistance band reconfiguration (necessary calculation II) When f_dist enters the neighborhood of f_threshold (e.g., 0.9 f_threshold ~ 1.1 f_threshold), the edge control unit adjusts the interface damping or impedance to reduce the interface transmissivity.
[0060] Equivalent transferability of base excitation (example): T(ω) = sqrt( (1+(2 ζ r)^2) / ((1-r^2)^2 + (2 ζ r)^2) ), Where r = ω / ω_n, and ζ is the equivalent damping ratio. Increasing ζ or increasing the equivalent interface impedance Z_j(ω) can significantly reduce the transmission rate near r ≈ 1, thereby forming "high-resistance band / band-stop" suppression.
[0061] Engineering implementation can be achieved by: increasing c_eq,j (such as MR damping or hydraulic throttling), introducing nonlinear damping terms (n>=2), and weakening torsional coupling in the degree-of-freedom release structure.
[0062] (iv) Feasible calculation of energy balance criterion (the third necessary calculation) The system's equivalent energy E can be represented by a weighted sum of low-frequency displacement and tension deviation within the domain (example): E = Σ_i ( w_x * x_i,lp^2 + w_ σ * σ_i,lp^2 ), Where x_i,lp and σ_i,lp are the displacement / tension deviations after low-pass filtering, and w_x and w_σ are the weights.
[0063] The equivalent input power can be written as P_in = P_env + P_anchor (if there is no external input, then P_anchor = 0).
[0064] Calculation of interface power dissipation (example): P_out ≈ Σ_j ( c_eq,j * v_rel,j^2 ) + other energy-consuming terms, The mean value is taken within the sliding time window Δt to suppress noise.
[0065] The control objective is to maintain P_out >= P_in within a continuous time window, allowing local controlled oscillations while suppressing cross-domain accumulation.
[0066] (V) Calculation and triggering of global deviation amplification speed monitoring g(t) (necessary calculation 4) The global deviation index E_global can be: E_global = Σ_i ( w1 * Var(x_i,lp) + w2 * Var(σ_i,lp) ), Where Var(.) represents the variance or mean square value within the window.
[0067] Amplification speed can be achieved using discrete difference: g(t_k) = (E_global(t_k) - E_global(t_{k-1})) / (t_k - t_{k-1}).
[0068] The triggering logic uses a tiered threshold: when g(t) > g1, it triggers an "increased resistance / increased dissipation" action (such as increasing the upper limit of the interface equivalent damping and impedance, increasing the nonlinear damping coefficient, lowering f_threshold, or densifying the deployment of the suspension damping array, etc.) to suppress the trend acceleration.
[0069] When g(t) > g2 (g2 > g1) and the duration >= Δt, the "irreversible degradation lock" action is triggered: the system is forcibly locked into state B in Figure 4 and remains locked until a reset command is received or manual maintenance is performed to release the lock; at the same time, the domain that contributes the most can be subjected to amplitude limiting / kinetic energy locking and segmented isolation to block the cascading instability path.
[0070] The monitoring unit is independent of the edge control, avoiding the blind spot of "each part being compliant but the whole being accelerating with positive feedback" in local closed loops.
[0071] (vi) Exemplary order of magnitude verification (not constituting a limitation) Taking the equivalent parameters of a segmented domain of a certain structure as an example: m_i=200 kg, k_i=800 N / m, then f_n,i ≈0.318Hz; taking α=0.8, then f_threshold ≈0.254 Hz.
[0072] Adjusting the interface damping increases ζ from 0.05 to 0.25, which can significantly reduce the transmission rate near r≈1 and suppress the cross-domain propagation of disturbances.
[0073] The above is only used to illustrate the computational path and order-of-magnitude check, and does not constitute a limitation on the claims.
[0074] (vii) Verification path for the order of magnitude of buoyancy / lift (optional but commonly used) If a node uses a buoyant body to provide static compensation, its net buoyancy can be estimated using the following formula: F_b = (ρ_air - ρ_gas) * g * V, Where ρ_air is the air density at the node's height, ρ_gas is the density of the filling gas (e.g., helium / hydrogen), and V is the gasbag volume.
[0075] For a given target compensation force F_b,target, the required volume can be calculated by inverse calculation: V >= F_b,target / (( ρ_air - ρ_gas) * g).
[0076] In engineering implementation, buoyancy, aerodynamic lift, and propulsion can be combined to reduce the rigidity requirements on the volume of a single buoyant body.
[0077] (viii) Estimation path for wind load and equivalent input power P_env (optional but feasible) Given the equivalent windward area A, drag coefficient C_d, and relative wind speed v_w of a certain structural segment, the average wind load can be estimated: F_w ≈ 0.5 * ρ_air * C_d * A * v_w^2.
[0078] The equivalent input power of the work done by wind load on the system can be calculated as follows: P_env ≈ F_w * v_rel,lp Where v_rel,lp represents the low-frequency component of the relative velocity in this domain (or the root mean square velocity within the window). This estimation is used for the "order-of-magnitude consistency" check and control threshold selection of the energy criterion.
[0079] (ix) Necessary Calculation Path for Wind-Resistant Tilt Adaptation (corresponding to Example 2) 1) Wind Load and Wind Load Moment Estimation: Based on the equivalent windward area A, drag coefficient C_d, and relative wind speed v_w of the interface module, the wind load F_w≈0.5*ρ_air*C_d*A*v_w^2 can be estimated; and the wind load moment M_w≈F_w*h can be estimated by taking the lever arm h. 2) Gravity Restoring Moment and Equilibrium Tilt Angle: The interface module and its equivalent center of gravity are simplified into a pendulum model. Taking the equivalent pendulum arm l and the equivalent mass m, the gravity restoring moment M_g≈m*g*l*sinθ. Under quasi-static equilibrium conditions, m*g*l*sinθ≈M_w can be taken, and θ is constrained by the stroke / safety limit angle θ_max. 3) Mechanical expression of retractable / damped cable (example): For a single cable (210a), F_k = k_s*ΔL + c_s*d(ΔL) / dt can be taken, or a nonlinear damping term can be introduced to improve the energy dissipation capacity under large disturbances; when multiple cables are connected in parallel, the directional stiffness and directional impedance can be achieved by adjusting the ΔL of each cable. 4) Consistency with energy criterion: The potential energy change during the tilting process can be checked according to the order of magnitude of ΔU≈m*g*l*(1 cosθ), and the additional input energy can be dissipated within the window Δt by increasing c_s or increasing the interface impedance to maintain the control target of P_out>=P_in.
[0080] (X) Magnitude and Constraints of Wind Energy Harvesting Power Supply at Nodes (Optional) In some implementations, wind energy harvesting devices can be configured at gravity compensation nodes or interface modules to supply power for sensing, communication, and damping. The available power can be estimated as P_w≈0.5*ρ_air*A_rotor*C_p*v_w^3, where A_rotor is the swept area and C_p is the power coefficient. It should be noted that the wind energy harvesting device generates a reaction force (equivalent additional resistance) on the incoming flow, the magnitude of which can be approximated as F_react≈P_w / v_w. Therefore, in engineering implementation, this should be factored into P_env or the equivalent load model, and designed in conjunction with constrained coupling interface impedance adjustment, travel limits, and safety window logic to avoid increased structural loads or the introduction of new instability sources due to energy harvesting.
[0081] (XI) Static load path and control constraints for all / partial support (α_i) scenarios (necessary calculation supplement) 1) For the structural segment domain i, the local support / compensation force F_i can be taken as all or part of the equivalent load G_i, and α_i = F_i / G_i is defined. The residual load R_i = G_i - F_i can be borne by the lower bearing member / reference bearing path. In engineering, it is further possible to constrain the peak value of R_i not to exceed the structural allowable value R_allow,i, and optionally to constrain its rate of change |dR_i / dt| <= ρ to avoid the low-frequency coupling amplification caused by the sudden change of the residual load. 2) In applications such as ultra-high structures / super high-rise buildings, α_i < 1 can be selected to retain the static load path of the main bearing system, and the segmented domain and restricted coupling interface can be used to suppress cross-domain propagation, reduce the dynamic cumulative gain and internal force peaks; the value range of α_i can be jointly determined by the structural safety reserve, wind spectrum and target vibration reduction index (the values are only examples and do not constitute limitations). 3) In the energy criterion and monitoring calculation, P_in mainly reflects the dynamic energy injection of environmental disturbances and external inputs; the residual static load is not used as an input item for P_env, but the part of the change in R_i(t) caused by attitude change / extension adjustment can be incorporated into the check item of the low-frequency deviation index or equivalent input power to maintain the consistency of the criterion.
[0082] (XII) Variation of air density with height and buoyancy check supplement (optional) When checking the order of magnitude of buoyancy / lift, the air density can be written as a function of height ρ_air(h). In engineering, an exponential approximation can be used: ρ_air(h) = ρ_0 * exp(h / H), where ρ_0 is the air density at the ground surface and H is the atmospheric scale height (example magnitude is about 8 km). Accordingly, the buoyancy formula can be written as F_b(h) = (ρ_air(h) - ρ_gas) * g * V, so as to conduct consistency checks on V or α_i in different height sections.
[0083] (XIII) Sensing / execution delay and suppression of small disturbance dead zone (optional but recommended) In wide-spectrum wind disturbances and multi-level control, there are finite delays τ_s, τ_c, τ_a in sensing, communication and execution. To avoid fatigue accumulation caused by frequent actions under high frequency or small disturbances, dead zones and rate limits can be set for control and triggering: for example, when |g(t)| < g2,low or |v_rel,lp| < v_th, maintain the minimum damping baseline; when entering the warning range, gradually adjust the interface impedance / damping according to the slope upper limit (dZ / dt)_max or (dc / dt)_max to match the effective bandwidth of the system.
[0084] (XIV) Bearing check and decoupling process of modular quick-release / recovery interface (optional) For modular quick-release mechanical interfaces, strength and fatigue checks can be performed based on peak load and torque: F_allow>=γ*F_peak, M_allow>=γ*M_peak (γ is the safety factor). Before disassembly / recovery, it is preferable to reduce the residual load at the target interface to below R_release by increasing the interface impedance and using unloading strategies, and complete the quick-release decoupling within the safety window; at the same time, the transient deviation caused by decoupling is included in E_global and g(t) monitoring to avoid the recovery action itself becoming a new source of instability.
[0085] (XV) Necessary Calculation Supplements for Transverse Impedance Gradient (External Flexibility, Internal Stability) Design (Optional) 1) Radial Impedance Distribution in Horizontal Section: Within the horizontal section of any structural segment, introduce radial coordinates r∈[0,R], and write the equivalent impedance as Z(r,ω)=k(r) / (jω)+c(r) (example). We can assume that the peripheral energy dissipation zone r∈[R1,R] satisfies a lower stiffness k_out and a larger allowable stroke x_max,out, while the core functional zone r∈[0,R0] satisfies a higher impedance Z_core and a smaller allowable displacement x_max,core.
[0086] 2) Gradient attenuation and transmissivity constraints: The lateral transmissivity from the periphery to the core can be defined as T_r(ω) = |X_core(ω)| / |X_out(ω)|, and T_r(ω) <= T_r,max within the target frequency band can be achieved through graded damping / impedance configuration (example). In engineering, multi-ring graded configuration (j=1…K) can be used to approximately satisfy Π_j T_j(ω) <= T_r,max.
[0087] 3) Consistency of power / energy constraints: The dissipated power P_out,periph≈Σ c_j*v_j^2 (example) in the peripheral energy consumption zone should preferentially cover the main components of the environmental input power P_env, so that the residual power P_core entering the core zone satisfies P_core<=η*P_env (η is the preset attenuation coefficient), thereby maintaining the small displacement of the core zone while satisfying the global energy criterion.
[0088] (XVI) Necessary Calculation Supplements for Geometric Alignment and Local Leveling (Optional) 1) Geometric Deviation and Alignment Force: Define the horizontal offset of the structural geometric center relative to the reference axis as e(t). The flexible limiting tension cable (210) generates a horizontal resultant force F_c under the control of the active / semi-active damping actuator (220), which can be written as F_c=Σ_k T_k*sinφ_k (example), where T_k is the tension of the k-th tension cable and φ_k is the angle between it and the vertical direction. The alignment restoring torque can be written as M_c≈F_c*h_c (h_c is the lever arm), and constrain M_c>=M_w M_margin to keep the geometric center within the safety envelope when tilt unloading is allowed. 2) Leveling Platform Control: Let the tilt angle of the support structure be θ(t), and the residual tilt angle of the leveling platform relative to the horizontal plane be θ_p(t) = θ(t) θ_comp(t), where θ_comp is the compensation angle generated by the parallel actuator (341). The control objective is |θ_p(t)| <= θ_allow (example), and the upper limit of the compensation angle rate |dθ_comp / dt| <= θ_dot,max can be set to avoid excessively fast actions causing additional excitation. 3) Coordination with Monitoring Criteria: The tension change ΔT_k caused by the centering and leveling actions and the residual load change ΔR_i can be incorporated into the low-frequency summary as a check item for E_global or its components to avoid the attitude control actions triggering new global positive feedback.
[0089] (XVII) Necessary Calculation Supplements for Aerodynamic Lift Conversion and Angular Momentum Neutralization (Optional) 1) Lift Increment Estimation: For the aerodynamic lift conversion module (410), the vertical lift can be estimated as L≈0.5*ρ_air*C_L*S*v_w^2 (example), where S is the characteristic area, C_L is the lift coefficient, and v_w is the relative wind speed; or the magnitude can be checked according to the equivalent circulation model under the controlled rotating shell (410). The lift ΔF_L can be incorporated into F_i to form a dynamic compensation increment, thereby reducing the dependence on a single buoyancy body or propulsion force. 2) Angular Momentum and Torque Pairing: For any rotating module, its angular momentum can be written as L_z=I*Ω (example). By using the reverse rotation layout (412) to make the angular velocities of adjacent modules opposite in sign, ΣL_z≈0 or its mean value within the sliding window is close to 0, thereby suppressing the overall torsional coupling. In engineering, upper limits for angular velocity |Ω|<=Ω_max and upper limits for acceleration |dΩ / dt|<=Ω_dot,max can be set, and these can be designed in conjunction with the degree-of-freedom release structure (230) and torque limit to avoid rotational control becoming a new source of instability. 3) Including reaction force: Lift / energy harvesting generates additional drag and torque on the incoming flow. Its reaction force can be estimated according to F_react≈P_w / v_w or the equivalent aerodynamic drag model, and it is preferable to include it in P_env or the equivalent load model to maintain the consistency between the energy criterion P_out>=P_in and the structural load check.
[0090] (XVIII) Necessary Calculation Supplements for Dynamically Adjustable Suspension Damping Arrays (Optional) 1) Aerodynamic Resistance and Dissipation Scale of Suspension Ropes: For the equivalent windward diameter d, suspension length L, and relative wind speed v_w of a single rope, the aerodynamic resistance F_drg≈0.5*ρ_air*C_d*(d*L)*v_w^2 can be estimated (example). The equivalent dissipation power of the array can be checked according to P_out,rope≈Σ(F_drg*k_v*v_rel) or equivalent viscous damping c_eq,rope, making P_out,rope≈c_eq,rope*v_rel^2 (example), where v_rel is the relative motion velocity in the outer perimeter region. 2) Height Segmentation and Density Adjustment: Introduce the height coordinate z, and define the rope deployment density ρ_s(z) (number of ropes per unit height) and suspension length L(z). The deployment interval Z_on = {z|v_w(z)>=v_th or f_dist(z)∈N(f_threshold)} can be selected according to the wind speed profile v_w(z) and the dominant disturbance frequency f_dist(z). Within this interval, ρ_s(z) and L(z) are monotonically increased with |f_distf_threshold| or displacement amplification A(z) to enhance local dissipation and coherence disruption. 3) Containment and over-limit strategy: When v_w(z)<=v_low or the safety command enters the over-limit mode, it is preferable to turn ρ_s(z)→0 and contain it in the containment cavity (424) to reduce static resistance and fatigue load; and set upper limits (dL / dt)_max and (dρ_s / dt)_max for the deployment / recovery rate to avoid introducing new excitation.
[0091] (XIX) Calculation and verification path for a typical implementation case at the 1500-meter level (example, not a limitation) 1) Height segmentation and wind profile mapping: Divide the height from 0 to H into Δh segments. Determine the resonance sensitive interval Z_on based on the wind speed profile v_w(z) and the dominant frequency / energy spectrum S(f,z), and select the number of segmented domains n and the deployment range of the suspension damping array accordingly; 2) Core / peripheral impedance gradient: Set the equivalent damping c_ring of the peripheral region and the equivalent stiffness / impedance Z_core of the core region according to the target attenuation coefficient η, so that P_core <= η*P_env, and check the peripheral stroke x_max and the limiting force F_limit; 3) Partial support ratio α_i: Calculate the residual load R_i=G_i(1 α_i) for each segmented domain, check R_i<=R_allow,i, and set an upper limit on |dR_i / dt| to avoid low-frequency coupling amplification caused by sudden changes in residual load; 4) Dissipation level of suspension array: Using F_drg ≈0.5* ρ*C_d*(d*L)*v_w^2 Estimate the single rope resistance, combine ρ_s(z) and relative velocity v_rel to check the array dissipation power P_out,rope, and include it in P_out to verify the energy criterion.
[0092] (20) Necessary verification of failure protection and degradation safety modes (optional) 1) Degradation mode triggering: When power failure, communication interruption, sensor malfunction, or actuator unavailability occurs, the system enters a degradation safety mode, preferably putting the suspension damping array into default deployment or minimum protection configuration, and locking the controlled rotating shell to a neutral attitude; 2) Mechanical boundary of default release in power failure: The locking release force F_release and the counterweight / spring preload F_bias of the deployment mechanism are checked to ensure that F_bias>=F_release in the event of power failure to guarantee reliable deployment. At the same time, the maximum deployment impact force and stroke limit are checked; 3) Stability check in degradation mode: The system after active centering / leveling is treated as a passive energy-consuming structure. The system is checked to ensure that the stroke limit, anti-overturning moment margin, and P_out>=P_in (or its conservative alternative inequality) are still satisfied under extreme wind loads. The risk of cross-domain accumulation is reduced by increasing the upper limit of interface impedance and segmented isolation.
[0093] (21) Calculation and verification path for hierarchical impedance isolation of cluster platform (example, not a limitation) For a cluster platform consisting of multiple systems (100) connected in parallel, functional partitions can be regarded as sub-network nodes. The interval transfer rate T_ab(ω) = |X_b(ω)| / |X_a(ω)| is defined. By setting multi-level restricted coupling interfaces and peripheral energy dissipation bands at the partition boundaries, T_ab(ω) <= T_ab,max (example) within the target frequency band can be made. At the same time, human factor thresholds can be set for residential / precision zones (example: acceleration a_rms <= a_th, displacement x_rms <= x_th), and the configuration range of η, Z_min and peripheral travel x_max can be deduced accordingly.
[0094] (XXII) Equivalent and isolation verification of impact loads in aerospace operations (example, not a limitation) The transient loads generated during launch / recovery operations can be equivalently represented as a pulse J, a peak force F_pk, and a spectral distribution S_T(f), with the operational area considered a special case of the peripheral input power P_anchor and included in the coupling window W(t). Verification objectives include: under the most unfavorable conditions, the dissipation capacity of the peripheral energy dissipation area and the suspended damping array must satisfy P_out>=P_in, and the residual disturbance in the core area must satisfy P_core<= η*P_env or an equivalent displacement / acceleration threshold. Simultaneously, the timing and amplitude limiting of the segmented isolation actions are verified to prevent energy bypassing or triggering of new phase locks during the impact period. Attached Figure Description
[0095] Figure 1 This is a vertical schematic diagram of the system's macroscopic architecture, showing the structural segments and distributed gravity compensation along the height direction, and connecting adjacent segment domains through a restricted coupling interface.
[0096] Figure 2 This is a detailed transverse cross-section of a single topological segment domain, showing the radial impedance gradient layout of the core functional area and the outer power dissipation zone, as well as the autonomous attitude leveling platform within the core area.
[0097] Figure 3 The detailed diagram of the confined coupling interface mechanical structure shows the parallel structure of the flexible limiting tension cable and the active / semi-active damping actuator to achieve finite degree of freedom coupling and energy dissipation.
[0098] Figure 4 This is a schematic diagram of the working status of the external aerodynamic functional module, showing the switching between aerodynamic lift mode and the deployment mode of the suspended damping array under strong winds.
[0099] Figure 5 The system collaborative operation control logic block diagram shows the closed-loop collaborative control process based on energy stability criteria and global monitoring.
[0100] Explanation of reference numerals in the attached figures
[0101]
Claims
1. A distributed topology decoupling support system for near-space height construction, characterized in that, include: Multiple structural segmented domains (1101-110n) are arranged along the height direction. Multiple support / compensation node units (330) are set within each structural segment domain or between adjacent structural segment domains to balance the gravity load of the corresponding height segment on-site or partially close within a preset threshold so that the net load borne by the bottom or anchorage bearing path is the sum of the residual loads R_i of each domain ΣR_i; multiple restricted coupling interfaces (200) are set between adjacent structural segment domains to limit cross-domain degrees of freedom and suppress the propagation and accumulation of disturbance energy along the height direction, wherein the restricted coupling interface (200) includes at least a cross / opposite flexible limiting tension cable (210) and an active / semi-active damping actuator (220) arranged in parallel with the flexible limiting tension cable (210), and optionally includes a degree of freedom release structure (230); and a global monitoring unit (550) is used to synchronize the status and interact with multiple edge control units (540) through a synchronization bus (570) to issue graded resistance increase or locking commands to the restricted coupling interface (200) when an abnormal trend occurs.
2. The system according to claim 1, characterized in that, The gravity compensation node unit (330), the confined coupling interface (200), and / or the local load-bearing components adopt a modular and detachable structure, and are equipped with quick-release mechanical interfaces and electrical / communication quick-connect interfaces to support distributed assembly, maintenance and replacement, recycling and redeployment, and upgrade replacement; and multiple systems can be connected in parallel in the horizontal and / or vertical directions through the confined coupling interface to form a cluster platform system with unified global monitoring and hierarchical impedance management.
3. The system according to claim 1, characterized in that, The gravity compensation node unit is selected from one or more of buoyancy nodes, aerodynamic lift nodes, and propulsion nodes, and the compensation force F_i in any structural segment domain is all or part of the equivalent load G_i of that segment domain. The compensation ratio α_i = F_i / G_i is defined, 0 < α_i <= 1, and the residual load R_i = G_i − F_i satisfies R_i <= σ, where σ is a preset residual load threshold. The aerodynamic lift node may include an external aerodynamic functional module (400), which converts horizontal wind energy into vertical auxiliary lift ΔF_L through an aerodynamic lift conversion shell (410) and / or an asymmetric aerodynamic structure. The adaptive adjustment of ΔF_L can be achieved by adjusting the aerodynamic surface pitch angle and / or rotational angular velocity ω; and a reverse rotation layout can be adopted so that adjacent layers or symmetrical modules rotate in opposite directions to achieve angular momentum and driving torque counterbalance within the structural segment, or a compensating torque can be provided by aerodynamic control surfaces / attitude control surfaces and / or reaction torque actuators to maintain torque balance when wind direction changes or counterbalance efficiency decreases; wherein, the controlled rotating shell and / or its driving mechanism can be equipped with a rotation locking / limiting mechanism (413) to stop rotation and return it to a preset neutral attitude in the event of excessive wind field, abnormal vibration or failure.
4. The system according to claim 1, characterized in that, The system further includes a radial impedance gradient layout (flexible on the outside and rigid on the inside), which includes at least a core functional area (310) and an outer peripheral energy dissipation zone (320): the equivalent stiffness k_core of the core functional area (310) is higher than the equivalent stiffness k_ring of the outer peripheral energy dissipation zone (320), and k_ring is 10% to 30% of k_core, so that lateral disturbances are preferentially guided to the outer peripheral energy dissipation zone (320) to undergo large deformation and dissipation, while the core functional area (310) maintains a low displacement response and meets human-friendly constraints.
5. The system according to claim 4, characterized in that, A dynamically adjustable suspension damping array (420) is provided on the outer side of the outer peripheral energy dissipation band (320). The suspension damping array (420) includes a retractable damping rope array (421), an end-tuning counterweight (422), and a deployment / retraction mechanism (423). It also has an outer peripheral skin storage cavity (424) to store the damping ropes under non-strong wind conditions. The central control unit (500) adjusts the rope suspension length L (z) and spatial distribution density ρ_s (z) according to the wind speed profile, wind direction, and disturbance spectrum to form a broadband dissipation band and suppress random wind field excitation.
6. The system according to claim 1, characterized in that, The system also includes a multi-dimensional sensor array (510), a central control unit (500), and an edge control unit (540). The edge control unit (540) is located at each structural segment (110i) or its adjacent confined coupling interface (200) to independently control local disturbances in its segment and to exchange low-frequency summary information bidirectionally with the central control unit (500). The edge control unit (540) performs tension closed-loop control on the flexible limiting tension cable (210) and the active / semi-active damping actuator (220): using the tilt angle / azimuth angle, inter-layer relative displacement, cable force / actuator stroke collected by the sensor array (510) as inputs to form attitude and centering errors, and mapping the errors to each The target tension and equivalent damping commands are distributed according to the preset tension distribution relationship, and the commands are limited, the rate is limited and anti-saturation is processed; when a power supply / communication abnormality, actuator saturation or a degradation command is detected by the global monitoring unit (550), the degradation mode is entered, and (210) is returned to the pre-tension safety value (the pre-tension safety value is: sufficient to prevent cable relaxation and suppress impact load without introducing a tension level exceeding the preset additional stiffness upper limit) and (220) is locked in a passive damping or mechanical limit state to maintain the structure from falling and avoid cascading instability; wherein, the global monitoring unit (550) and the edge control unit (540) can maintain timestamp consistency and state synchronization through the synchronization bus (570).
7. The support system according to claim 1, characterized in that: The support system has a degradation safety mode. When a power outage, key sensor failure, or control link interruption occurs, the system automatically switches to a passive stable state through mechanical locking and passive damping, and releases the locking of the variable density suspension damping array (420) so that it automatically unfolds under gravity to provide passive dissipation. When the damping rope is detected to be tangled, the tension is exceeded, or the recovery fails, the winch and storage mechanism (423) triggers segmented recovery, tripping, or discarding actions to ensure the stability of the restricted coupling interface (200) and the core functional area.
8. A segmented dynamic decoupled operation control method for the system according to any one of claims 1-7, characterized in that, include: a) Divide the target height range into multiple structural segment domains and establish local dynamic envelopes, and set a local support / compensation ratio α_i (0 < α_i <= 1) for each structural segment domain to limit the residual load; b) Collect node status signals and perform spectrum analysis to obtain the perturbation dominant frequency f_dist; c) Calculate the segment dynamic decoupling frequency threshold f_threshold based on the mapping between environmental perturbation parameters and structural characteristic parameters, where f_threshold usually corresponds to the equivalent cutoff frequency / band-stop boundary frequency of the confined coupling interface (200) or its neighborhood; d) When f_dist is within or exceeds the preset neighborhood of f_threshold, adjust the equivalent impedance or nonlinear damping parameter of the confined coupling interface so that its energy transfer function exhibits high-stopband / band-stop characteristics in the corresponding frequency band; e) The system evolution is constrained by the energy balance criterion, so that the dissipated power P_out is always not less than the equivalent input power P_in, and each segment domain is allowed to oscillate in a controlled manner within the local dynamic envelope and maintain a non-zero instantaneous phase difference to avoid overall phase locking; f) E_global and g(t)=dE_global / dt are calculated by the global deviation amplification speed monitoring unit, and a first-level threshold g1 and a second-level threshold g2 (g2>g1) are set: when g(t)>g1, the resistance increase / dissipation increase command is triggered to improve the equivalent damping of the confined coupling interface (200) and / or the suspension damping array (420); when g(t)>g2 and the duration Δt exceeds the preset value, the system is forcibly locked into a degraded safety state (state B in Figure 4) and remains locked until a reset command is received or manual maintenance is performed to release it.
9. The method according to claim 8, characterized in that, The energy balance criterion adopts dE / dt=P_env+P_anchor−P_out or equivalent input power P_in=P_env+P_anchor, where P_env is the equivalent input power of environmental disturbance and P_anchor is the external energy or equivalent traction input power; and the injection period of P_anchor is limited by the coupling window W(t).
10. The method according to claim 9, characterized in that, The global monitoring unit (550) and multiple edge control units (540) maintain timestamp consistency and exchange low-frequency state summaries via a synchronization bus (570), and perform distributed computing power allocation based on computing power and communication status: under normal operating conditions, the edge control units (540) execute local closed-loop operators, and the global monitoring unit (550) executes global index calculation and hierarchical strategy generation; when g(t) is detected to exceed the secondary threshold and continue for Δt, or when there is insufficient computing power / communication abnormality in the edge unit, the global monitoring unit (550) takes over the key control operators or control law parameters of the edge unit (540) and uniformly issues locking / resistance / recovery strategies. Simultaneously, the upper limit of the injected power P_max and the upper limit of the power slope (dP_anchor / dt)_max are set for the external input power P_anchor to match the response bandwidth of the restricted coupling interface impedance adjustment; and when the environmental safety index violates the safety criterion, the safety window prioritizes to cover the geometric window logic and triggers safety exit and failure isolation; and, according to the wind speed profile, wind direction and spectrum distribution of each height layer and the displacement amplification rate / resonance sensitivity index, the deployment or storage of the suspended damping array (420) is triggered, and the density and suspension length of the damping rope array (421) are adjusted to weaken the coherence of vortex-induced vibration and enhance aerodynamic dissipation.