Impact resistance control method and system based on multistage response

Abstract

The invention discloses an anti-impact control method and system based on multistage response, and is suitable for an inter-board protection structure. The inter-board protection structure comprises an intelligent elastic buffer layer and a buffer damping layer. The method comprises the steps that impact signals acting on the inter-board protection structure are collected in real time; determining deformation adjustment information of the intelligent elastic buffer layer and damping adjustment information of the buffer damping layer according to the impact signal, the buffer structure parameters of the intelligent elastic buffer layer and the damping structure parameters of the buffer damping layer; and according to the deformation adjustment information and the damping force adjustment information, the inter-board protection structure is controlled to conduct structure adjustment, so that the anti-impact response of the inter-board protection structure to the impact signal is achieved, and the anti-impact buffering effect is improved.

Description

Technical Field

[0001] This invention relates to the field of inter-hull protection and shock-absorbing technology, specifically to a shock-absorbing control method and system based on multi-level response. Background Technology

[0002] As modern equipment and vehicles increasingly demand higher requirements for structural safety and impact resistance, inter-hull protective structures, as important protective units in equipment or vehicles, must possess excellent energy absorption and rapid response capabilities to effectively resist the impact of explosions, collisions, and multi-directional impact loads.

[0003] Traditional inter-hull protection structures often use metal elastomers, foam materials, or a single damping layer. These structures not only suffer from technical problems such as low energy dissipation efficiency and poor adaptability, but are also limited by the properties of the materials used in the protection structure, which can only perform passive response and fixed energy absorption. This results in slow response speed and makes it difficult to meet the increasingly complex and variable impact buffering requirements. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention discloses a shock-resistant control method and system based on multi-level response, which is used to improve the effect of shock-resistant buffering.

[0005] To achieve the above objectives, this invention discloses a shock resistance control method based on multi-level response, applicable to inter-hull protection structures; the inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer; the method includes: Real-time acquisition of impact signals acting on the inter-hull protective structure; The deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer are determined based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer. The deformation adjustment information and the damping force adjustment information are used to control the inter-hull protection structure to perform structural adjustments in order to achieve the impact resistance response of the inter-hull protection structure to the impact signal.

[0006] This invention discloses a multi-level response-based shock resistance control method in which the inter-ship protection structure provides an actively adjustable physical framework. An intelligent elastic buffer layer can change its deformation state according to commands to absorb impact energy, while a buffer damping layer can adjust its damping characteristics to dissipate remaining energy. The two work together to achieve graded energy absorption, solving the problem of poor adaptability of traditional single structures. Next, by continuously monitoring external impacts, impact location and intensity data are quickly acquired, providing real-time input for subsequent adjustments and avoiding the lag of traditional passive responses, significantly improving response speed. Furthermore, by combining real-time impact data with inherent structural parameters, precise adjustment commands for the current impact are dynamically calculated, enabling the protection structure to adapt to impact loads of different intensities and locations, solving the problem of poor adaptability caused by the fixed energy absorption of traditional structures. Finally, based on deformation adjustment information and damping force adjustment information, the inter-ship protection structure is controlled to perform structural adjustments to achieve shock resistance response to impact signals: executing the calculated adjustment commands drives the structure to undergo real-time deformation and damping state changes, actively absorbing and dissipating impact energy, forming a closed-loop feedback mechanism to achieve a rapid and efficient shock resistance effect.

[0007] As a preferred example, the real-time acquisition of impact signals acting on the inter-hull protection structure includes: Real-time acquisition of pressure sensing information for each surface region in the inter-hull protection structure; wherein, the pressure sensing information includes the regional location information and surface pressure value of the surface region; For any given surface region, when the surface pressure value exceeds a preset pressure threshold, it is determined that the surface region has been impacted. The region location information of the surface region is then used as the impact region location information, and the surface pressure value of the surface region is used as the impact pressure value, in order to generate the impact signal of the inter-hull protection structure.

[0008] The aforementioned scheme, through zoned pressure sensing and threshold determination mechanisms, can capture localized impact events, avoiding positioning deviations caused by overall measurement, accurately identifying the specific location of the impact, and ensuring that subsequent adjustments are buffered at the actual stress points. The surface pressure value quantifies the impact intensity, providing numerical basis for adjustment decisions; the threshold mechanism effectively filters environmental noise and minor vibration interference, responding only to significant impact events to ensure that the response is initiated only when an effective impact occurs, thereby improving overall impact resistance efficiency.

[0009] As a preferred example, the intelligent elastic buffer layer includes a flexible substrate and a plurality of elastic fiber partitions embedded in the flexible substrate; wherein each of the elastic fiber partitions includes a plurality of elastic fibers woven into a mesh.

[0010] The above solution effectively solves the problem of inaccurate local deformation control by designing a refined structure for the intelligent elastic buffer layer. The flexible substrate, as the basic support layer, provides the overall structure with flexibility and stability, enabling the embedded elastic fiber partitions to maintain structural integrity under impact. The elastic fiber partitions divide the buffer layer into multiple independent control units to accurately locate target partitions based on the impact area's position information, achieving independent deformation adjustment in local areas. Within each elastic fiber partition, multiple elastic fibers are woven into a mesh structure. This mesh design not only enhances the mechanical coupling and energy transfer efficiency between fibers but also allows the fibers to undergo reversible deformation collaboratively under the action of a driving signal. This enables them to quickly absorb impact energy and recover their original shape after impact, significantly improving the accuracy and reversibility of deformation adjustment, and enhancing energy dissipation efficiency and response speed.

[0011] As a preferred example, the buffer damping layer includes a plurality of encapsulation cavities; wherein each of the encapsulation cavities is filled with magnetorheological fluid; and each of the encapsulation cavities is embedded with an electromagnetic coil.

[0012] The above solution, by designing the buffer damping layer as multiple independent encapsulated cavities and combining the synergistic effect of magnetorheological fluid and electromagnetic coils, achieves dynamic adjustability and precise zoned control of damping characteristics, thus effectively solving the adaptability defects of fixed damping structures in impact response. Each encapsulated cavity is filled with magnetorheological fluid, utilizing the physical mechanism of the reversible change in rheological properties of the magnetorheological fluid under the action of a magnetic field, allowing the damping state to rapidly transition from a liquid to a near-solid state. This dynamically adjusts the energy absorption capacity according to the impact pressure value, enhancing the system's adaptability to different impact levels. The design of embedding electromagnetic coils in each encapsulated cavity generates a precise magnetic field through current regulation, enabling independent control of the magnetorheological fluid's state transition based on real-time impact signals. This achieves on-demand distribution of damping force and efficient secondary energy absorption, ensuring rapid and multi-level synergistic impact response.

[0013] As a preferred example, determining the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer includes: Determine the location of the impact zone and the impact pressure value from the impact signal; Based on the impact area location information, the fiber partition location information of each elastic fiber partition, and the cavity location information of each encapsulation cavity, the target elastic fiber partition and the target encapsulation cavity to be adjusted are determined. Obtain the fiber performance parameters of the elastic fibers within the target elastic fiber partition, and obtain the type and intensity of the driving signal corresponding to the target elastic fiber partition based on the fiber performance parameters and the impact pressure value; The impact level of the impact signal is determined based on the impact pressure value and a plurality of preset impact pressure thresholds, and the current value of the target packaging cavity is determined based on the impact level and the magnetorheological performance parameters of the magnetorheological fluid.

[0014] The above scheme determines the location information of the impact area and the impact pressure value from the impact signal, accurately pinpointing the specific coordinates and energy magnitude of the impact, providing a spatial and intensity basis for subsequent adjustments. Next, through precise matching of location information, local identification of the impacted area is achieved, ensuring that adjustments are made only to the actual damaged units, reducing energy waste and delays caused by global response, and improving the system's targeting and efficiency. The fiber performance parameters of the elastic fibers within the target elastic fiber zone are obtained, and the type and intensity of the driving signal are determined based on these parameters and the impact pressure value, matching the deformation degree of the elastic fibers with the impact energy. This enables energy pre-absorption of reversible deformation in the primary response. Specifically, the impact is divided into different levels using a grading threshold, and an appropriate current is calculated based on the rheological characteristics of the magnetorheological fluid under a magnetic field, allowing the damping state to dynamically switch with the impact intensity. This achieves precise control of multi-level energy dissipation, overcoming the limitation of a single damping mode being unable to adapt to varying loads.

[0015] As a preferred example, controlling the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information to achieve the impact resistance response of the inter-hull protection structure to the impact signal includes: The driving signal for the target elastic fiber partition is generated according to the type and the intensity. The driving signal is sent to the target elastic fiber partition according to the fiber partition location information, so that the elastic fiber undergoes reversible deformation. By pre-absorbing the impact energy corresponding to the impact pressure value through the deformed target elastic fiber partition, the intelligent elastic buffer layer achieves a primary impact resistance response to the impact signal.

[0016] The above scheme generates driving signals for the target elastic fiber partitions based on type and intensity, ensuring that the driving signals closely match the actual impact energy and material response characteristics, thus achieving precise control of the deformation process. By using fiber partition location information, the driving signals are ensured to act only on the target partitions rather than the entire structure, significantly reducing signal transmission delay and energy waste, and improving the localization efficiency and response speed of control. This mechanism enables reversible deformation of the elastic fibers, achieving not only immediate dissipation of impact energy but also ensuring the structure's rapid recovery capability after impact, supporting multiple continuous protection requirements, and enhancing the system's reliability and durability. The intelligent elastic buffer layer's primary impact resistance response decomposes the energy absorption process into an adjustable primary stage, forming a synergistic effect with the overall multi-level system, significantly optimizing the adaptability and protective effectiveness of the inter-hull protection structure in complex impact environments.

[0017] As a preferred example, controlling the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information to achieve the impact resistance response of the inter-hull protection structure to the impact signal includes: The current corresponding to the electromagnetic coil inside the target packaging cavity is generated according to the current value, and the current is delivered to the electromagnetic coil to make the electromagnetic coil generate a magnetic field. The magnetic field controls the magnetorheological fluid in the target packaging cavity to change from a liquid state to a near-solid state, thereby altering the damping state of the target packaging cavity. The target encapsulation cavity, after the damping state change, performs secondary absorption of the impact energy corresponding to the impact pressure value, thereby realizing the multi-level impact resistance response of the buffer damping layer to the impact signal.

[0018] The above solution addresses the lack of a response mechanism in the buffer damping layer by refining the specific execution paths for current application and damping state adjustment, ensuring precise triggering and efficient operation of the secondary energy absorption stage. Based on the current value, a current corresponding to the electromagnetic coil within the target encapsulation cavity is generated, ensuring the electromagnetic coil can be activated as needed. Then, the magnetorheological fluid within the target encapsulation cavity is controlled to change from a liquid to a near-solid state based on the magnetic field, significantly improving the real-time adjustment capability of the material's damping characteristics. This optimizes the energy dissipation path for different impact intensities, thereby enabling secondary absorption of the impact energy corresponding to the impact pressure value. It effectively captures and dissipates the remaining impact energy after the primary response, preventing energy transfer to the internal structure and achieving a multi-level impact-resistant response of the buffer damping layer to impact signals.

[0019] On the other hand, the present invention discloses a shock-resistant control system based on multi-level response, applicable to inter-hull protection structures; the inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer; the system includes a signal monitoring module, a structural adjustment module and a shock-resistant response module; The signal monitoring module is used to collect impact signals acting on the inter-hull protective structure in real time; The structural adjustment module is used to determine the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer. The shock resistance response module is used to control the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to realize the shock resistance response of the inter-hull protection structure to the impact signal.

[0020] This invention discloses a multi-level response-based shock-resistant control system in which the inter-ship protection structure provides an actively adjustable physical framework. An intelligent elastic buffer layer can change its deformation state according to commands to absorb impact energy, while a buffer damping layer can adjust its damping characteristics to dissipate remaining energy. The two work together to achieve graded energy absorption, solving the problem of poor adaptability of traditional single structures. Next, by continuously monitoring external impacts, impact location and intensity data are quickly acquired, providing real-time input for subsequent adjustments, avoiding the lag of traditional passive responses and significantly improving response speed. Furthermore, by combining real-time impact data with inherent structural parameters, precise adjustment commands for the current impact are dynamically calculated, enabling the protection structure to adapt to impact loads of different intensities and locations, solving the problem of poor adaptability caused by the fixed energy absorption of traditional structures. Finally, based on deformation adjustment information and damping force adjustment information, the inter-ship protection structure is controlled to adjust its structure to achieve shock-resistant response to impact signals: executing the calculated adjustment commands drives the structure to undergo real-time deformation and damping state changes, actively absorbing and dissipating impact energy, forming a closed-loop feedback mechanism to achieve a rapid and efficient shock-resistant effect.

[0021] As a preferred example, the inter-hull protection structure further includes a bottom support structure; wherein the bottom support structure includes a honeycomb metal structure and gradient foam metal filled in the honeycomb metal structure; the upper surface of the honeycomb metal structure is spliced ​​with the lower surface of the buffer damping layer.

[0022] The above solution effectively solves the problem of insufficient dissipation of residual impact energy by integrating a bottom support structure. Its core lies in the synergistic effect of honeycomb metal structure and gradient foam metal to achieve gradient energy absorption and improve structural stability.

[0023] As a preferred example, the signal monitoring module includes an impact recognition unit and a signal output unit; The impact identification unit is used to acquire pressure sensing information of each surface area in the inter-hull protection structure in real time; wherein, the pressure sensing information includes the area location information and surface pressure value of the surface area; The signal output unit is used to determine that any surface area is impacted when the surface pressure value exceeds a preset pressure threshold. Then, the region location information of the surface area is used as the impact region location information and the surface pressure value of the surface area is used as the impact pressure value to generate the impact signal of the inter-hull protection structure.

[0024] The aforementioned scheme, through zoned pressure sensing and threshold determination mechanisms, can capture localized impact events, avoiding positioning deviations caused by overall measurement, accurately identifying the specific location of the impact, and ensuring that subsequent adjustments are buffered at the actual stress points. The surface pressure value quantifies the impact intensity, providing numerical basis for adjustment decisions; the threshold mechanism effectively filters environmental noise and minor vibration interference, responding only to significant impact events to ensure that the response is initiated only when an effective impact occurs, thereby improving overall impact resistance efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic flowchart of an anti-shock control method based on multi-level response disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an anti-shock control system based on multi-level response disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram of an inter-ship protection structure disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a buffer damping layer disclosed in an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] See Figure 1 To address the limitations of existing technologies in responding promptly to external impacts and improve the timeliness and effectiveness of shock resistance response, this embodiment discloses a multi-level response-based shock resistance control method applicable to inter-hull protection structures. The inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer. The method includes: Step 101: Real-time acquisition of impact signals acting on the inter-hull protective structure.

[0031] Step 102: Determine the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer.

[0032] Step 103: Control the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to achieve the impact resistance response of the inter-hull protection structure to the impact signal.

[0033] The above steps, through continuous monitoring of external impacts, rapidly acquire impact location and intensity data, providing real-time input for subsequent adjustments. This avoids the lag inherent in traditional passive responses and significantly improves response speed. Furthermore, by combining real-time impact data with inherent structural parameters, precise adjustment commands are dynamically calculated for the current impact, enabling the protective structure to adapt to impact loads of varying intensities and locations. This solves the problem of poor adaptability caused by the fixed energy absorption of traditional structures. Finally, based on deformation and damping force adjustment information, the inter-hull protective structure is controlled to perform structural adjustments to achieve its impact resistance response: executing the calculated adjustment commands drives real-time deformation and damping state changes in the structure, actively absorbing and dissipating impact energy, forming a closed-loop feedback mechanism to achieve a rapid and efficient impact resistance effect.

[0034] In this embodiment, step 101 includes: Step 1011: Acquire pressure sensing information of each surface area in the inter-hull protection structure in real time; wherein, the pressure sensing information includes the area location information and surface pressure value of the surface area; Step 1012: For any of the surface areas, when the surface pressure value exceeds a preset pressure threshold, it is determined that the surface area has been impacted. Then, the area location information of the surface area is used as the impact area location information and the surface pressure value of the surface area is used as the impact pressure value to generate the impact signal of the inter-hull protection structure.

[0035] Specifically, in this embodiment, in order to improve the timely response of the inter-hull protection structure to impact signals, it is necessary to monitor each surface area of ​​the inter-hull protection structure in real time, so as to identify whether the surface area has been impacted based on the change of pressure value in the surface area.

[0036] Preferably, an array of sensors can be arranged in an array within each surface region of the interplane protection structure. These sensors, distributed across each surface region, can monitor data such as acceleration and stress in real time when an impact load is applied to the surface of the interplane protection structure, allowing for timely identification of whether the surface has been impacted. Furthermore, to avoid errors in identifying impact-resistant buffer areas and to accurately buffer impacted areas, the core impact-affected area can be identified promptly based on the position information of each sensor in the deployed sensor array within the interplane protection structure.

[0037] It is important to note that the sensor array can acquire various physical parameters of the inter-hull protection structure under impact in real time through accelerometers and strain gauges. After the sensor array acquires these physical parameters, a control core module can be configured to interact with the sensor array to deploy the data processing to an external control system, improving data processing efficiency. The control core module can employ an intelligent control board based on an STM32 series or similar high-performance embedded chip. This board is responsible for integrating sensor information, analyzing the current state of the inter-hull protection structure, determining the impact level, and issuing corresponding commands to drive the inter-hull protection structure to respond to different impact levels, thereby improving its shock resistance and adaptability to complex environments.

[0038] The above steps, through zoned pressure sensing and threshold determination mechanisms, can capture localized impact events, avoiding positioning deviations caused by overall measurements, accurately identifying the specific location of the impact, and ensuring that subsequent adjustments are buffered at the actual stress points. The surface pressure value quantifies the impact intensity, providing a numerical basis for adjustment decisions; the threshold mechanism effectively filters environmental noise and minor vibration interference, responding only to significant impact events to ensure that the response is initiated only when an effective impact occurs, thereby improving overall impact resistance efficiency.

[0039] In this embodiment, the intelligent elastic buffer layer includes a flexible substrate and a plurality of elastic fiber partitions embedded in the flexible substrate; wherein, each elastic fiber partition includes a plurality of elastic fibers woven into a mesh.

[0040] Specifically, in this embodiment, the intelligent elastic buffer layer serves as the first response unit of the inter-hull protection structure, and its functionality depends on the coordinated control of material structure design, functional nano-doping, and multi-scale integrated manufacturing processes.

[0041] Preferably, the intelligent elastic buffer layer can be prepared using main-chain or side-chain liquid crystal monomers with thermo- or photo-responsive capabilities. This allows the intelligent elastic buffer layer to undergo varying degrees of deformation by generating light or electrical signals of different intensities, thereby achieving initial absorption of impact energy. The preparation of the intelligent elastic buffer layer begins with a liquid crystal elastomer precursor solution. Main-chain or side-chain liquid crystal monomers with thermo- or photo-responsive capabilities are selected, and continuous liquid crystal elastomer fibers are formed through methods such as solution spin coating, melt extrusion, or wet spinning. To enhance its responsiveness and functional adaptability, functional nanofillers such as carbon nanotubes, graphene, or gold nanorods are uniformly doped into the polymerization precursor solution to improve the fiber's response efficiency to electrothermal or near-infrared light. After the liquid crystal elastomer fibers are formed, axial or helical orientation structures are achieved through external stretching, electric field, or magnetic field orientation processes to control their anisotropy. Subsequently, these functionalized liquid crystal elastomer fibers are woven into layered or mesh-like skin structures and embedded in a flexible substrate to form an intelligent elastic buffer layer with overall flexibility and high local responsiveness.

[0042] To achieve rapid response control of the intelligent elastic buffer layer, the flexible substrate is divided into several elastic fiber zones, each of which includes multiple liquid crystal elastomer fibers woven into a mesh. Each zone's liquid crystal elastomer fibers integrate flexible conductive electrodes or optical fiber channels to receive externally transmitted electrical or optical signals. Based on these signals, the fibers are controlled to undergo reversible deformation within milliseconds, completing structural geometric reconstruction and energy pre-dissipation in the initial impact phase, providing crucial support for the overall buffering performance of the inter-hull protection structure. It is important to note that each elastic fiber zone integrates an independent flexible conductive electrode or optical fiber channel, connected to the external drive system via zoned wiring and isolation circuits to ensure that electrical / optical signals between different areas do not interfere with each other.

[0043] In this embodiment, the refined structure of the intelligent elastic buffer layer effectively solves the problem of inaccurate local deformation control. The flexible substrate, as the basic support layer, provides the overall structure with flexibility and stability, enabling the embedded elastic fiber partitions to maintain structural integrity under impact. The elastic fiber partitions divide the buffer layer into multiple independent control units to accurately locate the target partition based on the impact area location information, achieving independent deformation adjustment in local areas. Within each elastic fiber partition, multiple elastic fibers are woven into a mesh structure. This mesh design not only enhances the mechanical coupling and energy transfer efficiency between fibers but also allows the fibers to undergo reversible deformation collaboratively under the action of a driving signal, thereby quickly absorbing impact energy and restoring their original shape after impact. This significantly improves the accuracy and reversibility of deformation adjustment, and enhances energy dissipation efficiency and response speed.

[0044] In this embodiment, the buffer damping layer includes a plurality of encapsulation cavities; wherein each encapsulation cavity is filled with magnetorheological fluid; and each encapsulation cavity is embedded with an electromagnetic coil.

[0045] Specifically, in this embodiment, the buffer damping layer, as the core functional unit located behind the intelligent elastic buffer layer in the inter-hull protection structure, plays a crucial role in regulating and dissipating impact energy. The buffer damping layer, through the switching of its damping state—that is, the instantaneous switching from low damping to high damping—can effectively cope with impact loads of different intensities, frequencies, and directions.

[0046] Preferably, the buffer damping layer consists of multiple... Figure 4The encapsulation cavity shown is composed of [missing information]. Each of the encapsulation cavities is filled with a high-performance magnetorheological fluid, such as a magnetorheological fluid in which iron-based particles are dispersed in silicone oil or synthetic oil, which has good suspension stability and high magnetic responsiveness. Under normal conditions, it maintains a low viscosity state, ensuring the flexibility and low energy consumption of the structure; upon impact, it is excited by a magnetic field and instantly transforms into a quasi-solid state, forming a high-damping layer to rapidly dissipate energy.

[0047] Furthermore, based on the magnetorheological fluid being excited by a magnetic field, the encapsulation cavity also embeds an electromagnetic excitation device, such as an electromagnetic coil. The electromagnetic coil is distributed around or within the encapsulation cavity. Upon receiving a control command, the electromagnetic excitation device is energized to generate a magnetic field, causing the molecular chains of the magnetorheological fluid to align along the magnetic field direction to form a network structure. This instantly increases the viscosity by several orders of magnitude, with a response time of less than 10 milliseconds. To adapt to impacts of different regions and intensities, independent excitation by zones can be supported. Each encapsulation cavity is equipped with an independent electromagnetic coil. The strength of the magnetic field generated by the electromagnetic coil is controlled by adjusting the current input to it. This strength controls the viscosity of the magnetorheological fluid, thereby switching the damping state of the fluid through viscosity changes, achieving a continuously adjustable damping response from soft to hard.

[0048] Preferably, the buffer damping layer composed of the encapsulation cavities is prepared using a modular, laminated assembly method. First, a flexible polymer film is used to fabricate the encapsulation cavity through heat sealing or laser welding. Magnetorheological fluid is injected inside to form a planar, strip-shaped, or honeycomb-shaped distribution structure. Then, flexible electromagnetic coils are arranged around or inside the cavity, and embedded between layers using multilayer printed circuit technology to ensure good electromagnetic transmission performance and mechanical flexibility. To improve interface stability, micro-bump structures or porous adhesive layers are provided on the upper and lower surfaces of the encapsulation layer of the encapsulation cavity to enhance its mechanical coupling with the intelligent elastic buffer layer. The overall buffer damping layer composed of multiple encapsulation cavities undergoes processes such as hot pressing, plasma treatment, or ultraviolet curing to enhance interlayer adhesion strength, ensuring that the buffer damping layer does not delaminate or leak under high-speed impact.

[0049] In this embodiment, the buffer damping layer is designed as multiple independent encapsulated cavities. This combines the synergistic effect of magnetorheological fluid and electromagnetic coils to achieve dynamic adjustment and precise zoned control of the damping characteristics, effectively addressing the adaptability deficiencies of fixed damping structures in impact response. Each encapsulated cavity is filled with magnetorheological fluid. Utilizing the physical mechanism of the reversible change in rheological properties of the magnetorheological fluid under a magnetic field, the damping state can rapidly transition from a liquid to a near-solid state. This allows for dynamic adjustment of energy absorption capacity based on impact pressure, enhancing the system's adaptability to different impact levels. Each encapsulated cavity also incorporates an electromagnetic coil. By controlling the current, a precise magnetic field is generated, enabling independent control of the magnetorheological fluid's state transition based on real-time impact signals. This achieves on-demand distribution of damping force and efficient secondary energy absorption, ensuring rapid and multi-level synergistic impact response.

[0050] In this embodiment, step 102 includes: Step 1021: Determine the location information of the impact area and the impact pressure value from the impact signal.

[0051] Step 1022: Determine the target elastic fiber partition and target encapsulation cavity to be adjusted based on the impact area location information, the fiber partition location information of each elastic fiber partition, and the cavity location information of each encapsulation cavity.

[0052] Step 1023: Obtain the fiber performance parameters of the elastic fibers within the target elastic fiber partition, so as to obtain the type and intensity of the driving signal corresponding to the target elastic fiber partition based on the fiber performance parameters and the impact pressure value.

[0053] Step 1024: Determine the impact level of the impact signal based on the impact pressure value and a plurality of preset impact pressure thresholds, and determine the current value of the target packaging cavity based on the impact level and the magnetorheological performance parameters of the magnetorheological fluid.

[0054] Specifically, in this embodiment, after receiving an impact signal from a sensor in a sensor array deployed on the inter-hull protective structure to monitor whether each surface area is impacted, the target elastic fiber partition and target encapsulation cavity to be adjusted are determined based on the sensor's position information and the impact force. Simultaneously, the deformation adjustment amount of each target elastic fiber partition and the damping state of the magnetohydrodynamic fluid flow within the target encapsulation cavity are determined based on the impact force, in order to generate corresponding electrical or optical signals and current values ​​for structural regulation.

[0055] The above steps determine the location information of the impact area and the impact pressure value from the impact signal, accurately pinpointing the specific coordinates and energy magnitude of the impact, providing a spatial and intensity basis for subsequent adjustments. Next, through precise matching of location information, local identification of the impacted area is achieved, ensuring that adjustments are made only to the actual damaged units, reducing energy waste and delays caused by global response, and improving the system's targeting and efficiency. The fiber performance parameters of the elastic fibers within the target elastic fiber zone are obtained, and the type and intensity of the driving signal are determined based on these parameters and the impact pressure value, matching the degree of elastic fiber deformation with the impact energy. This enables energy pre-absorption of reversible deformation in the primary response. Specifically, the impact is divided into different levels using a grading threshold, and the appropriate current intensity is calculated based on the rheological characteristics of the magnetorheological fluid under a magnetic field, allowing the damping state to dynamically switch with the impact intensity. This achieves precise control of multi-level energy dissipation, overcoming the limitation of a single damping mode being unable to adapt to varying loads.

[0056] In this embodiment, step 103 includes: Step 1031: Generate a driving signal for the target elastic fiber partition according to the type and intensity; send the driving signal to the target elastic fiber partition according to the fiber partition location information to cause the elastic fiber to undergo reversible deformation; pre-absorb the impact energy corresponding to the impact pressure value through the deformed target elastic fiber partition to realize the primary impact resistance response of the intelligent elastic buffer layer to the impact signal.

[0057] Step 1032: Generate a current corresponding to the electromagnetic coil inside the target packaging cavity based on the current value, and transmit the current to the electromagnetic coil to generate a magnetic field; control the magnetorheological fluid inside the target packaging cavity to change from a liquid state to a near-solid state based on the magnetic field to change the damping state of the target packaging cavity; the target packaging cavity after the damping state change absorbs the impact energy corresponding to the impact pressure value a second time, realizing the multi-level impact resistance response of the buffer damping layer to the impact signal.

[0058] Specifically, in this embodiment, under high-intensity impact, the intelligent elastic buffer layer first deforms according to the electrical or optical signals emanating from its integrated channels to disperse the initial stress. Then, the buffer damping layer quickly stiffens according to the magnetic field generated by the electromagnetic coil to form a second damping barrier, thus constructing a staged, multi-channel energy dissipation path.

[0059] The sensor array continuously monitors the status of the interhull protection structure. When an abnormal impact signal is detected, the control core, used for data processing, quickly identifies its characteristics and retrieves the corresponding response strategy. The intelligent elastic buffer layer and the damping buffer layer are then linked by the drive module to complete the impact resistance process. Subsequent feedback information is used to fine-tune the control output and store historical data. It possesses adaptive adjustment capabilities, rapid response performance, and multi-level energy absorption control logic, enabling differentiated responses to impacts of different types and intensities, significantly improving the blast resistance and vibration reduction capabilities of the interhull structure. In the response phase, the intelligent elastic buffer layer uses electrothermal heating to induce rapid reversible deformation of the liquid crystal elastomer, actively absorbing some of the impact energy. Meanwhile, the electromagnetic drive module of the damping buffer layer controls the coil to generate a magnetic field, adjusting the viscosity of the magnetorheological fluid to achieve passive buffering against high-intensity impacts. The drive circuits of the two response components, the intelligent elastic buffer layer and the damping buffer layer, are controlled by a PWM controller and a constant current source, respectively, and their response speed and intensity can be adjusted independently.

[0060] It is important to note that the control core can also determine whether to activate the buffer damping layer based on the impact level and control the corresponding electromagnetic coil to start. After the magnetic field is activated, the buffer damping layer rapidly transforms from a liquid state to a quasi-solid state, forming a high-damping region that effectively blocks the propagation of the shock wave. The viscosity increase of the magnetorheological fluid in the buffer damping layer is positively correlated with the magnetic field strength; the greater the magnetic field strength, the more significant the viscosity increase (typically from 0.1–1 Pa·s to 10–100 kPa·s, depending on the magnetorheological fluid formulation).

[0061] The above steps generate driving signals for the target elastic fiber partitions based on type and intensity, ensuring that the driving signals closely match the actual impact energy and material response characteristics, thus achieving precise control of the deformation process. By using fiber partition location information, the driving signals are ensured to act only on the target partitions rather than the entire structure, significantly reducing signal transmission delay and energy waste, and improving the localization efficiency and response speed of control. This mechanism enables reversible deformation of the elastic fibers, achieving not only immediate dissipation of impact energy but also ensuring the structure's rapid recovery capability after impact, supporting multiple continuous protection requirements, and enhancing the system's reliability and durability. The intelligent elastic buffer layer's primary impact resistance response decomposes the energy absorption process into an adjustable primary stage, forming a synergistic effect with the overall multi-level system, significantly optimizing the adaptability and protective effectiveness of the inter-hull protection structure in complex impact environments.

[0062] Furthermore, by refining the specific execution paths for current application and damping state adjustment, the problem of the lack of a response mechanism in the buffer damping layer is solved, ensuring precise triggering and efficient operation of the secondary energy absorption stage. The current corresponding to the electromagnetic coil within the target encapsulation cavity is generated based on the current value, ensuring that the electromagnetic coil can be activated as needed. Then, the magnetorheological fluid within the target encapsulation cavity is controlled to change from a liquid to a near-solid state based on the magnetic field, significantly improving the real-time adjustment capability of the material's damping characteristics. This optimizes the energy dissipation path for different impact intensities, thereby enabling secondary absorption of the impact energy corresponding to the impact pressure value. It effectively captures and dissipates the remaining impact energy after the primary response, preventing energy transfer to the internal structure and achieving a multi-level impact resistance response of the buffer damping layer to impact signals.

[0063] On the other hand, refer to Figure 2 This embodiment also discloses a shock-resistant control system based on multi-level response, applicable to inter-hull protection structures; the inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer; the system includes a signal monitoring module 201, a structural adjustment module 202 and a shock-resistant response module 203.

[0064] The signal monitoring module 201 is used to collect the impact signals acting on the inter-hull protection structure in real time.

[0065] The structural adjustment module 202 is used to determine the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer.

[0066] The shock resistance response module 203 is used to control the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to realize the shock resistance response of the inter-hull protection structure to the impact signal.

[0067] In this embodiment, the inter-hull protection structure further includes a bottom support structure; wherein, the bottom support structure includes a honeycomb metal structure and gradient foam metal filled in the honeycomb metal structure; the upper surface of the honeycomb metal structure is spliced ​​with the lower surface of the buffer damping layer.

[0068] Specifically, in this embodiment, to improve the multi-stage response to impact energy, a bottom support structure can be formed in the layer below the buffer damping layer, so as to form a shape according to the direction of the inter-hull protection structure from the outside to the inside. Figure 3 The structure shown is a multi-level impact-resistant structure consisting of an intelligent elastic buffer layer, a buffer damping layer, and a bottom support structure.

[0069] The bottom support structure, serving as the core component of the intelligent elastic buffer layer and the damping layer, is designed to provide an energy absorption mechanism under impact loads, thereby enhancing the system's overall impact resistance and structural stability. Located beneath the damping layer, this structure, through multi-layered geometric design and material selection, forms an energy dissipation path of "primary buffering – intermediate energy dissipation – end support." The bottom support structure primarily consists of honeycomb metal components and gradient foam metal. The honeycomb components can be made of aluminum alloy or titanium alloy, possessing good specific strength and controllable yield characteristics; the foam metal achieves different compression responses in different regions by varying porosity and gradient density, matching the energy dissipation requirements at different stages.

[0070] Preferably, the honeycomb structure is formed by cutting, applying adhesive, and stacking materials, followed by pressure curing, stretching, and shaping. The material is then cut and trimmed to the required size and combined with a panel to form a sandwich structure. The foamed metal is manufactured using powder metallurgy and melt foaming methods. Various units are integrated through modular assembly and interface adhesives, embedded in the bottom layer of the system to ensure the orderly response of the overall structure under stress. The honeycomb structure is filled with gradient foamed metal.

[0071] Furthermore, the bottom support structure integrates pressure-sensitive or temperature-sensitive sensor modules to provide real-time feedback on impact intensity and structural damage, offering a feedback loop for the intelligent control system and enhancing the system's adaptability and maintenance efficiency. The overall solution balances high energy dissipation, lightweight structure, and maintainability, making it suitable for complex operating conditions such as high-frequency impacts and repeated loading.

[0072] In this embodiment, the integrated bottom support structure effectively solves the problem of insufficient dissipation of residual impact energy. Its core lies in utilizing the synergistic effect of the honeycomb metal structure and the gradient foam metal to achieve gradient energy absorption and improve structural stability. Specifically, the introduction of the bottom support structure directly targets the energy transfer path after the buffer damping layer treatment. The design of the honeycomb metal structure is based on the distribution characteristics of impact energy; its porous geometry can disperse stress through controllable deformation when subjected to residual impact, avoiding structural failure caused by localized stress concentration. The gradient foam metal filled within the honeycomb metal structure is designed with a density gradient according to energy attenuation requirements, allowing impact energy to be gradually dissipated from high-density areas to low-density areas during transmission. This gradient characteristic stems from adaptation to the dynamic characteristics of impact loads, effectively smoothing the energy absorption curve and preventing abrupt energy transfer. The splicing method between the upper surface of the honeycomb metal structure and the lower surface of the buffer damping layer ensures the continuity of the energy transfer path. This splicing is based on the real-time state of the output energy of the buffer damping layer, enabling the residual impact energy to be seamlessly transferred to the bottom support structure, thereby avoiding energy reflection or loss at the interface and enhancing the overall synergy of the multi-level response. Overall, this technology integrates the residual energy absorption process into the hierarchical system of the inter-hull protection structure through deep coupling of structural design and material properties, significantly improving the integrity and robustness of the impact response.

[0073] In this embodiment, the signal monitoring module 201 includes an impact recognition unit and a signal output unit.

[0074] The impact identification unit is used to acquire pressure sensing information of each surface area in the inter-hull protection structure in real time; wherein, the pressure sensing information includes the regional location information and surface pressure value of the surface area.

[0075] The signal output unit is used to determine that any surface area is impacted when the surface pressure value exceeds a preset pressure threshold. Then, the region location information of the surface area is used as the impact region location information and the surface pressure value of the surface area is used as the impact pressure value to generate the impact signal of the inter-hull protection structure.

[0076] according to Figure 1 The shock resistance control method shown and Figure 2In the shock-resistant control system shown in this embodiment, a main-chain thermoresponsive liquid crystal elastomer precursor solution is selected. Carbon nanotubes are doped to enhance the electrothermal response rate and conductivity, forming highly responsive continuous fibers. These fibers are then woven into a layered mesh to obtain multiple fiber meshes. Each of these fiber meshes is embedded into an elastic fiber partition within a flexible polymer substrate. Flexible conductive electrodes or optical fiber channels are integrated within each fiber mesh to obtain an intelligent elastic buffer layer. Next, a magnetorheological fluid with a 35% iron-based particle volume fraction is dispersed in a silicone oil matrix and injected into a flexible encapsulation cavity formed based on heat sealing and thermoplastic polyurethane. A flexible printed circuit board electromagnetic coil with a 50Ω resistance and 60 turns is embedded within the flexible encapsulation cavity to ensure a magnetic field excitation response time of less than 10 milliseconds, thereby forming a buffer damping layer through the multiple flexible encapsulation cavities. Finally, a honeycomb metal structure is formed using a 1.2mm thick aluminum alloy honeycomb structure. Each cell in this honeycomb metal structure has a unit size of 10×10mm and is filled with foam metal. The structure is processed using laser cutting and welding, and integrates a pressure-sensitive thin-film sensor. A smart control system is then built around an STM32F407 microcontroller, integrating data from a triaxial high-sensitivity accelerometer and a pressure sensor. Pulse width modulation controls the electrothermal heating module of the intelligent elastic buffer layer and the electromagnetic drive module of the buffer damping layer to achieve rapid energy absorption response after impact recognition. The intelligent elastic buffer layer, buffer damping layer, and support structure are sequentially stacked using a flexible adhesive to complete the overall system assembly. After power-on self-test, the response speed and energy absorption performance are tested.

[0077] In this embodiment, when an impact load is applied to a surface of the interplane protection structure, the pressure-sensitive thin-film sensor of the bottom support structure and the accelerometer of the intelligent control system synchronously capture the impact signal and transmit the acceleration data to the STM32F407 control core in real time. The control core analyzes the impact parameters to determine the impact intensity and quickly triggers the response mechanism in the corresponding area: the flexible conductive electrode of the intelligent elastic buffer layer receives the pulse-width modulated heating signal, and the elastomer fiber is rapidly heated through the electrothermal conversion of carbon nanotubes, generating directional contraction deformation within milliseconds. The impact stress is dispersed through geometric reconstruction, and part of the impact energy is actively absorbed. At the same time, the electromagnetic coil of the buffer damping layer is energized to generate a magnetic field, causing the iron-based magnetorheological fluid in the cavity to instantly change from a liquid state to a near-solid state, forming a high-damping barrier to block the propagation of the shock wave, and dissipating a large amount of energy through viscosity abrupt change. With the synergistic effect of the two layers, combined with the elastic deformation and support of the bottom aluminum alloy honeycomb structure, efficient impact protection against impacts is achieved between the ship's sides. The entire response process, from signal acquisition to energy dissipation, takes only tens of milliseconds, ultimately achieving structural protection.

[0078] In another embodiment of this invention, a side-chain type photoresponsive liquid crystal elastomer is selected. Graphene quantum dots are doped to improve light absorption efficiency, and ultraviolet optical fibers are integrated to achieve regional light-controlled actuation, resulting in an intelligent elastic buffer layer. The buffer damping layer consists of nickel-based particles (40% by volume) dispersed in a mineral oil matrix and encapsulated in a flexible polyimide encapsulation cavity. An 80-turn copper foil-wound electromagnetic coil with a resistance of 30Ω is embedded within, resulting in an extremely short magnetic field response time. The underlying support structure is a titanium alloy honeycomb structure, embedding a PVDF piezoelectric thin-film sensor. The intelligent control system uses an STM32L432KC microcontroller as its core, integrating a MEMS accelerometer. An optical power regulator and a constant current source control the intelligent elastic buffer layer and the buffer damping layer, respectively. When an impact occurs, the PVDF piezoelectric sensor and the MPU6050 synchronously acquire stress wave and acceleration data, and the STM32L432KC determines the impact in a very short time. In response to impact, the system triggers the optical fiber to output ultraviolet light, causing the elastic fibers in the corresponding area to bend and deform, thus dispersing energy through morphological adjustment; at the same time, current is passed through the copper foil coil to generate a magnetic field, which increases the viscosity of the nickel-based magnetic flux fluid, forming a damping layer to dissipate energy, and the remaining energy is absorbed by the elastic deformation of the titanium alloy honeycomb, achieving graded buffering.

[0079] In another embodiment of this invention, a smart elastic buffer layer is provided on the topmost layer. This layer uses a main-chain thermotropic liquid crystal elastomer material, with carbon nanotubes doped in the precursor solution to improve thermal conductivity. The liquid crystal elastomer is fibrousized and woven into a mesh structure, embedded in a silicone substrate, with a nickel-chromium heating wire integrated on the surface to achieve regional electrothermal control. Under the action of a control signal, this layer can rapidly heat up and undergo orientation contraction or bending deformation, changing its geometric configuration to disperse impact stress and absorb some energy. The middle layer is a buffer damping layer, which is composed of a flexible encapsulation cavity made of high-strength steel, filled with a cobalt-based magnetorheological fluid dispersed in a synthetic oil matrix. A flexible printed circuit board electromagnetic coil is installed inside the cavity, with a coil resistance of approximately 45 Ω and approximately 50 turns. Driven by an external current, the electromagnetic coil can generate a magnetic field on the order of milliseconds, causing the magnetorheological fluid in the cavity to rapidly change from a low-viscosity state to a high-viscosity state, forming a high-damping barrier. Through viscous dissipation and friction, it effectively attenuates impact energy and delays the further propagation of the shock wave. A bottom support structure with a porosity of approximately 70%, formed using magnesium alloy foam technology, is located on the lower side of the buffer damping layer, exhibiting lightweight and high specific strength characteristics. Under impact loads, the internal pore walls of the foam gradually buckle and undergo progressive collapse, absorbing impact energy in multiple stages while maintaining the stability of the overall structure. An embedded fiber Bragg grating sensor is used to monitor strain distribution in real time and transmit the signal to the control module. The intelligent control module, based on an STM32H750VB microcontroller, integrates a fiber Bragg grating sensor demodulation module and an ADXL355 triaxial accelerometer. Upon impact, the fiber Bragg grating sensor monitors the strain field through wavelength drift, while the ADXL355 acquires the acceleration signal; both data are transmitted to the control core in real time. The control module determines the impact intensity and affected area in a very short time and drives the nickel-chromium heating wire and flexible electromagnetic coil respectively, causing the intelligent elastic buffer layer and the buffer damping layer to rapidly generate a coordinated response. Combined with the progressive collapse of the magnesium alloy foam, this achieves multi-level energy dissipation.

[0080] In another embodiment provided in this example, the intelligent elastic buffer layer uses a photothermal dual-response liquid crystal elastomer, doped with gold nanorods to enhance photothermal conversion, and is made into nanofibers by electrospinning. After being randomly stacked into a film, it is embedded in a polyimide substrate, and an ITO transparent electrode is integrated to achieve electrothermal assistance. The buffer damping layer uses 42% iron-cobalt alloy particles dispersed in silicone oil and encapsulated in a flexible encapsulation cavity formed by thermoplastic polyurethane. It has a built-in silver paste printed electromagnetic coil with a resistance of 35Ω and 70 turns, resulting in an extremely short response time. The bottom support structure is a carbon fiber honeycomb structure, integrating a flexible capacitive strain sensor. The intelligent control system is based on an STM32F767IGT6, integrating an accelerometer sensor, and achieving multi-mode drive through a laser driver and pulse width modulation controller. When an impact occurs, the capacitive sensor and LIS3DH synchronously collect strain and acceleration data, and the control core determines the impact type in a short time. For high-frequency impacts, the system prioritizes laser irradiation of the intelligent elastic buffer layer. The photothermal conversion of gold nanorods causes local fibers to expand radially in a short time, buffering energy through volume change. At the same time, current is passed through the silver paste electromagnetic coil to generate a magnetic field, and the viscosity of the iron-cobalt alloy magnetic flux fluid jumps to dissipate energy. The carbon fiber honeycomb absorbs the remaining energy through structural deformation, achieving broadband impact protection.

[0081] This embodiment provides a multi-level response-based shock resistance control method and system. First, a collaborative response mechanism between an intelligent elastic buffer layer and a damping buffer layer is introduced. The intelligent elastic buffer layer achieves active deformation energy absorption, while the damping buffer layer provides viscosity-adjustable damping, constructing a dual-channel shock resistance control mode to improve energy dissipation efficiency and structural response speed. The combination of the intelligent elastic buffer layer and the damping buffer layer can dynamically allocate energy absorption paths according to the impact level. Specifically, light to moderate impacts are absorbed by the rapid deformation of the intelligent elastic buffer layer, while high-intensity impacts are supported by the high-damping damping layer, forming a graded protection collaborative mechanism that enables progressive collapse and energy release, effectively improving the shock resistance stability and durability of the inter-hull protection structure. Second, impact information is collected in real time through a multi-source sensor network, and state recognition and graded response control are achieved based on an embedded control core. This provides intelligent judgment and autonomous adjustment capabilities, automatically optimizing the response strategy according to the impact intensity and frequency. The control method employs a modular design, with sensors, actuators, and controllers operating independently, with clearly defined functions and unified interfaces. Compared to existing complex and fixed-function shock-resistant systems, this system is easier to integrate into hull sections of different sizes and structural types, offering excellent adaptability and maintainability. Finally, the response time of the intelligent elastic buffer layer can be controlled within hundreds of milliseconds, while the response of the damping layer is in the millisecond range, resulting in extremely high timeliness of the overall system's impact response. Simultaneously, a state feedback mechanism (displacement, magnetic field strength, etc.) enables dynamic correction of control precision, avoiding over-response or response lag, thus improving shock-resistant stability and reliability.

[0082] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A shock-resistant control method based on multi-level response, characterized in that, Applicable to inter-hull protection structures; the inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer; the method includes: Real-time acquisition of impact signals acting on the inter-hull protective structure; The deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer are determined based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer. The deformation adjustment information and the damping force adjustment information are used to control the inter-hull protection structure to perform structural adjustments in order to achieve the impact resistance response of the inter-hull protection structure to the impact signal.

2. The shock resistance control method based on multi-level response according to claim 1, characterized in that, The real-time acquisition of impact signals acting on the inter-hull protective structure includes: Real-time acquisition of pressure sensing information for each surface region in the inter-hull protection structure; wherein, the pressure sensing information includes the regional location information and surface pressure value of the surface region; For any given surface region, when the surface pressure value exceeds a preset pressure threshold, it is determined that the surface region has been impacted. The region location information of the surface region is then used as the impact region location information, and the surface pressure value of the surface region is used as the impact pressure value, in order to generate the impact signal of the inter-hull protection structure.

3. The shock resistance control method based on multi-level response according to claim 1, characterized in that, The intelligent elastic buffer layer includes a flexible substrate and several elastic fiber partitions embedded in the flexible substrate; wherein each elastic fiber partition includes multiple elastic fibers woven into a mesh.

4. The shock resistance control method based on multi-level response according to claim 2, characterized in that, The buffer damping layer includes several encapsulation cavities; each of the encapsulation cavities is filled with magnetorheological fluid; and each of the encapsulation cavities is embedded with an electromagnetic coil.

5. A shock-resistant control method based on multi-level response according to any one of claims 2-4, characterized in that, The step of determining the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer includes: Determine the location of the impact zone and the impact pressure value from the impact signal; Based on the impact area location information, the fiber partition location information of each elastic fiber partition, and the cavity location information of each encapsulation cavity, the target elastic fiber partition and the target encapsulation cavity to be adjusted are determined. Obtain the fiber performance parameters of the elastic fibers within the target elastic fiber partition, and obtain the type and intensity of the driving signal corresponding to the target elastic fiber partition based on the fiber performance parameters and the impact pressure value; The impact level of the impact signal is determined based on the impact pressure value and a plurality of preset impact pressure thresholds, and the current value of the target packaging cavity is determined based on the impact level and the magnetorheological performance parameters of the magnetorheological fluid.

6. The shock resistance control method based on multi-level response according to claim 5, characterized in that, The step of controlling the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to achieve the impact resistance response of the inter-hull protection structure to the impact signal, includes: The driving signal for the target elastic fiber partition is generated according to the type and the intensity. The driving signal is sent to the target elastic fiber partition according to the fiber partition location information, so that the elastic fiber undergoes reversible deformation. By pre-absorbing the impact energy corresponding to the impact pressure value through the deformed target elastic fiber partition, the intelligent elastic buffer layer achieves a primary impact resistance response to the impact signal.

7. The shock resistance control method based on multi-level response according to claim 5, characterized in that, The step of controlling the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to achieve the impact resistance response of the inter-hull protection structure to the impact signal, includes: The current corresponding to the electromagnetic coil inside the target packaging cavity is generated according to the current value, and the current is delivered to the electromagnetic coil to make the electromagnetic coil generate a magnetic field. The magnetic field controls the magnetorheological fluid in the target packaging cavity to change from a liquid state to a near-solid state, thereby altering the damping state of the target packaging cavity. The target encapsulation cavity, after the damping state change, performs secondary absorption of the impact energy corresponding to the impact pressure value, thereby realizing the multi-level impact resistance response of the buffer damping layer to the impact signal.

8. A shock-resistant control system based on multi-level response, characterized in that, Applicable to inter-hull protection structures; the inter-hull protection structure includes an intelligent elastic buffer layer and a buffer damping layer; the system includes a signal monitoring module, a structural adjustment module, and an anti-shock response module; The signal monitoring module is used to collect impact signals acting on the inter-hull protective structure in real time; The structural adjustment module is used to determine the deformation adjustment information of the intelligent elastic buffer layer and the damping adjustment information of the buffer damping layer based on the impact signal, the buffer structure parameters of the intelligent elastic buffer layer, and the damping structure parameters of the buffer damping layer. The shock resistance response module is used to control the inter-hull protection structure to perform structural adjustments based on the deformation adjustment information and the damping force adjustment information, so as to realize the shock resistance response of the inter-hull protection structure to the impact signal.

9. The shock-resistant control system based on multi-level response according to claim 8, characterized in that, The inter-hull protection structure also includes a bottom support structure; wherein the bottom support structure includes a honeycomb metal structure and gradient foam metal filled in the honeycomb metal structure; the upper surface of the honeycomb metal structure is spliced ​​with the lower surface of the buffer damping layer.

10. The shock-resistant control system based on multi-level response according to claim 8, characterized in that, The signal monitoring module includes an impact recognition unit and a signal output unit; The impact identification unit is used to acquire pressure sensing information of each surface area in the inter-hull protection structure in real time; wherein, the pressure sensing information includes the area location information and surface pressure value of the surface area; The signal output unit is used to determine that any surface area is impacted when the surface pressure value exceeds a preset pressure threshold. Then, the region location information of the surface area is used as the impact region location information and the surface pressure value of the surface area is used as the impact pressure value to generate the impact signal of the inter-hull protection structure.

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