112 results about "Structural coupling" patented technology

The invention discloses an intelligent control system for a diamond grain curing sintering furnace, belongs to the technical field of industrial furnace control, and aims at solving the problems that existing sintering control depends on experience, process monitoring is not comprehensive, real-time optimization is difficult to achieve, and product quality consistency is difficult to guarantee. The system comprises a sensor module, a multispectral imaging device, a data preprocessing module, a liquid neural network module, an attention fusion module, a user interaction module, a thermal structure coupling module and a real-time feedback control module. A liquid neural network is used for processing time sequence dynamics, multi-dimensional features such as temperature, humidity, spectrum and mechanical force are fused through a multi-head attention mechanism, and in combination with an internal state result of user input and thermal structure coupling analysis, a real-time feedback control module adopts a closed-loop strategy to calculate optimal firing parameters and generate a control signal; and the actuating mechanism is driven to perform self-adaptive adjustment.

According to the intelligent radiator welding method and system based on welding residual stress control, temperature field data of a welding area are obtained through a sensor array, a temperature gradient mapping image is generated, residual stress distribution is determined through heat-structure coupling finite element analysis, and a thermal expansion coefficient and a welding speed parameter are extracted; when the deviation exceeds a deviation threshold value, the heat input power and the welding speed are adjusted, parameter combination is optimized, heat input distribution is redistributed, new temperature field distribution is generated by adopting a power segmentation adjustment algorithm, residual stress relief data are extracted, and if the stress reduction rate is insufficient, the welding speed is adjusted; if yes, cooling parameters are adjusted for thermal stress release, through finite element iteration fed back in real time, a process correction scheme is generated, full-process simulation verification is conducted, and the fatigue life and the thermal conductivity index are obtained. Accurate control over the residual stress in the welding process is achieved, and the intelligent welding quality and the structural stability are improved.

The invention discloses a technological method for forming an aluminum alloy shell through selective laser melting. The technological method comprises the steps that S1, model treatment is conducted; s2, supporting design; s3, carrying out analog simulation; s4, selective laser melting forming; s5, post-processing is carried out; s6, quality detection; according to the method, process simulation analysis is carried out on the additive manufacturing process risk, thermal-structure coupling field simulation calculation is carried out on a component, and deformation, temperature and stress distribution of all stages such as printing, substrate cutting and support removal are analyzed; time and economic cost can be saved, and the method can also be used for exploring process parameters and formulating an optimal process scheme; by means of the reversible deformation compensation technology, the printing problem is effectively reduced, the printing precision is improved, and when the part size precision requirement is high, the technology can assist printing and accurate forming; the method disclosed by the invention can be popularized and applied to other parts formed by selective laser melting, and has wide social benefits and economic benefits.

The invention discloses a phased array ultrasonic detection rough surface coupling agent dynamic supplementing and sealing system which comprises a flexible sealing structure, a coupling agent supply unit, a pressure feedback control unit and a self-adaptive attaching structure. A flexible sealing structure is adopted to form a continuous liquid coupling film between the probe and the detected joint, and the coupling agent supply unit actively supplies liquid to keep the thickness of the liquid coupling film stable in a range of 0.5-1.5 mm so as to reduce ultrasonic energy loss and a blind area; in addition, the coupling agent liquid can be controlled not to leak or the leakage can be controlled within an acceptable range through the sealing mechanism, and the coupling agent supply unit is matched to continuously and stably supply the liquid, so that the coupling layer is ensured to be uninterrupted in the scanning process.

The present invention discloses a gait optimization method and system for an on-track walking assembly robot, the method comprising: constructing a robot-structure coupling dynamics model and obtaining the coupling relationship between the robot joint motion and the structural vibration; constructing a joint trajectory function based on the sum of a quintic polynomial and a finite-term cosine Fourier series; constructing an objective function according to the relationship between structural vibration and joint motion; finding the joint trajectory parameters that minimize the objective function based on a PSO algorithm, and substituting the parameters into the joint trajectory function to obtain the joint trajectory. The system comprises: a coupling dynamics model construction module, a joint trajectory function construction module, an objective function construction module, and an optimization module. By using the present invention, the gait trajectory during the robot motion process is optimized, which helps to reduce the force on the structure caused by the robot motion, so that the residual vibration generated by the structure is minimized. The present invention can be widely used in the field of robot control.

The invention provides a high aspect ratio wing topological optimization method considering pneumatic-structure coupling. The method comprises the following steps: establishing a pneumatic-structure strong coupling topological optimization model; performing finite element analysis to obtain an original variable field of the high aspect ratio wing; generating a filtering variable field and a projection variable field; deformation displacement of each finite element unit is obtained based on a UMMI material interpolation model; establishing information transmission, structure displacement response, aerodynamic load transmission and aerodynamic load updating strategies under pneumatic-structure coupling, and analyzing and updating the aerodynamic load; according to the method, manufacturing constraints such as geometric nonlinearity, multi-material layout and wing rib orientation size are comprehensively considered, design variables in an original variable field are subjected to iterative optimization solution, a wing optimization configuration is obtained, the three core problems of calculation distortion, performance deviation and manufacturing difficulty in lightweight design of the high aspect ratio wing are successfully solved, and the method is suitable for the lightweight design of the high aspect ratio wing. And the comprehensive performance and economical efficiency of the aircraft are remarkably improved.

The invention discloses a lightweight piston thermal-structure coupling stability gradient design method, and relates to the technical field of internal combustion engine pistons, and the lightweight piston thermal-structure coupling stability gradient design method comprises the following steps: constructing an asymmetric load adaptive gradient structure, establishing a multi-physical field coupling stability criterion system, and implementing an intelligent response type gradient design process; according to the method, the limitation of traditional symmetric design and static analysis is broken through by constructing an asymmetric load adaptive gradient structure, establishing a multi-physics coupling stability criterion and combining an intelligent response type closed-loop design process based on a convolutional neural network, and the stability of the multi-physics coupling stability criterion is improved by utilizing mechanisms such as negative Poisson's ratio dynamic softening, inertial mass tuned damping and cross-scale interface strengthening. And deformation energy homogenization and dynamic stiffness self-adaptive regulation and control are achieved, the problems of local-overall response mismatch and steady-state-dynamic model disjunction are solved, real-time feedback regulation is introduced for the first time, and the thermal-structural coupling stability of the lightweight piston under the asymmetric working condition is improved through structural function integration.

The invention relates to the technical field of ultra-high-speed motor design, fluid mechanical engineering and electromagnetic-structure coupling, in particular to an innovative structure-electromagnetic coupling design of a centrifugal hydrogen circulating pump driven by an ultra-high-speed permanent magnet motor. The integrated coupling rotor system is formed by rigidly connecting a permanent magnet motor rotor and a centrifugal impeller through conical surface interference and key groove positioning, a rotor iron core is formed by laminating 0.2 mm ultrathin silicon steel sheets (35W250), and impeller blade molded lines are optimized based on electromagnetic force harmonic characteristics (the number of blades is equal to the number of motor poles + / -1); the coupling matching degree is remarkably improved: through structure-electromagnetic parameter collaborative optimization, the comprehensive efficiency of the system reaches 85% or above, and is improved by 12%-15% compared with that of a separation design; an anti-resonance damping module is combined with a frequency avoidance design, and the vibration acceleration in an ultra-high-speed interval is smaller than or equal to 8 g and is reduced by 60% or above compared with a traditional design; the torque-load matching time is less than or equal to 0.3 s when the flow is suddenly changed, overcurrent impact or surge is avoided, and the dynamic requirement of a fuel cell system is met.

The quick connector coupling an offshore floating structure to a pre-laid mooring system comprises a base structure (6) coupled to an upper body (2) of the offshore floating structure, a mooring interface (13) attached to a lower body (3) of the pre-laid mooring system, and a locking mechanism comprising a grooved surface (16) formed in the mooring interface (13), locking claws (10) movably mounted on the base structure (6), and a fluid-dynamic device associated to the base structure (6) and operatively connected to move the locking claws (10) between a release position in which the locking claws (10) are withdrawn from the grooved surface (16) of the mooring interface (13) and a lock position in which the locking claws (10) are meshed with the grooved surface (16) of the mooring interface (13).

An adjustable roller assembly for a linear rail system carriage has an indexing collar, an eccentric bushing, an adjustable roller, a suspension element, and an adjustment collar. The indexing collar has a first indexing structure. The adjustable roller is rollably mounted to a roller side end of the eccentric bushing. A rolling axis of the adjustable roller is offset from the axis of the adjustable roller assembly. The suspension element is mounted in axial alignment with an adjustment side end of the eccentric bushing. The adjustment collar has a circumferential flange having a second indexing structure. The first indexing structure and the second indexing structure are coupled to rotationally couple the adjustment collar with the suspension element.

The invention relates to the technical field of intelligent manufacturing control, in particular to an MEMS device process error simulation and feedback control system which comprises a response data acquisition module, a coupling relation analysis module, a change parameter extraction module, a model construction module and an instruction generation module. According to the method, dynamic time sequence data of multi-point displacement and stress in the device are collected in real time in the whole process of the manufacturing process, the response relation between the dynamic time sequence data is deeply analyzed, traditional macroscopic measurement of static geometric errors can be exceeded, and in other words, the dynamic time sequence data are obtained from mechanical behaviors in the device. By calculating the ratio of the direction consistency to the change rate of stress vectors among different structural parts, the coupling effect strength among the stress vectors is quantified, the key transmission path of the process stress is identified, and the internal mechanism of how local stress finally causes performance deviation of a core functional area through structural coupling is revealed. For example, how stress concentration on the supporting arm specifically causes displacement and angle inclination of the boundary of the capacitor plate can be determined.

This invention discloses a bridge-tunnel co-construction method based on adaptive construction parameters, specifically relating to the field of bridge-tunnel collaborative construction technology. It collects disturbance response parameters such as foundation settlement rate, pile foundation lateral displacement, and tunnel arch convergence rate to form a set of construction disturbance parameters. This set is input into a structural coupling identification model to extract the pile-arch relative stiffness ratio, pile end support reaction difference, and tunnel deformation anomaly values, constructing a structural coupling state feature vector. Based on this, an optimal construction sequence combination strategy is matched to implement bridge-tunnel coupled construction. During construction, the disturbance response parameters are updated in real time, compared with historical curves, and the disturbance offset is calculated. When the offset exceeds a preset tolerance threshold, iterative updates of features and strategies are automatically triggered until the disturbance stabilizes. This method enables dynamic adjustment of construction sequences and structural collaborative control of bridge-tunnel connection sections, significantly improving the adaptability, safety, and construction efficiency of bridge-tunnel co-construction projects under complex geological conditions.

A system for the distribution and transmission of loads from elevated structures onto existing supporting surfaces, in particular inclined ones, comprising a plurality of bases (1), each base (1) comprising at least one distribution element (2), which is substantially flat and lies on a supporting surface, a distribution beam (4) having an axis X, said beam (4) being placed over said plurality of bases (1) and comprising, on the top thereof, at least one fixing point (41) adapted for coupling with an overlying elevated structure, a number of upper joining elements (6) equal to the number of distribution elements (2) with a first end coupled below to said beam (4), an axis (A) which is substantially perpendicular to the axis (X) of said beam (4) and a joining surface (6a), on a second end of said upper joining element (6) opposite said first end, a lower joining element (3) or a group of lower joining elements (3) for each upper joining element (6), each lower joining element (3) comprising a first end coupled above to said distribution element (2), a second end opposite said first end and a joining surface (3a) on said second end, said system being characterised in that said upper joining element (6) and said lower joining element (3) or group of lower joining elements (3) are coupled at said respective joining surfaces (3a, 6a), and in that it comprises means for the relative rotation of said axis (A) with respect to an axis perpendicular to the plane of said distribution element (2).

The application discloses a rotor coupling dynamics calculation method of complex three-dimensional shape layout. A coordinate conversion relationship caused by a front protrusion / after-sweeping / downward-reversing configuration is established; nonlinear elastic deformation of elastic blades waving, oscillating and twisting and nonlinear coupling relationship among them are described; nonlinear motion caused by the complex three-dimensional shape layout is described based on the coordinate conversion relationship and the nonlinear coupling relationship; and the relationship among strain energy, kinetic energy and virtual work of external force of the rotor is established based on the Hamilton principle according to the description of the nonlinear motion, and a finite element method of a 15-degree-of-freedom beam element is used to establish a rotor dynamics equation. The application can effectively reflect the structural coupling characteristics and coupling degree of the waving-torsion direction caused by the front / rear sweep of the blade tip, effectively reflect the structural coupling characteristics and coupling degree of the oscillation-torsion direction caused by the upward / downward reversal of the blade tip, and effectively reflect the rotor dynamics characteristic behaviors caused by the three-dimensional shape of the blade.

The invention provides a heavy type gas turbine gas compressor aerodynamic strength vibration structure coupling design method and system. The method comprises the steps that a first through-flow parameter and a first blade profile parameter of a gas compressor are determined according to aerodynamic performance indexes; optimizing a first flow parameter and a first blade profile parameter of the gas compressor according to the structure manufacturing and assembling index and the aerodynamic performance index to obtain a second flow parameter and a second blade profile parameter of the gas compressor; optimizing the geometric parameters of the blade root of the gas compressor according to the strength vibration life index and the structure manufacturing and assembling index, and designing and optimizing the geometric parameters of the blade locking structure of the gas compressor to obtain the optimized geometric parameters of the blade root and the blade locking structure of the gas compressor; and designing the heavy gas turbine compressor based on the second through-flow parameter and the second blade profile parameter. According to the technical scheme provided by the invention, the design efficiency is improved, the performance balance is optimized, and meanwhile, the design cost is reduced.

The present invention provides a filter and its coupling structure, which is installed in a cavity. A cover plate is covered on the cavity, and at least two resonant rods are also provided in the cavity. The coupling structure includes a coupling plate, and the coupling plate is fixed on the side of the cover plate close to the cavity and is located between two adjacent resonant rods. In the coupling structure of the present invention, the coupling plate is directly attached and fixed to the inner side of the cover plate. The energy at the top of the resonant rod is the largest. Therefore, setting the coupling plate on the inner side surface of the cover plate is to achieve cross-coupling at the top of the resonant rod. Only a very small coupling area is required to meet a strong coupling amount. Compared with the flying rod structure that uses the side surface of the resonant rod to achieve coupling in the prior art, it does not need to make the coupling disk very large to achieve the same coupling amount. Moreover, the fixed structure is stable by using the attachment and fixing method, the structure is simpler, the requirement for processing accuracy is not high, and the production and processing efficiency is greatly improved and the production cost is reduced.

The invention discloses a device capable of localizing a surface acoustic wave center. The device comprises a device body and hard boundaries arranged on the upper surface and the lower surface of the device body. The device body comprises a plurality of primitive cells arrayed in the Z direction and an A-layer assembly arranged on the lower surface of the bottommost primitive cell. Each primitive cell comprises a B-A coupling layer assembly, a B-layer assembly, an A-B coupling layer assembly and an A-layer assembly which are sequentially stacked from bottom to top; pi phase difference delay exists between the A-layer assembly and the B-layer assembly. The primitive cell is constructed to be composed of a plurality of non-periodic structural units; the structural unit comprises a B-A coupling unit and a structure B which are arranged from bottom to top, the coupling strength of the A-B coupling unit and the coupling strength of the structure A are different, and the coupling strength of the A-B coupling unit and the coupling strength of the B-A coupling unit are different; rotation parameters are introduced into an X-Y plane in a three-dimensional space where the device is located, so that the primitive cell center has a vortex center, and the period of the primitive cell in the Z direction is of a limited size. Through the device, a zero-dimensional topological angular state can be formed, and surface acoustic waves are localized in the center of the top surface of the device.

The invention discloses a method for preventing a gas atomization nozzle from being blocked by optimizing the coupling relation between atomization pressure and a flow guide pipe structure, efficient and continuous atomization is achieved by matching the pore diameter (3-6 mm) of a flow guide pipe, the shrinkage angle (30-60 degrees), the tail end platform width (smaller than or equal to 1 mm) and the atomization pressure (2.5-4.5 MPa) and combining a high-heat-resistant ceramic material (ZrO2 / SiC) and technological parameter optimization (GMR = 1.5-1.7, and the melt temperature is 1500-1650 DEG C). According to the method, the nozzle blocking risk is remarkably reduced, the powder D50 is 21-25 microns, the satellite powder proportion is smaller than or equal to 5%, the equipment maintenance cost is reduced by 20%, and the method is suitable for industrial production of high-precision metal powder.

The invention relates to a transmission unit (12) for adjusting a headlight, comprising a flexible shaft (22) and a fixing unit (16) having two end regions and an axis of rotation, the first end region being provided with a positive locking structure (18) for coupling to a drive positive locking structure (14e) of an adjusting element to be driven, the second end region being provided with a positive locking structure (18) for coupling to a drive positive locking structure (14e) of the adjusting element to be driven. Therefore, the rotating motion around the rotating axis can be transmitted; wherein the fixing unit (16) is axially and fixedly connected to the flexible shaft (22) in a second end region in order to achieve a synchronous rotation in such a way that a rotational movement can be transmitted from the flexible shaft (22) to the positive locking structure (18). The invention is characterized in that the fastening unit (16) comprises a snap sleeve (20) and a clamping sleeve (18), the snap sleeve (20) being configured such that it can be moved relative to the clamping sleeve (18) from an introduction position (EP) to a clamping position (KP) in a locking direction (AR), the locking direction (AR) being parallel to the axis of rotation; wherein the clamping sleeve (18) has a clamping wall which is provided with at least one cutout which is open on the end side and which has two cutout edges which face each other in the circumferential direction, a circumferential clamping region being formed axially at least in the region along the at least one cutout; wherein the clamping sleeve (18) has an open cross-section and forms an insertion width when the snap sleeve (20) is in an insertion position (EP), and wherein the snap sleeve (20) interacts with the clamping sleeve (18) in a clamping position (KP) such that the clamping sleeve (18) is inserted into the clamping position (KP) by an axial displacement of the snap sleeve (20). According to the invention, the distance between the cutout edges (19a, 19b) and the opening cross-section of the clamping sleeve (18) in the clamping region are at least partially deformed by the clamping wall to form a clamping width, which is reduced in size compared to the introduction width.

The present application relates to a kind of multi-foot coupling spoke and tire for non-pneumatic tire, spoke includes first leg structure, second leg structure and third leg structure, first leg structure and second leg structure are connected in V type, third leg structure is connected in V type with second leg structure, the end of third leg structure is equipped with first coupling surface, second coupling surface is equipped with in the opposite side surface of second leg structure with the side of third leg structure, first coupling surface can coincide with second coupling surface in translation process.The third leg structure of present application is arranged, and the third leg structure is coupled and connected with second leg structure, realizes circumferential coupling arrangement, substantially reduces the stress of originally bearing tension side, avoids interface and rubber body due to repeated tension and leads to the failure of adhesive surface, such as rubber fatigue tear phenomenon.The multi-foot coupling spoke improves the vertical stiffness of spoke, enhances the carrying capacity, further improves its carrying stability.

The application provides a double-line shield tunnel optimization design method, device and equipment considering soil-water-structure coupling, and relates to the technical field of underground engineering and tunnel engineering. The method comprises the following steps: obtaining a construction stage stratum displacement field considering double-line mutual disturbance; establishing a groundwater seepage model to obtain a pore water pressure distribution and determine a consolidation additional displacement field; superimposing the construction displacement field and the consolidation additional displacement field to obtain a comprehensive stratum displacement field; analyzing the internal force and deformation response of the lining structure based on the comprehensive stratum displacement field; determining design indexes according to the response; if the design indexes do not meet the preset allowable value, adjusting the design parameters and repeating the above steps until all indexes meet the requirements. The application takes the stratum displacement field as a unified carrier, realizes continuous transmission and closed-loop optimization of construction effect, consolidation effect and structure response, and improves the reliability and consistency of double-line shield tunnel design.

This invention discloses a coupling system and a swimming pool cleaning system. The coupling system includes a coupling unit and a position detection unit. The coupling unit includes a coupling component I and a coupling component II. One of the coupling components I and II includes a protruding structure, and the other includes a groove structure coupled to the protruding structure. The position detection unit assists in the coupling of the coupling components I and II. The coupling system of this invention has the advantages of simple structure and high coupling efficiency.

A microelectromechanical resonator is provided with two proof masses that are coupled with an anti-phase coupling structure that includes a seesaw lever and a force-displacement lever. Moreover, a joint extends from the seesaw lever to the force-displacement lever and a mass connection element extends from each proof masse to the adjacent lever.

The present application relates to a kind of mine dump truck wheel hub drive unit conceptual design method, to establish the technical system of the positive design of large tonnage mine dump truck wheel hub drive unit, including from the selection of structural form, the determination of transmission route, overall structure design and transmission system parameter optimization and component strength check and life calculation.Optimal scheme in feasible transmission route is explored according to accurate multi-working condition load spectrum, vehicle operation requirement, boundary condition of wheel hub drive, relevant component structure coupling requirement etc.;In the selected gear transmission route, according to the space arrangement of wheel hub drive, and the advantages and disadvantages of transmission form, determine to adopt transmission schematic diagram;According to the assembly condition of planetary row, adjacency condition, coincidence degree, concentricity condition and other constraint requirements, optimize the gear parameters with light mass and balanced load capacity under the premise of meeting the use strength.The complete design process of large tonnage mine dump truck wheel hub drive unit conceptual scheme is realized.

The invention relates to the technical field of pipeline repair, in particular to a drainage pipeline non-excavation repair optimization method based on hydraulic structure coupling simulation. Effective bearing wall thickness distribution description quantity and stress concentration coefficient distribution are introduced, modeling is conducted on the defect depth and defect length of the drainage pipeline in the axial direction, equivalent circumferential driving pressure is constructed by combining internal pressure, soil pressure, ground load and underground water pressure, and the thickness needing to be repaired is calculated point by point according to the axial position based on a judgment mechanism of the structural safety margin. According to the method, repair is in spatial self-adaptive distribution, the pertinence of structure safety is improved, on-way loss and local loss are calculated respectively in combination with the influence of repair thickness distribution on the inner diameter of the pipeline, and quantitative evaluation of the drainage capacity after repair is achieved; and through coupling optimization of structural safety constraint, hydraulic performance constraint and stability constraint, iterative adjustment of the repairing thickness is achieved.

An intermittent, injection port assembly includes first and second mating structures. The first mating structure includes a proximal end and a radially outer proximally facing step. An external thread is located between the proximal end and the radially outer proximally facing step. A first annular ratchet portion is located on the first mating structure. The second mating structure includes an annular radially inner distally facing step. An internal thread is located between the second mating structure distal end and the radially inner distally facing step. A second ratchet portion is located on the second mating structure. The first and second mating structures are coupled together by engagement of the internal thread with the external thread, such that the first and second annular ratchet portions prevent disengagement of the internal thread from the external thread after the first and second mating structures are coupled together.

A structural coupling for a suspension support system includes a coupling body (12) and a structural fastener (14) coupled to the coupling body and configured to secure the structural coupling to a structural support. A rod fastener (16) couples to the coupling body and defines at least one threaded opening (62A) configured to engage with a threaded rod. The rod fastener is selectively movable relative to the structural fastener to adjust an angle between an axis of the threaded opening and a longitudinal axis of the structural fastener.

A structural coupling for use within a laser system. In a preferred embodiment, a laser system for cleaning purposes would be displaced within a facility having dangerous conditions which could potentially damage the components of the laser, such as within a nuclear power facility. Protecting the laser components typically requires shielding which can fail, resulting in potential contamination of laser generator and components. The structural coupling would allow the laser to pass through a structural element to be used on the interior of the facility such that the end effector may be freely used within the facility while the mobile laser unit itself is safely stored outside of the dangerous area. The coupling allows the laser to pass through the structural element or opening to the end effector without exposing the laser itself to potential contamination.

The invention discloses a chip fan-out type packaging method and a chip fan-out type packaging structure, and aims to overcome the defect that a chip deviates in the curing process. According to the invention, a first platform is provided with a first bonding layer, and the first bonding layer is provided with a packaging assembly; the packaging assembly comprises a chip, a cofferdam structure and a plastic packaging layer, the cofferdam structure is arranged on a first bonding layer, the chip is arranged in the cofferdam structure, the active surface of the chip is attached to the first bonding layer, the plastic packaging layer is arranged on the passive surface of the chip and the outer surface of the cofferdam structure, and the cofferdam structure is arranged on the outer surface of the cofferdam structure. The plastic packaging layer fills a gap between the chip and the cofferdam structure, and the chip is embedded and packaged in the plastic packaging layer. Through structural coupling of the thinned chip and the photoetching cofferdam, chip limiting and high-precision position keeping in the plastic packaging process are considered.