33 results about "Wear simulation" patented technology

The invention relates to the technical field of fan blades, in particular to an automatic fan blade coating spraying method and system based on an unmanned aerial vehicle. Comprising the steps that a plurality of blade subareas are set according to the surface structure of the fan blade; according to a preset wear simulation model, an expected wear value of each blade sub-region is generated, and whether a primary spraying strategy is generated or not is judged according to the expected wear values; acquiring a spraying monitoring packet according to a preset feedback time node, and judging whether to correct the primary spraying strategy according to the spraying monitoring packet; the wear degree of each area of the fan blade is remotely predicted according to the wear simulation model in combination with environmental monitoring parameters, each wear point of the protective coating is accurately positioned in combination with image data acquired by the unmanned aerial vehicle, and accurate control of the flight position of the unmanned aerial vehicle is realized by acquiring feature points of each blade sub-area. And meanwhile, the flight speed and the coating flow of the unmanned aerial vehicle are dynamically corrected in time by periodically collecting the thickness of a spraying layer in the spraying process, and the spraying execution efficiency is improved.

This invention discloses a shoe wear simulation test circuit and method. The shoe wear simulation test circuit includes at least an EBS controller, and the shoe wear simulation test method includes: acquiring the current test voltage, providing the current test voltage to the EBS controller, and receiving the current feedback signal output by the EBS controller; determining the current theoretical remaining wear of the shoe based on the current test voltage; determining the current tested remaining wear of the shoe based on the current feedback signal; and determining the current test result based on the current theoretical remaining wear and the current tested remaining wear. The technical solution of this invention can realize the simulation test of shoe wear detection function in a laboratory environment, with short test time and high accuracy, thus improving the reliability and safety of the braking system.

The invention discloses a high-temperature friction testing device for a hydraulic slide valve. The device is composed of a valve element clamping module, a valve body mounting module, a vertical force applying module, a high-temperature heating module and a friction force applying module. The valve element clamping module is composed of a valve element, a valve element centering fixing column, a valve element fixing clamp, a valve element mounting rod and a mounting rod fixing shell. The valve body mounting module consists of an oil storage tank, an oil storage tank fixing plate and a valve body; the vertical force applying module comprises X, Y and Z three-axis guide rails driven by a motor, and pressure and friction force sensors; the high-temperature heating module surrounds the whole valve body and the valve core mounting part; the friction force applying module is driven by a motor to drive the oil storage tank to achieve axial movement of the valve body, and relative friction between the valve element and the valve body is achieved. The device can carry out friction tests of the hydraulic slide valve at different temperatures, realizes friction wear simulation of the hydraulic slide valve under multiple working conditions of oil environment, high temperature, pollution and the like, and provides data support for wear and degradation tests of the hydraulic slide valve.

This invention relates to the technical field of simulation analysis methods for downhole tools in oil and gas fields, and discloses a high-precision dynamic simulation analysis method for full-size drilling and milling tools based on an adaptive FEM-SPH coupled algorithm. The method includes three processes: model establishment, model solving, and performance evaluation. The first process is model establishment, which involves obtaining the geometric model of the drilling and milling tool through model reconstruction technology, and establishing a high-precision dynamic simulation analysis model for the full-size drilling and milling tool based on a wear prediction model and the adaptive SPH-FEM coupled algorithm. The second process is model solving, which involves solving the model after successively changing the drilling pressure and rotational speed, and batch processing the simulation results using Python. The third process is performance evaluation, which evaluates the performance of the drilling and milling tool from three aspects: efficiency, safety, and lifespan. This invention improves simulation accuracy from three aspects: geometric modeling, wear simulation, and solution algorithm, and evaluates the performance of the drilling and milling tool from three aspects: efficiency, safety, and lifespan.

The invention provides a steam generator pipeline wear simulation method, system and device and a storage medium, and relates to the technical field of physical testing. The simulation method comprises the steps that a fluid-solid coupling model of the heat transfer tube bundle and the foreign matter is established, and the foreign matter model is set to be a rigid body dynamic mesh model; solving the fluid-solid coupling model to determine stress information and motion information of the foreign body model under the action of the flow field; and based on the instantaneous speed and the resistance, the accumulated wear depth of the foreign matter to the heat transfer tube bundle under the action of the flow field is determined. According to the simulation method, the foreign matter stress information is captured in real time in the foreign matter movement process, the foreign matter movement information is updated, meanwhile, the abrasion rate of the heat transfer tube bundle is synchronously calculated based on the foreign matter stress and movement information, and full-process real-time simulation of lifting resistance, displacement and the abrasion rate of the foreign matter in the simulation process is achieved; and the accuracy and the reliability of a wear depth simulation result are greatly improved.

The invention provides a rigidity and strength fatigue wear simulation analysis method and equipment for a clutch separation device and a medium, and belongs to the technical field of vehicle clutches. Three-dimensional models of a separation shifting fork shaft, a rocker arm and a gearbox front shell are obtained, and a finite element model is established based on the three-dimensional models; defining a constraint set point, a surface grid set, a contact relation, a material attribute and a grid type; and applying a first load to the surface grid set to establish pre-contact, and then applying a second load to perform static simulation. Extracting stress data to determine a dangerous position, and extracting displacement data to calculate torsional rigidity. And based on the dangerous position and second load cyclic loading, fatigue safety coefficient distribution is obtained, and bushing wear data are extracted to evaluate the wear condition. The rigidity, the fatigue life and the lining abrasion performance of the separation device are evaluated synchronously through simulation, a stress danger area and an abrasion overrun area are positioned, data support is provided for structural optimization and maintenance period formulation, the reliability of the clutch is improved, and the service life of the clutch is prolonged.

The utility model provides a high and low temperature alternating environment wear simulation experiment machine which comprises a rack, and a heating mechanism, a wear mechanism, a blowing cooling mechanism and a clamping mechanism which are arranged on the rack, and the heating mechanism comprises an electromagnetic induction heater arranged on the rack; the abrasion mechanism comprises a grinding machine installed on the machine frame and a first driving mechanism connected with the grinding machine to drive the grinding machine to move up and down, the clamping mechanism comprises a clamp installed on the machine frame and a second driving mechanism driving the clamp to move, and the blowing cooling mechanism is installed on the machine frame and used for conducting blowing cooling on grid sections on the clamp. The high and low temperature alternating environment abrasion simulation experiment machine can consider factors such as reciprocating heating and cooling, temperature monitoring, contact load, mechanical abrasion and cyclic experiments, and can reduce actual working conditions of abrasion of quick-wear parts in metallurgical processes such as sintering and pelletizing in a high-precision manner, so that the influence effect of a coating technology on the service life of a grid section is verified.

The invention provides a simulation research method for wear resistance of a nano-diamond ceramic coating. The invention aims to solve the problem that the existing wear simulation depends on a user subprogram, needs to empirically zoom coefficients and causes unreliable results due to grid-physical mismatch. According to the method, on the basis of Abaqus software, a high-fidelity contact-wear coupling model is constructed, the size of a local grid is determined in combination with the Hertz contact theory, and multi-cycle automatic control is achieved through a native * STEP CYCLING instruction; meanwhile, differentiated wear parameters are defined for the two contact faces respectively, and a termination criterion based on the accumulated wear depth is introduced. By means of the technical scheme, high-precision, efficient and stable abrasion evolution simulation of the nano-diamond ceramic coating can be achieved without external programming.

The invention provides a wear simulation analysis method and device, electronic equipment and a storage medium, and relates to the technical field of simulation analysis. The method comprises the following steps: establishing a finite element model about a to-be-verified speed reducer shell and a to-be-verified planet row gear ring; based on the finite element model and preset wear control parameters, carrying out wear iterative simulation analysis, and determining an iterative wear result; and based on the iterative wear result, carrying out wear risk evaluation on at least one of the to-be-verified speed reducer shell and the to-be-verified planet row gear ring. Based on finite element modeling and iterative wear simulation analysis, dynamic quantitative characterization and risk evaluation of the wear of the rectangular spline contact part of the planet row type speed reducer are realized, potential defects can be found in advance in the design stage, and the research and development efficiency and the product reliability of the planet row type speed reducer are improved.

The application discloses a high-temperature friction testing device for a hydraulic slide valve. The device is composed of a valve core clamping module, a valve body mounting module, a vertical force applying module, a high-temperature heating module and a friction force applying module. The valve core clamping module is composed of a valve core, a valve core centering fixing column, a valve core fixing clamp, a valve core mounting rod and a mounting rod fixing shell. The valve body mounting module is composed of an oil storage tank, an oil storage tank fixing plate and a valve body. The vertical force applying module includes X, Y and Z three-axis guide rails driven by a motor, and pressure and friction force sensors. The high-temperature heating module surrounds the valve body and the valve core mounting part. The friction force applying module is driven by a motor to drive the oil storage tank to realize the axial movement of the valve body and the relative friction between the valve core and the valve body. The device can conduct the friction test of the hydraulic slide valve under different temperatures, realize the friction and wear simulation of the hydraulic slide valve under the working conditions of oil environment, high temperature and pollution and the like, and provide data support for the wear and degradation test of the hydraulic slide valve.

The invention provides a vehicle-mounted lens testing device, which belongs to the technical field of lens testing, and comprises a testing table, and also comprises a wear resistance testing assembly which is arranged at the inner side of the testing table and is used for carrying out wear resistance testing on a lens; the cleaning bin is arranged in one side, far away from the wear-resistant testing assembly, of the testing table; the abrasive belt cleaning assembly is arranged on the inner side of the cleaning bin and used for cleaning the surfaces of the multiple sets of abrasive belts in the abrasion resistance testing assembly. The impurity filtering assembly is arranged on the side, away from the abrasive belt cleaning assembly, of the cleaning bin and used for filtering impurities generated in the testing process; the impurity storage assembly is arranged on the inner side of the bottom of the test board and used for collecting filtered impurities; the four sliding rods are symmetrically and fixedly connected to the two sides of the top of the test board about the central axis of the test board; in the application, the test is closer to the actual use condition through diversified wear simulation, so that the wear resistance of the lens in different environments is comprehensively evaluated.

This invention relates to an automatic generation method for three-dimensional clothing patterns based on digital twins, belonging to the field of clothing technology. It involves reconstructing a digital twin model based on a real human body three-dimensional scan, constructing an initial finite element model of the three-dimensional clothing surface covering its surface; obtaining a flattened intermediate surface through stress field initialization and unfoldability optimization under physical constraints, and generating cut piece surfaces according to segmentation criteria; converting it into a two-dimensional pattern outline through discrete conformal mapping, and adding darts and seam allowance marks according to pattern-making rules; extracting dynamic stress and deformation data through virtual sewing and wearing simulation; if the fit and comfort threshold is not reached, feedback is provided to adjust constraints or segmentation criteria and iteratively optimize until the final pattern is output. This solves the technical problem of traditional solutions lacking a comprehensive evaluation mechanism that integrates ergonomics, fabric physical properties, and dynamic wearing behavior from the initial design stage, leading to repeated sampling and low efficiency.

The invention relates to a fire hose wear resistance detection device and method in the technical field of fire-fighting equipment detection, and the device comprises a case, and a center frame is fixedly installed in the middle of the inner wall of the case; the grinding mechanism is rotationally arranged on the inner wall of the center frame, and a rotating mechanism used for driving the grinding mechanism to rotate is arranged on the center frame; and a fire hose body penetrating through the grinding mechanism is arranged between the first cover cap and the second cover cap, and fixing pieces for sealing the fire hose body are arranged at one end of the first cover cap and one end of the second cover cap. According to the invention, a gap between the water hose and a friction part, which is easily generated by a negative pressure adsorption mode in the prior art, is effectively eliminated through quadruple guarantee, so that the abrasion simulation is highly consistent with the dragging abrasion state of the water hose in an actual fire scene, the accuracy and reliability of a detection result are greatly improved, and the accurate requirement of quality detection of the fire hose is met.

The invention discloses a wear prediction model construction method and device, a life prediction method and device, equipment and a medium. The method comprises the following steps: establishing a multi-physics field coupled friction pair wear simulation model, and obtaining interface wear data under different friction working condition parameters through simulation calculation so as to construct a wear database; the friction working condition parameters at least comprise bearing load, relative movement speed and friction time; and based on the wear database, a neural network algorithm is adopted to construct a wear prediction model with the friction working condition parameters as input and the wear thickness as output. According to the technical scheme, a high-precision and high-efficiency wear prediction model is constructed by fusing multi-physics field coupling simulation and a neural network algorithm, the problem that a traditional method depends on artificial experience and cannot realize full-life-cycle prediction is effectively solved, the accuracy and efficiency of wear life prediction are remarkably improved, and the service life prediction efficiency is improved. And a reliable technical support is provided for predictive maintenance of the friction pair.

The application relates to a fire hose wear resistance detection equipment and a detection method in the technical field of fire-fighting equipment detection, which comprises a case, a center frame fixedly installed at the middle of the inner wall of the case, a polishing mechanism rotationally arranged on the inner wall of the center frame, a rotating mechanism arranged on the center frame and used for driving the polishing mechanism to rotate, a first cap and a second cap, a fire hose body passing through the polishing mechanism arranged between the first cap and the second cap, and a fixing piece arranged at one end of the first cap and one end of the second cap and used for sealing the fire hose body. The fourfold guarantee effectively eliminates the gap between the fire hose and the friction component generated by the negative pressure adsorption mode of the prior art, ensures that the wear simulation is highly consistent with the actual fire scene hose dragging wear state, greatly improves the accuracy and reliability of the detection result, and meets the accurate requirement of fire hose quality detection.

The invention discloses a friction wear simulation test device for a bearing point contact pair. The oil collector is mounted on the horizontal workbench, and a bearing inner ring is arranged in the oil collector; the bearing inner ring driving mechanism is arranged on the outer side of the oil collector and used for driving the bearing inner ring to rotate around the axis of the bearing inner ring; the lever fixing device is mounted on the horizontal workbench; the fixing plate assembly is connected to the movable end of the lever fixing device and can transversely and vertically rotate relative to the axis of the bearing inner ring; and the ball assembly driving mechanism is arranged on the fixed plate assembly and comprises a servo motor II and a main shaft II driven by the servo motor II, and a ball is fixed at the end part of the main shaft II. The device can effectively simulate and represent the abrasion morphology evolution rule of the contact area of the steel ball and the raceway after long-term operation, so that accurate and reliable data support is provided for design optimization and service life prediction of the bearing.

The application provides a clutch cover assembly comprehensive testing machine, and belongs to the field of clutch testing equipment. The clutch cover assembly comprehensive testing machine comprises a testing mechanism and a wear simulation mechanism. The testing mechanism is used for testing the clutch cover assembly and has a fixing position suitable for fixing the clutch cover assembly. The wear simulation mechanism is arranged on the testing mechanism and has a pushing top suitable for pushing the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly. By adding the wear simulation mechanism on the testing mechanism and pushing the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly through the wear simulation mechanism, different degrees of wear of the driven disc are simulated, so that the testing mechanism can test the related parameters of the clutch cover assembly when the driven disc is in different wear states, the automation of testing is realized, and the testing efficiency is improved.

The invention discloses a steel rail polishing simulation testing machine and a testing method, and the steel rail polishing simulation testing machine comprises a rack, a millstone module, a feeding module, an operation module and a control module. The millstone module is rotationally connected to the rack and used for polishing the simulated steel rail sample. The feeding module comprises a first driving device and a guiding device and is used for driving the sample to move. The operation module comprises a clamping device and a second driving device and is used for driving the sample to rotate. The control module is in communication connection with all the modules and used for controlling the grinding rotating speed, the feeding speed and the rotating speed. A small-scale simulation steel rail sample is adopted to replace a full-scale steel rail section, the test cost is reduced, and accurate reproduction of polishing parameters is achieved through the control module. The same polished sample can be detached and transferred for a service performance test, the correlation between polishing process parameters and the long-term service performance of the steel rail is established, and the research blank of the wheel-rail friction wear simulation service test in the steel rail polishing direction is filled.

An object of a system according to an embodiment is to enable a purchaser to select clothing that suits the purchaser with confidence.SOLUTION: A system according to an embodiment includes a body type analysis unit, a preference analysis unit, a proposal unit, and a simulation unit. The body type analysis unit analyzes body type information of the purchaser. The preference analysis unit analyzes a preference of the purchaser. The proposal unit proposes optimal clothing based on the analysis results of the body type analysis unit and the preference analysis unit. The simulation unit performs a wearing simulation of the clothing item proposed by the proposal unit.SELECTED DRAWING: Figure 1

The application belongs to the technical field of wheel tread wear simulation, and discloses a wheel tread wear calculation optimization method and system based on SIMPACK, which is applied to the process of dividing a set route into multiple operation intervals for wheel tread wear simulation analysis, and based on the following steps for wear calculation optimization from the second operation interval: obtaining the wear profile and model state file obtained by simulation of the previous operation interval; based on the set initial calculation time, performing wheel tread wear simulation analysis to obtain the abnormal value of the wheel tread wear amount; based on the set simulation calculation time, performing wheel tread wear simulation analysis on the current operation interval to obtain the simulation value of the wheel tread wear amount of the current operation interval; and subtracting the simulation value of the wheel tread wear amount from the abnormal value to obtain the correction value of the wheel tread wear amount of the current operation interval. The application solves the problem that importing a model state file in SIMPACK will cause abnormal wheel tread wear calculation results, and improves the wear calculation precision.

This invention provides a method and system for simulating jewelry wearing based on a generative image model, belonging to the field of image processing technology. The method includes: acquiring jewelry images and model images; extracting structural and detail features of the jewelry, as well as overall human structural features and target wearing area features; constructing a generative image model, injecting the jewelry structural and detail features, as well as the overall human structural features and target wearing area features, iteratively updating in stages, and finally generating a target image of the model wearing the jewelry. The system includes a raw image acquisition and processing module, a feature extraction and encoding module, and an image generation module. This invention overcomes the pain point of imbalance between the overall and details in traditional models by extracting jewelry and model features layer by layer, combined with a staged iterative injection mechanism, ensuring wearability and detail fidelity, and adapting to multiple scenarios such as e-commerce display, marketing material production, and design preview.

The application relates to a precision inner circle grinding electric spindle high-precision retention design method, which comprises the following steps: establishing an axle system finite element model; selecting materials for bearings and a spindle; considering bearing channel parameters and pre-tightening to establish a spindle precision simulation model; establishing a spindle precision optimization model, taking minimum axle end radial displacement as an objective to match parameters under each group of pre-tightening forces; considering pre-tightening force, cycle number and stress field to establish a spindle wear simulation model; establishing a spindle wear optimization model, taking a group of pre-tightening combinations, taking minimum wear as an objective to match parameters; establishing a precision retention evaluation model to quantitatively evaluate the spindle precision retention; and outputting a design model after meeting the precision and retention requirements. The application provides a precision inner circle grinding electric spindle design method, parameters of the spindle are matched through a precision optimization model and a wear optimization model, a precision retention evaluation model is established, and the designed electric spindle meets the high-precision retention requirement.

The present application relates to the technical field of numerical simulation, and particularly relates to a wall wear simulation method and device independent of grid size, equipment and medium, comprising: obtaining a model file of a structure and a background grid independent of a facet element size of the model file; obtaining, through simulation, a collision contact point between a granular particle and a wall of the structure and a wall wear volume generated by the collision contact point due to collision contact; accumulating, according to the wall wear volume generated by the collision contact point due to collision contact, a wall wear volume of a first grid node closest to the collision contact point in the background grid; and performing wear diffusion on the wall of the structure according to a latest accumulated wall wear volume of a second grid node corresponding to a sampling point in the background grid, to obtain a distribution cloud picture of the wear depth on the wall grid. Through the present application, wall wear simulation independent of the facet element size of the model file can be performed, and the accuracy and engineering applicability of wear prediction are improved.

The utility model relates to the technical field of woven bag production, and discloses a woven bag anti-aging detection device which comprises a testing main machine body, the testing main machine body comprises a machine shell, a plurality of sample clamps are horizontally and fixedly installed on the upper portion in the machine shell at equal intervals, and a plurality of through holes are formed between the upper side wall and the lower side wall of each sample clamp. A friction simulation mechanism is arranged above each sample clamp, and a gas pollutant simulation mechanism is arranged at one end of the shell. According to the utility model, the environment simulation function is further improved, the simulation of common pollutants in the air is added, the gas storage tank body is arranged and can inject specific pollutant gas with a certain concentration into the test box through the pipeline by virtue of the gas pump, and the simulation of gas pollutants can be realized by injecting the specific pollutant gas with a certain concentration into the test box; a friction part is arranged on a sample clamp, and a periodic friction test is carried out on the woven bag, so that the aging process in actual use is more comprehensively simulated.

The invention relates to the technical field of numerical simulation, in particular to a grid-size-independent wall surface wear simulation method, device and equipment and a medium, and the method comprises the steps: obtaining a model file of a structure and a background grid irrelevant to the size of a patch unit of the model file; the collision contact points between the discrete particles and the wall surface of the structure and the wall surface abrasion volume generated by collision contact of the collision contact points are obtained through simulation; accumulating the wall surface wear volume of a first grid node closest to the collision contact point in the background grid according to the wall surface wear volume generated by the collision contact point due to the collision contact; and according to the latest accumulated wall surface wear volume of the second grid node corresponding to the sampling point in the background grid, carrying out wear diffusion on the wall surface of the structure to obtain a distribution cloud chart of the wear depth on the wall surface grid. According to the method and the device, wall surface wear simulation can be performed in a manner irrelevant to the size of the patch unit of the model file, and the wear prediction accuracy and engineering applicability are improved.

This invention discloses a multi-scale wear analysis method based on fractal principles and molecular dynamics. The method establishes a rough surface model for the required surface roughness using fractal principles, performs contact simulation to obtain the contact pressure distribution, and calculates the microscopic wear force load based on the contact pressure distribution. It then performs molecular dynamics wear simulation under the corresponding load to analyze the microscopic wear mechanism and calculate the microscopic tangential force. Based on the microscopic shear stress, it calculates the shear work and the actual interfacial shear strength of the material, and calculates the macroscopic wear volume based on the shear work of all contact nodes under the macroscopic slip distance. This invention establishes a macroscopic model based on fractal principles, solving the problem that wear analysis does not consider the actual morphology under different surface roughnesses. Furthermore, this invention can realize multi-scale wear calculation and analysis from macroscopic contact to microscopic wear and back to macroscopic wear, solving the problem that wear analysis is mostly performed at the same scale and does not reflect multi-scale characteristics.

The application discloses a kind of automobile fender sharp edge forming die wear simulation method, comprising the following steps: S1, construct fender sharp edge forming finite element model;S2, die and sheet are meshed;S3, set forming simulation condition, start simulation;S4, calculate and record wear amount;S5, whether grid degradation is carried out according to wear result and setting, update forming simulation condition after degradation;S6, cycle S2-S5, until reach wear setting condition end simulation.The application analyzes workpiece forming process by AutoForm forming tool, obtains the position of each node and the contact pressure and speed required for calculating wear in each forming step, compares and analyzes the maximum wear amount calculated using Archard wear calculation formula with the failure evaluation index of fender die wear edge line clarity, when cumulative wear amount reaches failure evaluation index, it is die life value, to realize the prediction of die life.

The invention discloses a method for measuring human body data by integrating a visual sensor on a mobile terminal. Hardware and environment detection: detecting built-in hardware of the mobile terminal, and detecting whether light in a measurement environment meets a measurement condition or not; guiding measurement, informing the measured person of the wearing requirement during measurement, and detecting and prompting the position range and the motion amplitude of the measured person during shooting; data acquisition, including a dynamic mode and a static mode, and completing corresponding data acquisition in the corresponding dynamic mode and static mode; data processing and modeling, de-noising and filtering, and model reconstruction; and data display and data uploading: displaying the established 3D model through a mobile terminal, and uploading the data. According to the method for measuring the human body data by integrating the visual sensor on the mobile terminal, through the mode of the mobile terminal, a customer can conveniently scan the three-dimensional data of the customer by himself / herself, and therefore a corresponding three-dimensional model is generated for wearing simulation.

This application relates to the field of reducer reliability testing technology and discloses a harmonic reducer wear simulation testing device, including a support base. A main motor is fixedly installed on the top of the support base, and a harmonic reducer body is fixedly installed on the output end of the main motor. A connecting plate is fixedly installed on the end of the harmonic reducer body away from the main motor. An auxiliary motor is fixedly installed on the side of the connecting plate near the main motor, and a mounting shaft is slidably installed on the side of the connecting plate away from the harmonic reducer body. The auxiliary motor drives the lead screw to rotate, changing the position of the mounting shaft and the load. Simultaneously, the sliding of the ball within the straight and inclined slide grooves causes the adjusting column to move periodically, thereby changing the amplitude of the vibration generated on the connecting plate during the process of the striking ball sliding into and out of the striking groove. This simulates various working conditions, prevents test result distortion, reduces the gap between the test and real working conditions, further shortens the test cycle, and improves the comprehensiveness of the test.

The invention discloses a danger source identification method for a large recreation facility, and relates to the technical field of recreation facility monitoring, and the method comprises the steps: constructing a digital twinborn model of a target recreation facility; acquiring real-time state data based on a sensor array, and updating the digital twin model in real time; based on historical detection information, historical operation information and historical climate information, training a wear simulation plug-in, a corrosion simulation plug-in and an electric appliance aging simulation plug-in of the target recreation facility, and implanting the digital twinborn model; fMEA evaluation is carried out on the target recreation facility component, and the minimum safe operation frequency is configured; before the target recreation facility is started, simulation operation is conducted on the target recreation facility based on the digital twin model, safety analysis is conducted on the target recreation facility according to the operation result and the minimum safe operation frequency of each component, and a danger source recognition result is obtained. According to the invention, the technical problem of poor real-time performance and accuracy of recreation facility hazard source identification in the prior art is solved.