56 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.

The invention is suitable for the technical field of wear-resistant block testing, and particularly relates to a wear-resistant block dynamic wear simulation method which comprises the following steps: acquiring dredging task information, and obtaining multiple pieces of simulation information based on the dredging task information; wherein the dredging task information comprises a dredging area and a dredging amount, and the simulation information comprises a simulation environment and a simulation condition; in the multiple simulation environments, abrasion simulation is conducted on the simulation object according to the multiple simulation conditions, and multiple simulation results are obtained; and the multiple simulation results are processed based on the dredging amount, the dredging sequence obtained through the multiple pieces of simulation information and the multiple dredging times, and the abrasion result is obtained. According to the dynamic wear simulation method for the wear-resistant block, the deviation between the wear simulation result and the real wear condition can be reduced, so that the simulation result better fits the real dredging operation.

The invention discloses an artificial joint frictional wear simulation testing machine and a testing method thereof. The testing machine comprises a motion loading module, a sample clamping module and a motion coupling module, the motion loading module mainly drives an upper sample of the sample clamping module to generate fundamental frequency swing through a double four-bar-planetary gear train composite mechanism, and the sample clamping module integrates a quick disassembly and assembly clamp and a temperature control lubrication system to fix various joint prostheses and simulate the physiological environment of the human body. And the motion coupling module cooperates with the motion loading module based on the six-degree-of-freedom parallel platform to realize composite action and suppress vibration interference. Through cooperative control of the three modules, the problems that an existing artificial joint friction and wear simulation testing machine is limited to a single joint type and cannot adapt to various artificial joint prostheses, and the degree of freedom of motion is limited, so that various motion forms of the artificial joint cannot be completely restored are solved.

The invention discloses a durability test method and device suitable for an active actuator hydraulic pump, a multi-physics field coupling technology, namely force-temperature cooperative loading, is adopted, dynamic parameter adjustment is realized through data driving, a durability simulation system with a fatigue, wear and aging multi-factor synergistic effect is constructed, and the durability test method and device suitable for the active actuator hydraulic pump are applied to fatigue and wear simulation. On the basis of multi-source data, a complex and changeable force value signal is equivalent to a representative block spectrum by applying an equivalent damage principle, an active actuator is driven to move through a force value, and the fatigue and wear process is accurately strengthened; for aging simulation, in combination with temperature signal data of the active actuator and environment temperature signal data, accelerated simulation of an aging process is realized by utilizing an Arenius model. By collecting multi-source data in real time and carrying out comprehensive analysis, test parameters are dynamically adjusted, the performance attenuation process of the active actuator hydraulic pump under the combined action of multiple factors under the actual working condition is truly restored, and the accuracy and reliability of the test are remarkably improved.

The invention relates to the technical field of touch screen antibacterial detection, and discloses an antifouling and antibacterial effect detection device for a touch screen, which comprises a base assembly, a wear simulation assembly and a moving assembly, the wear simulation assembly comprises a finger simulation structure and a sebum secretion mechanism, the finger simulation structure communicates with the sebum secretion mechanism, and the sebum secretion mechanism can provide sebum-like secretion liquid for the finger simulation structure; the moving assembly can move back and forth along the base assembly, the abrasion simulation assembly is installed on the moving assembly, and friction simulation is conducted when the abrasion simulation assembly makes contact with the touch screen. The sebum secretion mechanism is used for releasing sebum-like secretions, damage generated by a biofilm on the touch screen and mechanical friction in actual use is simulated, the scene that multiple persons use the touch screen for a long time in public places can be effectively simulated, the accuracy of touch screen antibacterial performance detection is greatly improved, and the detection cost is reduced. And a high-simulation test platform is provided for product quality control.

The invention relates to an aircraft outer surface coating high temperature and wear resistance detection device, and relates to the technical field of detection devices.The aircraft outer surface coating high temperature and wear resistance detection device comprises a detection table, the interior of the detection table is divided into a high temperature simulation detection cabin and a wear simulation detection cabin through a partition plate, and a detection piece and a leak hole supporting table are arranged in the high temperature simulation detection cabin; the device further comprises a moving mechanism, a rotary friction piece and a cooling assembly, the moving mechanism is used for driving the leak hole supporting table to achieve stretching, retracting, deflection and transverse displacement, the rotary friction piece can stretch and retract and rub the to-be-detected sample piece in a line contact or surface contact mode, and the cooling assembly comprises a cooling mechanism and a stretching and retracting mechanism. The rotary friction piece has a linear contact friction mode and a surface contact friction mode, telescopic adjustment can be achieved through a fourth telescopic rod, rotation can be controlled through a first motor, dynamic conversion of contact forms of movable parts of an airplane in movement can be simulated, and abrasion detection of friction abrasion and particle erosion is achieved in cooperation with erosion simulation of a particle acceleration device.

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 present application belongs to the technical field of health state evaluation and prediction of mechanical transmission system, and proposes a kind of parallel misalignment state mechanical transmission component wear amount probability prediction method.It includes the following steps: step S1: build the three-dimensional model of mechanical transmission component containing parallel misalignment error;Step S2: considering the random uncertainty of load profile, carry out wear simulation analysis based on grid node iteration;Step S3: considering the cognitive uncertainty of the model itself, train the Bayesian long short-term memory network model;Step S4: predict the expected value of wear and its uncertainty interval.The present application improves the description accuracy of traditional finite element method on mechanical transmission component wear behavior, breaks through the limitation of wear amount deterministic numerical prediction, provides high robustness and high reliability of probability prediction result, and provides scientific basis and data support for transmission system condition-based maintenance decision.

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.

According to the method, an improved Johnson-Cook constitutive model subprogram is achieved in a finite element software implicit algorithm material library, compared with a traditional Johnson-Cook constitutive model, the improved Johnson-Cook constitutive model corrects a plastic deformation term and a strain rate term, and the improved Johnson-Cook constitutive model can more accurately describe the abrasion behavior of the power transmission line hardware under impact loads such as instantaneous strong wind. The improved Johnson-Cook constitutive model is embedded, developed and improved in an implicit algorithm material library, the implicit algorithm can more accurately achieve constitutive integration of the material compared with an explicit algorithm, the method can more accurately describe the stress-strain relation of the fitting material under different strain rates, and the precision of transmission line fitting abrasion simulation is improved.

The invention provides an improved constitutive model suitable for line hardware wear simulation and an undetermined parameter fitting method of the improved constitutive model. The Johnson-Cook constitutive model improves the influence of a plastic deformation item and a strain rate item on flow stress. According to the method, by improving the strain rate related items of a traditional Johnson-Cook constitutive model, the stress-strain relation under impact loads such as instantaneous strong wind can be better described, and therefore the improved Johnson-Cook constitutive model has higher precision when the abrasion behavior of the transmission line hardware fitting is simulated.

The invention provides a transmission line fitting friction wear analysis method and system and a storage medium, the method reasonably simplifies a fitting assembly to be analyzed, accelerates the fitting wear simulation speed diagram, and improves the fitting wear simulation speed diagram through defining reasonable material attributes, a Johnson-Cook constitutive relationship and a Johnson-Cook fracture criterion, load and constraint conditions. And the wear simulation accuracy of the hardware fitting is improved. By setting reasonable grid types and unit sizes, the wear simulation speed and precision of the power transmission line hardware fitting are balanced.

The invention relates to the technical field of road engineering material testing, and particularly discloses a pavement fog seal material anti-skid performance testing device, a detection base is fixed on the top of a detection device bottom plate, a station driven gear, a substrate chuck and a substrate fixing clamp are sequentially arranged on the detection base, an outer ring linkage gear ring is arranged on the inner side of the detection base, and an inner ring linkage gear ring is arranged on the outer ring linkage gear ring; a detection mechanism fixing ring is fixed to the top of the detection base, an environment simulation ring is installed on the upper portion of the detection base, a simulation ring lifting motor is installed on the side face of the environment simulation ring, a spraying ring is arranged on the top of the environment simulation ring, a heating ring is arranged on the bottom of the environment simulation ring, and a machining ring is arranged on the top of the environment simulation ring. A machining ring lifting motor is installed on the side face of the machining ring, a track rolling simulation mechanism transverse moving motor base and a dynamic abrasion simulation mechanism lifting motor base are fixed to the top of the machining ring, the lower portion of the rolling simulation mechanism lifting motor base is connected with a rolling simulation mechanism base, and the top of a total lifting stud is connected with a device top plate.

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 provides a diamond grinding wheel wear prediction method which comprises the following steps: performing three-dimensional morphology observation on the surface of a grinding wheel through a high-resolution microscope or a scanning electron microscope to obtain geometrical characteristic data of abrasive particles, and then selecting nine typical abrasive particle shapes based on the observation data to perform three-dimensional modeling to construct an abrasive particle database; performing single-abrasive wear simulation on different workpiece materials in finite element simulation software to obtain data such as wear depth, wear volume, temperature field and grinding force, and establishing a single-abrasive wear database; and finally, mapping the single-abrasive-particle wear data into a grinding wheel abrasive particle database through wear mapping and accumulation, predicting the overall wear condition of the grinding wheel through iterative accumulation, and evaluating the average wear depth, the wear volume and the failure abrasive particle proportion of the grinding wheel based on the accumulated wear data so as to accurately predict the overall wear state of the grinding wheel. The grinding precision and efficiency are improved, the machining quality is kept, the production efficiency is improved, and the service life of the grinding wheel is prolonged.

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 application is suitable for the technical field of wear block testing, and particularly relates to a wear block dynamic wear simulation method, which comprises the following steps: obtaining dredging task information, and obtaining a plurality of simulation information based on the dredging task information; wherein the dredging task information comprises a dredging area and a dredging amount, and the simulation information comprises a simulation environment and a simulation condition; performing wear simulation on a simulation object in the plurality of simulation environments according to the plurality of simulation conditions to obtain a plurality of simulation results; and processing the plurality of simulation results based on the dredging amount, a dredging sequence obtained based on the plurality of simulation information and a plurality of dredging times to obtain a wear result. The wear block dynamic wear simulation method provided by the application can reduce the deviation between the wear simulation result and the actual wear condition, so that the simulation result is more suitable for the actual dredging operation.

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.