1994results about "Material strength using single impulsive force" patented technology

A payload for an inspection robot to inspect an inspection surface may include a concrete sensing assembly and a payload mount. The concrete sensing assembly may include a first impactor at a first end, a first near transducer at a first distance from the first impactor, and a second far transducer at a second distance from the first impactor. The second distance may be greater than the first distance. The payload mount may be structured to couple the concrete sensing assembly to the inspection robot and to move the concrete sensing assembly between at least a first lowered position and a second raised position.

The invention provides a metal material surface difference analysis method which comprises the following steps: calculating Gibbs free energy at different temperatures by adopting a thermodynamic model according to chemical components and an initial microstructure of a material, and drawing a time-temperature-transformation curve of the material through phase diagram analysis software, obtaining a grain growth kinetic parameter and a recrystallization temperature interval; inputting data information of strength, hardness and toughness in different application scenes by utilizing the established multi-objective optimization model, and searching optimal grain size distribution through a genetic algorithm to obtain an optimal microstructure for balancing various performance indexes; according to the optimal microstructure, a heat treatment process route is reversely designed, finite element software is adopted to simulate temperature field and stress field distribution in the heat treatment process, and control parameters of heating, heat preservation and cooling are determined through iterative optimization.

A payload for an inspection robot to inspect an inspection surface may include a concrete sensing assembly and a payload mount. The concrete sensing assembly may include a first impactor at a first end, a first near transducer at a first distance from the first impactor, and a second far transducer at a second distance from the first impactor. The second distance may be greater than the first distance. The payload mount may be structured to couple the concrete sensing assembly to the inspection robot and to move the concrete sensing assembly between at least a first lowered position and a second raised position.

The invention provides an analysis method and system for dynamic fracture of a quasi-brittle material. The method is used for solving the technical problem that an existing method is insufficient in dynamic fracture capturing capacity in quasi-brittle materials. The method comprises the following steps: constructing a representative volume element RVE of a quasi-brittle material with two embedded fracture planes; a dual-scale model of the RVE is constructed, the dual-scale model comprises a macroscale sub-model and a mesoscale sub-model, and the crack traction force and the displacement jump increment in the mesoscale sub-model meet the rate-dependent cohesive friction law; identifying the parameters of the dual-scale model; and embedding the dual-scale model into finite element software to simulate the dynamic fracture of the quasi-brittle material. The contained mesoscale crack plane has the key characteristics of the dynamic fracture behavior of the quasi-brittle material, and has remarkable advantages compared with a classical empirical model.

The invention discloses a multi-linkage combined load synchronous application strength testing device. The technical problems that in the prior art, the load applying mode is single, and the combined load cannot be synchronously applied are solved. The device comprises a connecting mechanism and a load applying mechanism, wherein the load applying mechanism comprises a torsional load applying structure, a load transmitting structure and a multi-linkage testing structure. The load transmission structure comprises a special-shaped stress plate and a torsional load transmission assembly, and the torsional load transmission assembly comprises a connecting chuck and a torque plug-in. By controlling the rotation of the torsion load transmission assembly, a pure torsion load applying mode or a conversion mode of converting torsion motion into radial load can be selectively realized, and multi-directional load detection is realized. The invention further provides a combined load synchronous applying function, the single driving source synchronously activates the torsion load path and the radial load path by adjusting the geometric positions of the torque plug-in and the load adjusting plate on the connecting chuck, and synchronous applying of the torsion load and the radial load is achieved.

The present invention relates to a hydrogen environment mechanical property test apparatus. Disclosed is a micro-sample mechanical property test apparatus in a temperature-controllable and pressure-controllable hydrogen environment. The apparatus at least comprises a hydrogen environment micro-sample loading system, wherein the hydrogen environment micro-sample loading system is formed by connecting a micro-sample loading system and a hydrogen environment chamber, such that a force load can be applied to a micro-sample by means of the micro-sample loading system, and a mechanical property change parameter of the micro-sample in a hydrogen environment is acquired. The apparatus is further provided with a hydrogen environment comprehensive control system, which ensures that the apparatus can perform a mechanical property test at a controllable temperature and a controllable pressure, and can monitor the state of the apparatus in real time; a hydrogen environment chamber sealing apparatus system ensures that the apparatus has a good sealing performance; and a hydrogen leakage alarm system plays a role in providing safety early warnings for the hydrogen environment chamber and ensuring that the apparatus can perform the mechanical property test in a safe environment. The present invention has a micro-sample hydrogen environment chamber, and uses a small-volume hydrogen environment chamber, so that the safety is high, and the accuracy and reliability of a test result can be ensured.

The invention relates to the technical field of glass detection, in particular to a glass ceramic panel mechanical impact resistance testing system which comprises a base body, an impact head, a connecting piece, an elastic piece and a first piston. The base body is provided with a medium cavity, an impact cavity and a containing cavity. The impact cavity is communicated with the medium cavity and penetrates to the surface of the base body. The medium cavity and the impact cavity are arranged at intervals with the containing cavity. The first piston is in sliding fit with the medium cavity. The connecting piece is in sliding fit with the impact cavity. The side wall of the impact cavity is provided with a first flow channel and a second flow channel. The first flow channel is communicated with the medium cavity, and the second flow channel is communicated with the containing cavity. The connecting piece is provided with a connecting flow channel. The medium cavity is used for containing a liquid medium. The elastic piece is connected between the first piston and the connecting piece in an abutting mode. The impact head is mounted at one end of the connector away from the medium cavity. The device can more accurately simulate the condition of mechanical impact on the glass ceramic panel in the actual use process, and can accurately screen the glass ceramic panel suitable for an induction cooker product.

The invention provides a method for obtaining the optimal low-temperature impact toughness and a welded body, and the method comprises the following steps: S1, obtaining chemical components of sample steel, and calculating the cooling rate corresponding to the bainite phase change curve nose tip temperature of the sample steel; s2, the cooling rate serves as the key cooling rate of the welding heat cycle process, and the corresponding welding heat input amount is calculated; s3, cutting a plurality of cuboid thermal simulation initial samples of which the length directions are parallel to the rolling direction of the steel plate from the sample steel; s4, two-pass welding thermal simulation cycle experiments at different temperatures are set; s5, two thermocouples are welded to the center of the cuboid thermal simulation initial sample for temperature measurement, and a welding simulation experiment is completed; and S6, size machining is conducted on the welding sample, a low-temperature impact experiment is conducted, impact energy under different technologies is measured, and the optimal impact toughness of CGHAZ and ICCGHAZ is determined. The method can be used for developing and optimizing the welding process with insufficient low-temperature impact toughness of the submerged-arc welding heat affected zone of the low alloy steel.

The invention discloses a PVC film performance detection method and system based on a machine vision technology, and relates to the field of PVC film detection. According to the technical scheme, the method comprises the following steps: performing visual inspection on a to-be-detected PVC film sample to obtain defect characteristic parameters of the to-be-detected sample, performing performance test on the to-be-detected PVC film sample to obtain performance index parameters of the to-be-detected sample, and performing gray correlation analysis on the performance evaluation parameters and the defect characteristic parameters to obtain the to-be-detected PVC film sample. The method comprises the following steps: acquiring a performance index of a PVC film and a defect characteristic parameter, acquiring a correlation degree between the performance index of the PVC film and the defect characteristic parameter, constructing an evaluation model according to the acquired parameter and the correlation degree, and calculating a performance evaluation quantized value of the to-be-detected PVC film through the model. According to the invention, real-time performance detection can be carried out on the PVC film in the production and processing process, and a traditional detection mode of sampling a formed finished film is not needed, so that the production and performance detection efficiency of the PVC film is improved, and the detection complexity is reduced.

According to the three-point bending high-temperature fatigue test instrument and method based on X-ray in-situ imaging, an extreme thermal field is applied to a sample based on halogen lamp infrared radiation focusing heating, a clamp ascends and descends through a servo hydraulic cylinder, and axial displacement of the ends of the sample is converted into bending moments at the two ends through the rotation characteristic of a connecting rod mechanism; therefore, a monotonous or cyclic bending external load is applied to the sample. Meanwhile, an oxidizing or inert test gas atmosphere is provided. And the acoustic emission system monitors the material damage failure starting time in real time. The device is small in size, high in precision and fast in response, and provides technical support for the damage evolution process characterization and failure damage mechanism research test of the tested sample under the heat-force-oxygen multi-field coupling action by combining a three-dimensional high-temporal-spatial-resolution X-ray characterization technology.

The invention relates to the technical field of steel reinforced concrete vibration testing, and discloses a method and system for testing the vibration performance of a steel reinforced concrete frame structure, and the state of the steel reinforced concrete frame structure is judged through vibration amplitude and frequency changes under the conditions of different excitation modes, measurement point positions, sampling frequencies, collection durations and the like. By accurately measuring and analyzing the change of the damping ratio, potential damage or performance change of the structure can be found in time, and a powerful basis is provided for safety assessment and maintenance of the structure; the signal is decomposed and analyzed based on Hilbert-Huang transform, the internal composition and the change rule of the structure vibration signal can be analyzed more finely, and the method has advantages for identifying weak vibration characteristics and early damage signs of the structure in a complex stress state, so that the test structure can be evaluated in time in the early damage stage, and the test accuracy is improved. And therefore, coping treatment can be conveniently carried out.

The invention relates to a measuring device (100, 100') for determining individual parameters of sheet materials, such as flat hygienic papers and flat textile-like or textile materials. The invention also discloses methods relating to how the individual parameters are determined using the measuring device (100, 100').

The invention discloses a piezoelectric ceramic stack driven impact press-in test method and a test system thereof. According to the invention, a piezoelectric ceramic stack is used as a drive, a sample is carried on a displacement table, measurement parameters in an impact press-in test are monitored through a force sensor and a displacement sensor, a computer is used for realizing accurate control and subsequent processing and analysis of the measurement parameters, and the whole test adopts electric control actuation; the device is simple in structure and convenient to operate and control, the pressure head can be accurately controlled to be impacted and pressed into the surface of a sample at a certain speed, and the maximum press-in load and the maximum press-in depth in the impact press-in process can be estimated according to the maximum output displacement of the pressure head under the free condition; compared with other impact press-in tests, the impact press-in test method has the advantages that the safety and the stability are well guaranteed, and the impact press-in test method has great application potential.

The invention relates to the technical field of stainless steel pipe detection, in particular to a pressure-resistant stainless steel pipe and a strength detection device thereof.The pressure-resistant stainless steel pipe comprises a base, two symmetrically-arranged vertical plates are installed in the middle of the upper end face of the base, corrugated grooves are formed in the middles of the vertical plates, round rods are slidably installed in the corrugated grooves, and a center plate is jointly and fixedly installed between the two round rods; two T-shaped plates get close to each other to drive two built-in cylinders to be placed into the two ends of a stainless steel pipe correspondingly, the surface of the fixed stainless steel pipe is knocked through a detection assembly, and the stainless steel pipe can move up and down after the surface of the stainless steel pipe is knocked through arrangement of a corrugated groove and a spring; and meanwhile, the impact force generated when the stainless steel pipe is knocked on the detection assembly can be enhanced, strength detection of the stainless steel pipe is further enhanced, the stainless steel pipe is driven to rotate through rotation of the rotating frame, and therefore circumferential strength detection can be conducted on the outer wall of the stainless steel pipe.

The invention discloses a rope technical equipment testing system and method under multi-environment conditions, and relates to the technical field of rope testing, and the system comprises the steps: building target testing equipment, and activating an environment simulation cabin module to set a plurality of environment simulation conditions; connecting the to-be-tested rope equipment to target test equipment and activating a mechanical loading module; performing various mechanical tests on the to-be-tested rope equipment, and generating a test data sensing record log; evaluating the to-be-tested rope equipment according to the test data sensing record log to generate a rope performance evaluation index; and performing test analysis on the to-be-tested rope equipment, generating a test report, and generating optimization suggestions of the to-be-tested rope equipment. The technical problem that the rope is lack of safety and reliability due to inaccurate performance test of the rope in the prior art is solved, and the technical effects of accurately simulating a complex environment, comprehensively evaluating the performance of the rope and improving the use safety and reliability of the rope are achieved.

The invention discloses a laminated plate impact event three-dimensional strain field inversion method based on binocular vision, and the method comprises the steps: laying dynamic tracking mark points on the surface of an impacted carbon fiber laminated plate, synchronously collecting the image data of the whole impact process through a high-speed binocular camera, and generating a binocular vision image sequence with impact time sequence information; generating three-dimensional displacement field data of the impact area of the carbon fiber laminated plate based on the binocular vision image sequence; calling the anisotropic constitutive model of the carbon fiber laminated plate to generate a preliminary three-dimensional strain field inversion result; and performing coupling operation on the preliminary three-dimensional strain field inversion result, the impact load parameter and the laminated plate material characteristic parameter to generate a final carbon fiber laminated plate three-dimensional strain field inversion result consistent with the dynamic response of the impact event. According to the embodiment of the invention, accurate full-field representation of the dynamic strain of the impact event can be realized, and reliable data support is provided for impact resistance evaluation and structure optimization of the laminated plate.

The technology provides a device that measures an internal structural integrity and surface hardness of baseball bats having a bat clamp that secures the baseball bat at a handle end, a bat support that secures the baseball bat at a barrel end, and a rebound hammer that impacts the baseball bat to determine a coefficient of restitution value. The rebound hammer may indirectly impact the baseball bat through a force dispersing tool. The technology further provides a device that measures vibration propagation within baseball bats, having a bat clamp that secures the baseball bat at a handle end, a vibration sensor provided proximate to the handle end, and a vibration impact tool that impacts the baseball bat to transfer a force thereto.

The invention provides a method, a device and equipment for predicting and evaluating thermal aging damage of dual-phase steel, and particularly relates to a method for predicting and evaluating mechanical properties, internal microstructure damage defect conditions and residual life of dual-phase stainless steel after thermal aging damage by utilizing magnetic comprehensive parameters and thermoelectric force nondestructive testing. The prediction evaluation method comprises the following steps: determining initial Charpy impact energy mechanical performance parameters based on an experiment of the dual-phase steel material, calculating to obtain a Charpy impact energy change curve of the full service life cycle of the material, and then predicting the thermal conductivity of the dual-phase steel material based on magnetic comprehensive parameters and thermal electromotive force physical performance parameters obtained through nondestructive testing. The mechanical property and the microdefect state of the material in the current service state are calculated through a constructed thermal aging damage mechanical model associated with dual-phase steel thermal aging damage characteristic defect parameters, finally the remaining service life of the current material is obtained by comparing a full-service-life-cycle mechanical property change curve of the material, and the precision is larger than or equal to 90%. The current mechanical property deterioration state of the dual-phase steel can be accurately judged, and the safety of a service system of the dual-phase steel is improved.

The invention discloses a lithium ion battery diaphragm performance automatic detection device and a detection method thereof.The detection device comprises a feeding mechanism and a detection module, and the detection module comprises a thickness detection unit, a gram weight detection unit, a porosity detection unit, a puncture strength detection unit and an air permeability detection unit; the thickness detection unit adopts a thickness gauge to detect the thickness of the diaphragm; the gram weight detection unit calculates the weight of the diaphragm in unit area according to the measured weight and area; the porosity detection unit calculates the porosity by combining the area and the thickness of the diaphragm; the puncture strength detection unit adopts a needle head to penetrate through the diaphragm, captures the maximum load at the penetration moment, and divides the maximum load by the average thickness of the diaphragm to obtain the puncture strength; the air permeability detection unit evaluates the air permeability by using the time required for the air to pass through the diaphragm with the specific area. According to the invention, comprehensive automatic detection of diaphragm performance can be realized, manual intervention is reduced, detection efficiency is improved, and data of transverse consistency and longitudinal consistency can be well seen.

The invention provides a mechanical in-situ test experimental device with a multi-working-condition simulation coupling effect, and belongs to the field of mechanical testing. The problems that an existing mechanical property testing device can only simulate single environment characteristics and cannot test various mechanical properties are solved. Wherein the linear sliding table is connected with the mobile platform through the mounting bracket, the upper end of the connecting rod is fixedly connected to the mobile platform, and the lower end is positioned in the box body; any one of one of the stretching and fatigue experiment clamp, the bearing platform and the bending pressing table can be mounted on a bottom plate of the box body, and any one of the other stretching and fatigue experiment clamp, the compression pressing head, the hardness measuring head, the bending pressing head and the impact testing head assembly can be mounted at the lower end of the connecting rod; the environment simulation assembly can simulate the temperature, humidity and salt mist environment of actual working conditions in the box body; the in-situ monitoring assembly can be used for monitoring the to-be-tested sample in the box body in real time. The device can simultaneously simulate a plurality of actual working conditions and coupling working conditions of actual loads, and can complete a plurality of mechanical property tests.

The invention provides a method for detecting the influence of temperature and mechanical deformation accumulation on the anti-short circuit performance of a converter transformer, belongs to the technical field of converter transformer anti-short circuit, and deeply studies the mechanical response characteristics of the converter transformer under different temperature and dynamic force load conditions through precise experiments and data analysis. Firstly, material characteristic parameters are obtained, temperature and mechanical load tests are carried out on a dynamic mechanical tension press, and temperature field distribution, mechanical response, residual deformation and insulation distance change of a converter transformer component are recorded in detail by using advanced equipment such as a three-dimensional laser scanner, a temperature sensor, a displacement sensor and a high-speed camera system. Through finite element analysis and data processing, a dynamic characteristic database under the accumulated action of temperature and mechanical deformation is established, and a correlation model is trained by applying a machine learning technology, so that the problem that a detection method capable of comprehensively evaluating temperature-mechanical deformation-electrical performance interaction is lacked in the prior art is solved.

The utility model provides mine slope deformation monitoring equipment with adjustable monitoring height, which comprises a slope pressure monitoring device, a soil settlement monitoring device and a mounting rod for connecting the slope pressure monitoring device and the soil settlement monitoring device, and monitoring platforms of the slope pressure monitoring device and the soil settlement monitoring device face the same direction; the slope pressure monitoring device is slidably connected with a rod body of the mounting rod, a rotating handle is arranged outside the rod body of the mounting rod, a transmission assembly connected with the rotating handle is arranged inside the rod body of the mounting rod, the transmission assembly is controlled through the rotating handle, the height of the slope pressure monitoring device on the mounting rod is adjusted, and then the mounting height and the monitoring height of equipment are flexibly controlled. And the practicability of the equipment is improved. According to the side slope multi-parameter monitoring equipment, the side slope pressure monitoring device and the soil body settlement monitoring device are combined, soil body landslide and settlement conditions of a metal mine side slope are monitored in real time, meanwhile, the buffer unit is arranged to protect the equipment, the service life of the equipment is prolonged, and the monitoring cost is reduced.

The invention relates to the technical field of battery safety testing, in particular to a new energy lithium battery impact testing device which comprises a testing table and a supporting column, the supporting column is fixedly connected to the lower surface of the testing table, a shell is fixedly connected to the upper surface of the testing table, and speed adjusting mechanisms are arranged on the two opposite outer walls of the shell. Butt joint mechanisms are arranged on the two opposite sides of the upper surface of the test board, a firing pin and a collision block are arranged on the two sides of the top of an inner cavity of the shell, a rotating cover is slidably connected to one end of the upper surface of the test board, and a linkage mechanism is arranged in the test board. According to the new energy lithium battery impact test device, tested batteries can be divided into columnar lithium batteries and cuboid lithium batteries, the columnar lithium batteries and the cuboid lithium batteries can be clamped, if impact test types need to be replaced, the impact test types can be replaced through a linkage mechanism, the automation degree is high, and the test efficiency is high. Technicians do not need to manually replace collision objects, and manpower and time are saved.

The invention discloses rock dynamic splitting combined monitoring equipment and a rock dynamic splitting combined monitoring method, relates to the technical field of rock dynamic testing, and is used for solving the problems of single and one-sided monitoring result and low accuracy caused by the fact that a single monitoring means, such as ultrasonic monitoring and pressure monitoring, is usually adopted for monitoring in a dynamic mechanical testing process. According to the main technical scheme, the rock dynamic splitting combined monitoring equipment comprises a pressure loading system, the pressure loading system comprises a containing space, the containing space is used for containing a sample, and the pressure loading system is used for providing dynamic impact for the sample and generating impact information; the combined monitoring device comprises a deformation detection piece, and the deformation detection piece is used for being in contact with the sample so as to generate deformation information of the sample under dynamic impact; and the image monitoring system is used for generating image information of the sample under the dynamic impact. The device is mainly used for rock dynamics testing.

The invention relates to the technical field of Teflon high-temperature cloth production, in particular to a detection device for Teflon high-temperature cloth production. A Teflon high-temperature cloth conveying structure for continuously conveying the Teflon high-temperature cloth is assembled on the machine body; the device has a flexible detection mode to adapt to multiple requirements, a Teflon high-temperature cloth detection structure flexibly switches a sealing pipe passage through an electromagnetic valve, medium conveying is accurately regulated and controlled according to the requirements of detection items, rapid conversion of waterproof, windproof and high-temperature-resistant detection is achieved, the same device efficiently completes multi-performance detection, stretching puncture detection is accurate and effective, and the detection efficiency is improved. The tensile test simulates real working conditions to comprehensively evaluate performance: the bidirectional screw rod is linked with the detection turntable to drive the tensile test assembly to perform multi-dimensional tensile on the high-temperature cloth. The two-way screw rod accurately regulates and controls the test distance to simulate different stress distributions, detects the annular stretching of the turntable to reproduce the stress state of a complex use scene, excites the mechanical response of the material in an omnibearing manner, accurately obtains the tensile property parameters, and deeply evaluates the applicability and durability of the material.

The invention discloses a layered foundation construction optimization method based on dynamic loading and intelligent inversion, and relates to the technical field of intelligent geotechnical engineering. In order to solve the problem that comprehensive analysis and optimization design of multiple layers of soil bodies are difficult to carry out in the prior art, the invention provides the following technical scheme: the layered foundation construction optimization method based on dynamic loading and intelligent inversion is characterized by comprising the following steps: S1, applying a dynamic load on a known layer of soil body; s2, acquiring response data, including acceleration, displacement and stress, of the soil body under the action of the dynamic load through a sensor; s3, deducing the dynamic response of the lower-layer soil body by using an inversion algorithm based on the acquired response data; s4, analyzing dynamic response characteristics of each layer of soil body; and S5, optimizing the compactness and the elastic modulus of the soil layer. The method can improve the accuracy and efficiency of soil dynamic response analysis, is suitable for mechanical property optimization in complex foundation engineering, and has wide engineering application value.

The utility model discloses a cantilever beam impact testing machine, and relates to the technical field of testing machines. The cantilever beam impact testing machine comprises a testing machine base, a cantilever beam body is fixedly connected to the testing machine base, an electric push rod is arranged on the cantilever beam body, an impact head is arranged at the output end of the electric push rod, and a positioning mechanism used for limiting a test sample is arranged above the testing machine base. The positioning mechanism comprises a positioning seat fixedly connected to the testing machine base, and the positioning seat is provided with a clamping assembly and an impact positioning assembly. According to the cantilever beam impact testing machine, through the design of the positioning mechanism, during operation, the position of the impact positioning assembly is firstly adjusted, so that the impact width position of a test sample is quickly clamped to form positioning, then the test sample is clamped and positioned by utilizing the clamping assembly, and the toughness of the test sample is quickly tested; the test sample can be conveniently and quickly positioned, and the operation process is time-saving and labor-saving.

The invention relates to the technical field of extracranial strike testing, in particular to digitally-controlled extracranial strike construction equipment of a traumatic brain injury model. Comprising a test platform, a sliding rail installed on the test platform and arranged in the length direction of the test platform, an animal fixing platform slidably connected with the test platform through the sliding rail, an impact structure arranged on one side of the test platform and a driving structure used for driving the animal fixing platform to move towards the impact structure. The impact structure is fixedly connected to the test platform, the output end of the impact structure faces the animal fixing platform, an experimental animal is installed on the animal fixing platform, the driving structure drives the animal fixing platform to enable the experimental animal to actively impact, and the impact structure enables the experimental animal to impact a fixed acting point at a certain initial speed. The system is more in line with the injury mechanism of a patient with clinical actual craniocerebral trauma, and a tester can accurately control and monitor parameters according to the moving speed and the moving distance of the animal fixing platform.

The invention relates to the technical field of new energy automobile battery testing, and discloses a new energy automobile battery aluminum alloy bottom shell impact testing device and method. The new energy automobile battery aluminum alloy bottom shell impact test device comprises a base, a driving frame is slidably arranged on the base, an acceleration mechanism for driving the driving frame to move at a high speed is installed on the base, a rotary driving seat is fixedly connected to the upper end of the driving frame, and a servo motor is installed in the rotary driving seat. And the driving end of the servo motor is fixedly connected with a multi-module mounting seat. According to the new energy automobile battery aluminum alloy bottom shell impact test method, an acceleration mechanism on a base drives a driving frame to move at a high speed, a rotary driving seat is driven to impact a battery pack mounted in an automobile battery detection positioning mechanism, and a servo motor drives a multi-module mounting seat to rotate and locks a required model seat for impact test. Therefore, various impact working conditions possibly encountered by the battery bottom case in actual use are comprehensively simulated, and the diversity and accuracy of testing are ensured.

The invention belongs to the technical field of equipment monitoring, and discloses a stress wave sensing-based measurement method and system applied to a wind power blade. Comprising the following steps: acquiring stress wave signal data, preprocessing the stress wave signal data, and sequentially performing bipolar cooperative decomposition, error correction and environmental interference suppression on the stress wave signal data to obtain perfect stress wave signal data; performing feature extraction on the perfect stress wave signal data, generating an intermediate feature matrix, performing further feature screening on the intermediate feature matrix, and outputting stress wave signal feature data; constructing a damage assessment model based on the stress wave signal feature data, and performing damage assessment on the wind power blade by using the damage assessment model to obtain a damage assessment record; generating a three-dimensional damage map based on the damage evaluation record, and sending the three-dimensional damage map to a preset wind power equipment safety terminal; equipment monitoring on the wind power blade is realized by using the stress wave.