125 results about "Crash test" patented technology

The invention discloses a storage battery electrode plate strength test system, and relates to the field of electrode plate strength test.The storage battery electrode plate strength test system comprises a multi-angle tool device and an array type impact test device.The multi-angle tool device comprises a base, a first tool platform, a second tool platform and a tool side plate, the first tool platform is rotationally installed on the base, and the second tool platform is rotationally installed on the tool side plate; the second tool platform is rotationally installed on the first tool platform, the rotation axis of the first tool platform is perpendicular to the rotation axis of the second tool platform on the horizontal plane, the array type impact testing device comprises an impact bottom plate, a lifting driving plate and impact rods, the impact rods are arranged on the impact bottom plate in a sliding and penetrating mode, and the impact rods are arranged in a rectangular array mode. The lifting driving plate is arranged above the impact bottom plate, a plurality of driving columns are arranged on the lifting driving plate in a rectangular array mode, each driving column is provided with an impact rod, the driving columns are detachably connected with the impact rods, simulation is conducted by accurately adjusting the tool angle, and it is ensured that a test scene is highly matched with the actual working condition.

The invention provides a bumper assembly low-speed collision test system and method, and the system comprises a mobile barrier trolley, a universal rapid installation clamp, a multi-sensor integrated measurement module, and a data collection and processing system, and can adapt to different bumper assemblies to be tested through the universal rapid installation clamp, simulates the real collision process, and improves the test precision. In the process that the traction system drives the movable barrier trolley to move along the track to conduct the collision test, the multi-sensor integrated measurement module can collect collision data and draw a data curve, and the accuracy of the collision test result is improved. And then the data acquisition and processing system scores the maintenance economy, the energy absorption efficiency, the passenger protectiveness and the structural integrity according to the collision data and the data curve, grades the collision test result according to the scoring result, and finally can output a depth test report containing rating and improvement suggestions. The method is used for supporting and improving the design and optimization capability of the bumper assembly.

The invention provides a rail vehicle collision test system, which relates to the technical field of rail vehicle collision tests and comprises a collision simulation device, a wall body, a test vehicle body and a data acquisition device. The test vehicle body is configured to move towards the wall body at a preset speed, and dummy passengers are carried in the test vehicle body. The collision simulation device comprises an energy absorption assembly and an adjusting assembly, the energy absorption assembly is installed on the wall and suitable for colliding with the test vehicle body, and the adjusting assembly is configured to respond to the crumple amount of the energy absorption assembly in the collision process and adjust the counter-acting force applied by the energy absorption assembly to the test vehicle body so as to simulate the collision process of the real vehicle with the energy absorption structure. The data acquisition device is arranged on the dummy passenger and is suitable for acquiring data information of secondary collision of the dummy passenger in the test vehicle body.

The invention discloses a non-contact measurement system and method for full-field deformation of a fuselage in an airplane crash test, and belongs to the technical field of airplane structure strength testing, and the method comprises the steps: making a high-quality speckle pattern on the surface of the fuselage, and laying cooperation mark points; a binocular camera flexible self-calibration method is used for completing calibration of the stereo measurement system; unification of global coordinates of multiple systems is assisted through unmanned aerial vehicle photogrammetry; a synchronous controller is adopted to trigger multiple sets of systems to synchronously collect images in the falling and collision process; obtaining the motion trail and speed of the key measuring point based on a mark point positioning tracking and stereoscopic vision principle; acquiring a full-field three-dimensional displacement field and a strain field based on a digital image correlation method guided by a control point and a stereoscopic vision principle; and deformation visualization representation is realized through image splicing and data fusion. According to the invention, non-contact, high-precision and full-field dynamic measurement of the three-dimensional deformation field in the falling and collision process of the whole large aircraft is realized, and technical support is provided for analysis and evaluation of falling adaptability of the aircraft structure and verification of anti-falling and anti-collision design.

The invention belongs to the technical field of dummy detection, and particularly relates to a collision test dummy-oriented calibration full life cycle prediction system, which comprises a data source layer, a data layer, a core layer and an application layer, the data source layer covers dummy calibration full-scene data; the data layer accesses multi-source data through an acquisition and storage module and preprocesses and stores the multi-source data, and a time sequence construction module constructs a time sequence data set according to dummy IDs and component IDs; the core layer completes performance degradation modeling and residual available life prediction based on a multi-model fusion algorithm; and the application layer receives the prediction result, automatically updates a dummy state, pushes a spare part purchasing demand and visually displays the spare part purchasing demand. The problems that dummy calibration management depends on manual operation, and systematic data integration and intelligent analysis means are lacked in the prior art can be solved.

The invention relates to a method for creating a user-specific virtual dummy model (50) for carrying out computer-aided crash test simulations for the certification and improvement of design parameters of parts and components of a vehicle, comprising the following method steps: - Recording time series of stress values ​​of a real dummy (10) and of time series of an impactor (20) using sensors (250) and storing the time series as input data (350); - Processing the input data (350) with a software application (450) for dimension reduction in order to convert the input data (350) into simpler numerical values ​​(features); - Transferring the converted input data (350) to a trained AI model (430), wherein the AI ​​model (430) is at least designed as an AI regression model; - Calculating a user-specific virtual dummy model (50) with at least one fixed value for at least one input parameter (55), wherein an input parameter (55) relates to at least one property of the real dummy (10) or at least one experimental boundary condition of a certification test of the dummy (10), - Outputting the user-specific virtual dummy model (50) as output data (550).

The invention belongs to the technical field of detection devices, and particularly relates to an elevator landing door strength detection device, which comprises a support mechanism, an impact mechanism, a fixing mechanism and a test mechanism, and is characterized in that the impact mechanism performs self-adaptive strength impact on the surface of a door plate body according to test requirements during working; when the impact mechanism works, the fixing mechanism is automatically driven to work, the two sides of the door plate body are clamped and fixed, and meanwhile the clamping strength of the door plate body is adjusted in a self-adaptive mode according to the impact strength of the impact mechanism. When the fixing mechanism starts to work, the testing mechanism is automatically driven to work, the door plate body to be impacted is preprocessed, data of the maximum deformation quantity generated after the door plate body is impacted is marked in real time, the elevator landing door strength detection device replaces a traditional elevator landing door strength testing mode, and the detection efficiency is improved. The problem that the test accuracy is affected due to the fact that the deformation quantity in the impact test process is not accurate enough is solved.

The application provides a crash dummy, and relates to the technical field of crash dummies, and can improve the reliability of crash test data. A chest segment spine structure of the crash dummy comprises at least two first rigid thoracic vertebra pieces and at least two flexible thoracic vertebra pieces, the first rigid thoracic vertebra pieces and the flexible thoracic vertebra pieces are alternately arranged along the extension direction of the chest segment spine structure and sequentially connected in a head-to-tail mode, a rib piece is fixedly connected with the first rigid thoracic vertebra piece, the rib piece is arranged in one-to-one correspondence with the first rigid thoracic vertebra piece, and the at least two rib pieces are all slidably connected with a sternum piece along the extension direction of the chest segment spine structure. The compression and expansion of the flexible thoracic vertebra piece enable the chest segment spine structure to produce bending, stretching and lateral bending movements, the crash dummy can produce forward bending, backward bending and lateral turning responses, the injury condition of the crash dummy in a crash is consistent with the injury condition of a real human body, and the reliability of crash test data can be improved.

The utility model belongs to the technical field of automobile crash test equipment, and particularly relates to a barrier trolley with a vertical dynamic response characteristic, which comprises a trolley frame, and a wheel assembly, a brake control system and a suspension system which are assembled on the trolley frame, and the suspension system is used for providing the vertical dynamic response characteristic for the trolley frame. Comprising an upper suspension mounting plate, a shock absorber assembly, a tire mounting plate and a lower suspension mounting plate, one end of the upper suspension mounting plate is fixed to a trolley frame, the other end of the upper suspension mounting plate is fixedly mounted to the shock absorber assembly, the middle of the tire mounting plate is fixed to a wheel assembly, one end of the tire mounting plate is fixedly mounted to the shock absorber assembly, and the other end of the tire mounting plate is fixedly mounted to the lower suspension mounting plate. And the suspension lower mounting plate is fixed on the trolley frame. According to the utility model, the problem that collision test results are affected due to lack of vertical dynamic response of the barrier trolley in the prior art can be solved.

The utility model provides a kind of analytical modeling method of model measuring point three-dimensional coordinates and Euler angle, the utility model is suspended under crossbeam by crane by scanning workpiece, solve the deformation problem of large thin-walled part different from its working posture due to the workpiece to be scanned by gravity, scanner is installed at the end of manipulator, realize all-around scanning to workpiece, according to the distance signal of scanner to control the scanning distance between scanner and workpiece to be scanned, solve the fatigue of operator long time handheld scanner, while can stably keep scanner and workpiece to be scanned directly optimal scanning distance, the utility model can satisfy the automatic scanning of different size sheet metal parts in whole vehicle reverse engineering, solve the deformation problem of large sheet metal part different from its working posture due to gravity when being placed on traditional scanning platform, while three-dimensional coordinates and Euler angle of measuring point in whole vehicle crash test and body-in-white modal test can be obtained quickly, improve scanning efficiency, shorten reverse engineering cycle etc.

The invention relates to a system (100) for optimizing the configuration of crash tests and simulations for vehicle development. The system (100) comprises a data preparation module (200) that splits a data set (210) containing crash test and simulation data into a first training data set (210), a validation data set (230), and a test data set (240); a training module (300) with a first AI model (350) for creating configurations of physical crash tests and virtual simulations, wherein the first AI model (350) is trained with the first training data set (220); and a data value module (400) that calculates data values ​​(φ(i)) for the data points (i) of the crash test and simulation data of the training data set (220) with respect to the validation data set (230).a model optimization module (500) comprising a second AI model (550) and a training data generator (570), wherein the training data generator (570) creates a second training data set (580) which is used to train the second AI model (550) to predict the relationship between input parameters (p) and the computed data values ​​(φ(i)); a parameter module (700) which uses the trained second AI model (550) to find crash test parameters with a maximum data value (φ(i)).

The invention provides a strength detection device for airplane aviation accessory production, the strength detection device comprises an auxiliary simulation mechanism, cutting assemblies, a support block, a pipeline and an air cannon assembly, bird corpses are replaced by a gel block, three surfaces of the gel block are cut through cooperation of the three cutting assemblies, so that the gel block is cut into a three-dimensional prismatic body, and the three-dimensional prismatic body is used for detecting the strength of the airplane aviation accessory. The approximate size and shape of a bird during flying are simulated through the prismatic body, and weighing is carried out through the pressure sensor, so that the size, weight and flying attitude of the bird as close as possible to the reality are completed, and the impact test closer to the actual condition is completed in cooperation with the use of an external clamping device and the impact on accessories such as wings and the like. And the experiment effect and efficiency of bird impact are further improved.

The application discloses a kind of battery plate strength test systems, it is related to the field of plate strength test, including multi-angle tooling device and array type impact test device, multi-angle tooling device includes pedestal, first tooling platform, second tooling platform and tooling side plate, first tooling platform is rotatably installed on pedestal, second tooling platform is rotatably installed on first tooling platform, the rotation axis of first tooling platform is perpendicular to the rotation axis of second tooling platform in horizontal plane, array type impact test device includes impact base plate, lifting drive plate and impact lever, several impact levers are slidably arranged on impact base plate, several impact levers are arranged in rectangular array, lifting drive plate is arranged above impact base plate, lifting drive plate is arranged with several drive columns in rectangular array, each drive column is configured with an impact lever, drive column is detachably connected with impact lever, simulate by accurate adjustment tooling angle, ensure that test scene and actual working condition are highly consistent.

The utility model provides a multi-dimensional force sensor for an automobile crash test, which relates to the field of multi-dimensional force sensors and comprises a supporting assembly, a measuring assembly is mounted on the surface of the supporting assembly, the supporting assembly is used for supporting the measuring assembly, and the measuring assembly is used for measuring crash data. The supporting assembly comprises a supporting rod, a lug plate, a first elastic clamp, a second elastic clamp, a supporting plate and a fastening bolt. According to the utility model, through cooperation of the supporting rod, the lug plate, the first elastic clamp, the second elastic clamp, the supporting plate and the fastening bolt, a stable supporting effect can be provided for the measuring assembly, and through cooperation of the second elastic clamp, the supporting plate and the fastening bolt, the installation position of the measuring assembly can be adjusted. Through cooperation of the supporting rod, the lug plate, the first elastic clamp and the fastening bolt, the measuring assembly can be supported, the measuring accuracy and reliability of the measuring assembly are ensured, and therefore the accuracy of the measuring result is effectively improved.

The utility model relates to the field of collision test devices, in particular to a steel pipe anti-collision test device for a new energy vehicle lithium battery shell, which comprises a T-shaped base, a vertical column, a steel pipe fixing frame, a top frame, a collision mechanism and a control console, a stand column playing a supporting role is arranged at the rear end of the T-shaped base, a top frame is arranged at the front end of the top of the stand column, an impacting mechanism used for impacting a steel pipe is arranged at the lower end of the top frame and comprises six sets of impacting push rods, and impacting push blocks are fixedly installed at the lower ends of every two sets of impacting push rods. The lower ends of the three groups of impact push blocks are respectively provided with impact tool bits with different shapes, the front end of the top frame is provided with a console for controlling the testing device, and two groups of steel pipe fixing frames for fixing steel pipes are symmetrically arranged below the impact mechanism; the circuit of the impact mechanism is controlled by the console to be switched on, so that the six groups of impact push rods respectively push the three groups of impact push blocks to press and impact a steel pipe, and the three groups of impact push blocks push the impact tool bits with different angles and radians to impact the steel pipe.

The invention relates to a computer-implemented method and system for indirectly measuring, by means of a trained machine learning model, deformation parameters for a crash test of a vehicle to be analyzed, having the following work steps: • detecting geometry parameters of a plurality of different vehicles, the parameters being measured by means of a sensor; • calculating a location probability distribution for each component and / or assembly, in particular each crash-relevant component and / or assembly, within a vehicle configuration space of the vehicle to be analyzed, the location probability distribution being derived from the detected geometry parameters; • determining boundary conditions with respect to the vehicle structure, in particular the arrangement of the components and the rigidities thereof, of the vehicle to be analyzed; • determining the vehicle structure, which is characterized by at least one geometry parameter, of a vehicle to be analyzed on the basis of the boundary conditions and the location probability distribution; • detecting at least one material parameter of individual portions of the vehicle structure, said parameters characterizing the mass, plastic properties, and elastic properties, in particular moduli of elasticity and flow curves, of the individual portions of the vehicle structure, the at least one geometry parameter and the at least one material parameter forming vehicle data relating to the vehicle to be analyzed; • calculating output data means of the machine learning model on the basis of input data, the input data being based on the vehicle data and the output data comprising a value for at least one first deformation parameter for the intrusion into the vehicle to be analyzed; and • outputting the at least one value for the first deformation parameter. The invention further relates to a computer-implemented method and a system for training the machine learning model.

The application discloses a vehicle safety performance testing device and method, and belongs to the technical field of vehicle testing. The vehicle safety performance testing device comprises a main base plate, a test road arranged on the main base plate, a crashed dummy vehicle arranged on the test road and a protector arranged on the main base plate. The protector comprises an air bag which can be filled with gas after the crashed dummy vehicle is hit and abuts against the crashed dummy vehicle. The application can meet the actual crash test of a test vehicle.

The utility model discloses an engine crash test device, which is characterized in that a fixed seat fixes an engine, one end of the engine is provided with a crash plate, the fixed seat is provided with a plurality of adjusting bottom plates in parallel, one end of each adjusting bottom plate is provided with a first connecting groove, the fixed seat can rotate in the first connecting groove, and one side of each adjusting bottom plate is provided with an adjuster; according to the utility model, the adjustor is arranged, so that the placement angle of the engine can be adjusted, the test cost is low, the test period is shortened, the test efficiency is improved, and the test efficiency is improved. The collision device is simple in structure, the engine is fixed through the two supporting slopes, the overall structure is stable, and the engine is not prone to shaking when fixed.

In a device and method for detecting the position of an object during a vehicle crash test, a radar wave is emitted by means of a transmitting unit and the radar wave is received by means of a receiving unit, wherein the transmitting unit and / or the receiving unit is arranged on or in the object.

The present invention relates to a method and device for generating augmented reality graphic content representing a vehicle crash test. To this end, initial data representing a three-dimensional video sequence of a vehicle crash test involving a crash dummy are received (31). A digital twin is selected (32) from a plurality of digital twins, each digital twin of the plurality of digital twins being representative of a three-dimensional model of a dummy representing a person with a specific morphology.The augmented reality graphic content is generated (34) from the first and second data received (33) and corresponds to a three-dimensional model of the mannequin associated with the selected digital twin by replacing the mannequin in the three-dimensional video sequence with the three-dimensional model of the mannequin associated with the selected digital twin. Figure for the abstract: Figure 3.

A strain gauge applied to a component used in a crash test dummy is used to evaluate the component's performance during a crash test simulation. The strain gauge can be applied directly to the component's outer surface using 3D printing, or it can be printed onto a polymer film with an adhesive backing, which is then applied to the component's outer surface. The strain gauge can then be electrically coupled to a control unit via a wiring harness to measure a change in the strain gauge's electrical signal, corresponding to a change in the rib's strain occurring during a crash test simulation over a period of 10 to 200 milliseconds.

The application discloses a kind of aircraft crash test machine body full-field deformation non-contact measurement system and method, belong to aircraft structure strength test technical field, comprising: high-quality speckle pattern is made on the surface of fuselage and is laid cooperation mark point;Using binocular camera flexible self-calibration method completes stereoscopic measurement system calibration;Through unmanned aerial vehicle photogrammetry auxiliary multi-system global coordinate unification;Synchronous controller triggers multiple systems synchronous acquisition crash process image;Based on mark point positioning tracking and stereovision principle obtains key measuring point motion trajectory and speed;Based on control point guided digital image correlation method and stereovision principle obtain full-field three-dimensional displacement field and strain field;Realize deformation visual representation by image stitching and data fusion.The application realizes the non-contact, high-precision, full-field dynamic measurement of three-dimensional deformation field in the whole machine crash process of large aircraft, provides technical support for aircraft structure crashworthiness analysis and evaluation and anti-crash design verification.

The invention provides an impact test system applied to a new energy automobile charging pile, and the system comprises a bottom plate which is provided with a lower clamping structure. Through the arrangement of the three connecting plates, the mounting plate, the height adjusting structure and the impact frame, impact tests can be performed on different positions of the charging pile, comprehensive impact tests can be conveniently performed on the charging pile, the test range and precision are improved, and the impact height can be conveniently adjusted according to the size of the charging pile; through arrangement of the assembly plate, the guide rod, the sliding block, the spring, the first threaded rod, the first motor, a moving block, a sliding rod, a limiting structure, an impact frame, a threaded column, a balancing weight and a nut, the impact force of an impact test is adjusted, different impact forces are conveniently adjusted, and the range of the impact test is widened.

This utility model discloses a strength testing device, including a fixing fixture, a first force sensor, and a second force sensor. The fixing fixture is used to fix the test piece, the first force sensor is used to measure the load on the test piece in a first direction, and the second force sensor is connected to a force application device to measure the load on the test piece in a second direction. The first and second directions intersect, and the fixing fixture is disposed within the angle region between the first and second directions. This strength testing device can perform crash tests on subframes and other test pieces, and can simultaneously acquire loads in both the X and Y directions during the test, thereby providing effective data support for subsequent vehicle design verification.

The utility model provides a vehicle window impact testing device, belongs to the technical field of vehicle window testing, and aims to solve the problem that impact positions are difficult to flexibly adjust to cover full-range detection of glass when impact testing is carried out on a vehicle window through a plurality of groups of impact objects in the prior art. Comprising a support, a clamp, a first guide rail, a first slide rail, a second guide rail, a second slide rail and an impact device. The clamp clamps the car window; the first guide rail is arranged in the length direction of the support and slidably connected with the first sliding rail. The second guide rail is fixedly arranged on the first sliding rail in the width direction of the support and slidably connected to the first sliding rail. The impact device is installed on the second sliding rail. Through cooperative movement of the first sliding rail and the second sliding rail in a two-dimensional plane, the impact device is driven to be accurately positioned to any point position on the surface of the vehicle window, and dead-corner-free full-range impact testing is achieved. According to the utility model, a single group of movable impact devices is used for replacing traditional multiple groups of fixed impact objects, so that test blind areas are eliminated, and test comprehensiveness is improved.

The utility model is suitable for the technical field of sensors, and provides a two-dimensional force sensor and a crash dummy. The two-dimensional force sensor comprises a first mounting flange, a second mounting flange, an elastic body and a strain gauge. The first mounting flange is matched with the femoral head to at least transmit the stress of the femoral head; the second mounting flange is used for being fixed on the ilium; the elastic body is used for receiving force transmitted by the first mounting flange and generating deformation, and the first mounting flange and the second mounting flange are connected to the two opposite sides of the elastic body respectively; the strain gauge is attached to the elastic body. The first mounting flange is provided with the groove which is matched and connected with the femoral head, and the shape of the groove is matched with that of the femoral head, so that the connection of the femoral head can be well accommodated, the stress of the connection part can be sensitively detected, the detection accuracy is improved, and the detection efficiency is improved. And the effectiveness of the detection result of the collision dummy in the collision test is improved.

A crash test sled replicating the rear cargo area of a vehicle for testing safety of animals in the rear cargo area, occupants in a vehicle seat in front of the rear cargo area, or both, is disclosed. The crash test sled includes a cargo area structure having a floor, a wall, a seatback panel positioned forward of the floor, and a roof panel. The crash test sled further includes a sensor assembly configured to determine crash forces at areas of interest, including an impact force applied to the seatback panel during an impact event (e.g., crash). Optionally, the crash test sled further includes a horizontal member or a linkage assembly supporting the seatback panel.

This utility model discloses a tooling for testing automotive anti-collision beams, including a base plate. A fixing plate is mounted on the top center of the base plate, and fixing seats are mounted on the front and rear ends of both sides of the fixing plate. The anti-collision beam body is fixedly connected to the inner side of the fixing seats. Adjustment mechanisms are provided on the bottom sides of the fixing plate to adjust the synchronous separation or opposite movement of the fixing seats. This utility model, through its reasonable structural design and the coordinated work of its components, provides multiple beneficial effects for automotive anti-collision beam testing. Its stable support and fixing structure ensures the accuracy of the testing. The reinforcing plate enhances the connection stability between the fixing plate and the base plate. The vertical limiting achieved by the hydraulic rod driving the pressure plate, combined with the lateral positioning of the energy-absorbing plate, effectively prevents the anti-collision beam from tilting or shifting during impact testing, making the test data more realistic and reliable, and providing accurate basis for evaluating the quality, strength, and other performance characteristics of the anti-collision beam.

The utility model discloses an anti-collision testing device for an automobile bumper, and belongs to the field of automobile bumper testing. The anti-collision testing device for the automobile bumper comprises a base, an impact block is arranged in the middle of the upper end of the base, a first clamping block is arranged at one end of the impact block, and first rollers are arranged on the two sides of the impact block. According to the utility model, the problem that the impact block is easy to bend and damage due to the fact that the sliding position of the impact block and the adsorption position of the electromagnetic block deviate relatively far and the adsorption position of the electromagnetic block is also far away from the force storage spring in the test process of the existing automobile bumper impact test device is solved; the two sides of the impact block are rotated and supported in the corresponding directions through a first roller and a second roller correspondingly, so that the impact block is stable in the impact and reset process, and the impact block is evenly stressed in cooperation with adsorption in the middle of the rear end of the impact block and pushing of springs on the two sides.