80 results about "Test figure" patented technology

The invention discloses a multi-modal data driven commercial vehicle frame performance prediction method and system. The method comprises the following steps: uniformly coding design variables of a frame; constructing a multi-modal performance response data set based on finite element simulation and test results of mass production vehicle models, and realizing fusion of simulation and test data by adopting a maximum mean difference and related alignment algorithm; constructing a graph perception Transform multi-task prediction model fusing the structure topology and the physical position features, and predicting key performance indexes of the frame under a plurality of typical working conditions; through weighted multi-task loss function joint training, an uncertainty mechanism is introduced to dynamically adjust task weights; and after training is completed, deploying to an inference engine to realize second-level prediction and support increment fine adjustment updating. According to the method, repeated modeling and solving processes are avoided, the frame performance prediction efficiency and the adaptive capacity are remarkably improved, and the method is suitable for rapid evaluation of the frame performance of commercial vehicles of various structural configurations and material types.

The invention discloses a transformer arc fault equivalent test device and a control method, and relates to the technical field of power equipment fault simulation and safety test, and the method comprises the steps: carrying out the corresponding high-pressure gas storage through a high-pressure gas storage unit according to target pressure data calculated by a choking flow dynamic coupling model; the quick release unit is used for matching fault duration according to the test trigger instruction so as to release the high-pressure gas stored in the high-pressure gas storage unit; the energy injection unit injects high-pressure gas into the test oil tank to form shock waves; the safety protection unit starts an interlocking protection mechanism based on the test data; the monitoring control unit controls each unit to act, monitors the operation process of each unit in real time, and obtains and identifies the validity of test data to optimize the test process; according to the invention, automatic test process control is realized, the arc fault key damage effect can be accurately quantified and reproduced, high-precision matching of pressure wave time domain characteristics is realized, and the reliability of a test result is ensured.

The invention provides an equivalent test device and method for exploring gravity energy storage power characteristics. The device is characterized in that a test circuit is connected with an upper computer after being connected to a power grid; the test circuit is built based on a gravity energy storage grid-connected type and is used for outputting a torque curve corresponding to an equivalent torque curve signal of gravity energy storage so as to equivalently convert the reference power of the gravity energy storage into the torque of a motor for an equivalent test; the upper computer is used for generating a torque curve signal based on the reference power of gravity energy storage and writing the torque curve signal into the test circuit; and measuring the network side power of the test circuit in the test as a test result. According to the invention, the topological structure can be flexibly changed according to the gravity energy storage grid-connected type so as to be suitable for equivalent tests of different gravity energy storage grid-connected schemes; limitation of a gravity energy storage test site can be overcome, power characteristics of the gravity energy storage system in steady-state operation under different grid-connected topologies can be truly restored, equivalent tests of gravity energy storage technologies of different power levels can be carried out, and the accuracy of power test data can be improved.

In order to solve the problems of parameter optimization blindness and insufficient reliability in the prior art, the optimization method of the integrated wheel red press forming process comprises the following steps: based on a response surface method, obtaining process variable data and carrying out a test; performing binomial fitting through a response surface method according to a test result to obtain a response model corresponding to each response value, performing variance analysis on the test result and the response model, determining a corresponding relationship between the process variable and the response value, drawing a response surface diagram, performing constraint and importance definition on the data value of the process variable and the response value, and obtaining a response model corresponding to each response value; the method comprises the following steps of: establishing a fault tree, solving pre-selected process parameters, and determining the die pressing size of the die according to a simulation result of a first-order forming process based on an upper-end first-order forming process, and the reliability evaluation system comprises the steps of establishing the fault tree, calculating the reliability of the system and the probability importance of a basic event, and calculating the average fault-free time of the process through simulation.

The present invention discloses a BMC cold restart stress testing system, belonging to the field of computer firmware technology. The system includes two types of devices: a test host and a tested server. The test host can be connected to multiple tested servers via a network. The test host provides a writing environment for server BMC test scripts. Testers will write a test script instance for BMC cold restart. The completed script will be sent to the tested server via the test host. The test program of the tested server host operating system sends a test instruction to the BMC to execute the test script, obtain the BMC test results, and automatically generate a test report to complete the BMC cold restart test. The present invention can improve the efficiency of BMC cold restart testing, increase the coverage of BMC interaction and status judgment, and realize the flexible expansion of BMC configuration parameters.

The invention relates to the technical field of oil product performance tests, in particular to a small portable detection tester control method, device and equipment and a storage medium, and the method comprises the steps: obtaining a detection instruction; acquiring spectral characteristics of the test article in real time; outputting a rapid cooling signal based on the detection instruction; whether the test article is solidified or not is judged in real time based on the spectral characteristics; and if the test article is solidified, stopping outputting the rapid cooling signal and outputting a first slow cooling signal. The method has the advantages that the automation degree can be improved, the accuracy of test results is improved, and time waste is reduced.

The present invention discloses a method for model test of the amount of water boarding on the open cargo hold of an open box ship in waves, which includes: Step 1, simulating the test environmental conditions and test objects; Step 2, conducting tests, including preliminary tests and basic tests; Step 3, evaluating the test results. The present invention has a wide application range and high accuracy of test results.

The invention provides an aeronautical equipment task reliability assessment method based on prior information, and the method comprises the steps: determining the minimum sample demands of a task reliability test under different failure samples according to the technical demands of aeronautical equipment task reliability assessment and the characteristics that the data of the aeronautical equipment task reliability assessment are distributed in a Bernoulli test result; determining available test samples according to existing prior information of the aviation equipment, analyzing data characteristics, and setting beta distribution as prior distribution; according to the number of historical serious quality problem samples of the equipment, a supplementary test profile design is determined according to a task reliability test technology, and a subsequent supplementary test implementation scheme is designed; and according to a supplementary test result of subsequent supplementation, in combination with the Bayesian theorem, a posterior density function is determined, and a task reliability level under a corresponding confidence condition is given, so that the problems that a conventional task reliability evaluation model is not applicable and the demand quantity of supplementary test samples is large are solved.

The invention discloses an automatic construction method of a simulation-test data fusion database for a drawing process. According to the method, aiming at the characteristics of large plastic deformation, complex stress-strain distribution, remarkable microstructure evolution and the like of a material in a drawing process, automatic data analysis and batch processing scripts are developed in combination with multi-scale finite element simulation data and a limited number of drawing test data, global macro-micro physical field variables and time sequence information are extracted in batches, and a large-scale drawing process is established. Constructing a relational database of multi-level indexes; an error function of a simulation result and a test result is established, a target function is constructed through DTW, optimal parameter correction target variables are solved through trust domain Bayesian optimization, and dynamic correction and automatic updating of simulation data in a whole process window are achieved; the finally constructed database can completely record drawing process parameters, mold geometry, space-time coordinates and physical field evolution information, supports rapid retrieval and accurate traceability, and provides reliable data support for process optimization, quality prediction and intelligent control of the drawing process.

The present invention provides a resin bed life assessment method based on a multiple regression model, comprising the following steps: 1) resin bed operation monitoring test: test equipment, test parameters and test results; 2) prediction model: mathematical modeling, numerical analysis, least squares method, polynomial regression and multiple regression analysis; 3) prediction model construction and verification: model establishment, prediction model verification and prediction model application; mathematical modeling plays a good role in solving practical problems and involves a wide range of application fields; it requires the integration and application of various knowledge; it requires the cooperation of various technical means, etc., and a method of using multiple nonlinear regression to solve the model generally uses variable interchange to convert the nonlinear model into a linear model. This method improves the efficiency of calculation, increases the accuracy of calculation results, and realizes the life construction model processing and evaluation of the resin bed during its operation.

The invention discloses a new energy grid-connected hardware-in-loop simulation test method and system, and the method comprises the steps: generating a sinusoidal signal according to a preset signal parameter through an IO precision checking module, calculating the amplitude and frequency errors, and correcting a simulation model through an IO configuration module during the overrun, thereby effectively solving the problems of signal transmission misalignment and large test result fluctuation caused by IO drift. Meanwhile, by means of a test type lookup table module and an expected voltage generation module, a target power grid voltage waveform is automatically generated according to preset fault types, phases and time length parameters, port voltage is adjusted through an IO configuration module, an interaction test with a new energy controller is completed, the fault triggering moment is accurately controlled, and the fault triggering efficiency is improved. And the problem of unreliable test result caused by triggering randomness is avoided. According to the method, IO precision automatic checking and fault voltage waveform automatic generation are realized, the accuracy and consistency of test results are greatly improved, and the new energy grid-connected hardware-in-loop simulation test and comparison efficiency are remarkably improved.

The present invention relates to the technical field of test data processing, and specifically discloses a real-time data collection and report automatic generation system for a thermal shock chamber, including: a test execution and data acquisition module that real-time acquires an omnidirectional monitoring image of a test sample and the in-chamber environment data of the thermal shock chamber; a visual feature extraction module that extracts the visual features of each test impact resistance item at each analysis moment; a performance value analysis module that obtains the performance values of each test impact resistance item at each analysis moment based on the visual features of each test impact resistance item at each analysis moment; a test result optimization module that mutually references and optimizes the performance values of all test impact resistance items at all analysis moments during the current test process to obtain the real-time performance test results of each test impact resistance item; a report automatic generation module that generates a test process monitoring report; to achieve automatic data collection and report automatic generation during the thermal shock test process.

The invention discloses a method for quickly reducing the cooling temperature of a sample in a low-temperature impact test, which is characterized by comprising the following steps of: putting the sample into a low-temperature tank of an impact testing machine, adding alcohol to submerge the sample by more than 25mm, opening an air valve, slowly introducing liquid nitrogen, and keeping for a certain time after the temperature is reached, so as to ensure that the temperature is uniform. The invention aims to provide the method for quickly reducing the cooling temperature of the sample in the low-temperature impact test, and the method has the characteristics of high cooling rate, simplicity in operation, easiness in popularization and the like, and can meet the requirements of daily urgent test, completion of the test in a short time and provision of a test result.

The invention discloses an automatic voltage tester convenient for wiring, and relates to the technical field of voltage testers, the automatic voltage tester comprises a support frame, a voltage tester body and a wire, the voltage tester body is fixedly connected to the upper end of the support frame, the automatic voltage tester also comprises a positioning adaptation mechanism and a convenient wire plugging mechanism, the positioning adaptation mechanism and the convenient wire plugging mechanism are both arranged on the supporting frame, through the arrangement of the positioning adaptation mechanism and the design of a base plate, a supporting plate, an abutting column, a rotating plate and a clamping plate, in the process of carrying out a voltage test on a tested object, the abutting limitation on the clamping plate can be relieved through the gravity effect of the tested object, and the clamping plate is prevented from being damaged. The clamping plate can automatically clamp a tested object, position the tested object and stably place the tested object on the supporting plate, so that the stability of the tested object in the follow-up voltage test operation process is ensured, test errors caused by shaking or shifting of the tested object are reduced, and the accuracy and reliability of a test result are ensured.

The utility model discloses a static load test block safety protection device, which belongs to the technical field of constructional engineering detection auxiliary equipment, and is characterized by comprising a base, the front side and the rear side of the base are both fixedly connected with a protection assembly, the top of the base is fixedly connected with a detection assembly, and the detection assembly comprises a fixed support. The problems that an existing static load test detection device is poor in protection effect, when a test block is broken due to pressure in an actual static load test, generated fragments have large impact force and speed, the fragments cannot be prevented from flying around due to the lack of an effective protection structure, and the service life of the test block is prolonged are solved. The problems that in the prior art, surrounding operators are hit by splashed fragments, personal safety is endangered, surrounding detection instruments, recording equipment and the like are possibly damaged, test data are lost or inaccurate, reliability of test results is affected, and practicability of the device is reduced are solved.

The utility model discloses a universal elasticity modulus detection platform, the platform is composed of an upper platform, a lower platform and a shock absorption layer between the upper platform and the lower platform, the upper platform is composed of a working plane, a receiver guide rail and a tool groove, soft silica gel or plastic materials are laid on the working plane, and a sample is softly supported on the working plane during testing. According to the method, the requirement for a testing method in the standard can be met, the testing requirements of large samples and special-shaped samples which cannot determine node positions can be met, meanwhile, the problem that small samples shift in the testing process is solved, the samples can be directly placed on a testing platform in the testing process, operation can be conducted, and testing steps are simplified; the receiver guide rail is arranged on the test platform, the damping layer is arranged between the upper platform and the lower platform, and the supporting legs with the damping pads are arranged between the lower platform and the equipment placing platform, so that the influence of environmental vibration on a test result is reduced to the greatest extent, and measurement errors caused by environmental factors are avoided.

The invention discloses a robustness test design method and system for an equipment system, and the method comprises the steps: constructing an initial simulation test model and an initial test design scheme, and obtaining an initial simulation test result; randomly screening the initial simulation test results, and optimizing the robustness of the simulation test results; determining key test factors by using a variance analysis method; and through the key test factors, constructing a test design scheme with robustness, and evaluating the robustness of the test design scheme. According to the method, the uncertainty in test factors and test results and the scientificity and effectiveness of traction test design can be reduced, and the robustness of an equipment system test is improved.

The present invention discloses an intelligent clinical trial plan generation method and related devices, which include: labeling clinical trial knowledge data through a neural network algorithm to obtain labeling information, and performing data cleaning and language conversion on the labeling information before entering it into a knowledge base; obtaining the user's test purpose data, and obtaining the text information of the user's test purpose data through natural language recognition technology; training the user's historical test plan data and usage behavior habit data through a deep learning algorithm to obtain a trained test data model; inputting the text information into the test data model to obtain test results; inputting the test results into the knowledge base, generating a corresponding temporary test plan and knowledge system and sending them to the user; obtaining the user's improved content of the temporary test plan based on the knowledge system and generating a final test plan. The present invention can quickly provide users with relevant test plans through the model and knowledge base.

The present invention discloses a foundation bearing capacity test method and device based on centrifugal simulation, which belongs to the field of foundation bearing capacity test. The method includes: S1, taking foundation soil and measuring instruments; S2, preparing a foundation structure in a model box and fixing the measuring instrument at a predetermined position; S3, setting a strip foundation on the surface or inside of the foundation structure; S4, setting a load applying device in the model box and rigidly connecting it to the strip foundation to apply the load; S5, hoisting and fixing the model box in a centrifuge and applying centrifugal force according to a predetermined process, collecting the measurement results of each measuring instrument; after the preset conditions are met, applying the load to the foundation structure until the target termination conditions are reached, and collecting relevant data; S6, the test ends. The present invention can use the centrifugal simulation test method to achieve similar mechanical characteristics of the scaled physical model, providing a unique and effective foundation bearing capacity model test method, thereby effectively improving the reliability of the foundation bearing capacity model test results.

The utility model relates to the field of automobile inspection, concretely relates to a fall pit simulation test device. The device includes acceleration section, fall pit and deceleration section, acceleration section is at least 200m, fall pit pit depth is at least 120mm, pit width is at least 1000mm pit length is greater than test car width at least 400mm, pit edge chamfer is R10, deceleration section is at least 60m. This test device can be applied to the fall pit test of vehicle, and the strength of vehicle is tested and verified, and the application of the utility model can be based on user use scene data, and test result can very good reflect the use demand of user, and standard test device and operation process can provide stable boundary for design, and according to statistical result, a test is adopted to replace multiple tests, and the verification efficiency is very high, and the acceptance standard is refined, and strong support is provided for the consistency evaluation of test.

A device for a low stress triaxial test includes a test platform; a pressure chamber disposed on the test platform; a base disposed on the pressure chamber and fixed to the test platform; a support disposed on the test platform; a servo motor disposed on the support; a loading piston connected to the servo motor and penetrating into the pressure chamber; an axial force sensor disposed on the loading piston; a top cap detachably connected to the loading piston and covering the sample; a first pipeline connected to the base and passing through the test platform to connect with a measurement system; a second pipeline connected to the pressure chamber and passing through the test platform to connect with a confining pressure control system; and a third pipeline connected to the first pipeline and the top cap. The device can ensure the accuracy and authenticity of test results.

The invention belongs to the technical field of test equipment, and discloses a centrifugal constant acceleration tester and a centrifugal constant acceleration test method. According to the centrifugal constant acceleration tester, a plurality of test stations are uniformly distributed in the circumferential direction of a rotating arm, each test station is provided with a translation assembly, the output end of each translation assembly is provided with a rotating assembly, the output end of each rotating assembly is provided with a countertop, and a test piece is installed on the countertop; the translation assembly drives the test piece to radially move along the rotating arm, and the mounting radius can be flexibly adjusted according to size parameters and acceleration gradient requirements of the test piece, so that the acceleration of the test piece is accurately controlled; the rotating assembly can measure the weight loaded on the countertop and adjust the direction of the test piece, the function of automatic leveling of the rotating arm can be achieved, the leveling precision is high, the manual debugging time is shortened, the test convenience is improved, the test efficiency is remarkably improved, and the accuracy and reliability of a test result are improved.

The utility model relates to a testing device for testing the precipitation compaction characteristic of overlying strata separation grouting slurry, which comprises a slurry precipitation compaction characteristic testing assembly, a testing machine and a control system, and is characterized in that the testing machine comprises a compaction assembly and a base; the slurry drainage compaction characteristic test assembly comprises a sample barrel, the sample barrel is placed on the base and used for storing slurry, a drainage base is arranged at the bottom of the sample barrel, and a drainage channel is arranged in the drainage base; the water guide pipe is communicated with the drainage channel; the flow meter is connected to the water guide pipe, and a digital display water meter is arranged on the flow meter and used for monitoring water flow changes and providing real-time flow data; the control system is electrically connected with the testing machine and used for controlling the compaction assembly of the testing machine to pressurize the slurry. The test device can be used for carrying out compaction characteristic test research on overlying strata separation layer grouting slurry under different pressures, and the bearing capacity of a slurry consolidation body is evaluated based on test results, so that a reasonable basis is provided for grouting filling design.

The application discloses a follow-up loading test device, which comprises a foundation and left and right vertical columns on the foundation, wherein a test piece assembly, a radial loading actuator, a limiting cylinder, a sliding guide rail, a motion limiting structure, a wire pulling sensing device, a first pulley mechanism, a second pulley mechanism and an axial motion actuator are sequentially arranged between the right and left vertical columns; the axial motion actuator is controlled to work through a servo controller; the piston in the test piece assembly is moved through the pulling of the second pulley mechanism and the first pulley mechanism, and then the projectile is ejected. The application can meet the actual working conditions of some equipment or mechanism, the load borne by the equipment or mechanism changes with the change of the motion posture or the spatial position of the equipment or mechanism, when the test simulation verification is carried out, the test environment is highly consistent with the actual working conditions, and the accuracy, the reliability and the dynamic response capability of the test results are improved.

The utility model discloses a standard test block for calibrating a depth measurement dynamic error of a hamburger rut testing machine, belongs to geometric quantity measurement testing equipment, and aims to solve the technical problem of how to effectively calibrate the dynamic error of a depth measurement system of the hamburger rut testing machine. According to the technical scheme, the test block comprises a test block body, an arc groove part is formed in the center of the upper side face of the test block body, a zero reference plane is arranged on one side of the arc groove part, and identification scale marks are arranged on the other side of the arc groove part; spiral adjusting knobs are respectively arranged at the central positions of two end parts of the test block main body, and handles are respectively arranged at the central positions of two side surfaces of the test block main body.

The invention belongs to the technical field of digital reliability evaluation research, and particularly relates to a multi-source test data fusion calculation method based on simulation credibility. The method comprises the specific steps that simulation test data and real installation test data are collected, and compatibility analysis is conducted on the data based on the mean value and the variance of the simulation test data and the real installation test data; respectively extracting variance credibility and mean value credibility from the compatibility analysis result, and calculating simulation credibility; counting test success times in the simulation test data, and constructing success times service binomial distribution; carrying out statistics on the number of successful tests in the real installation test data, and constructing successful number service binomial distribution; obtaining posterior distribution of the simulation data through a Bayesian method and the simulation test data; calculating mixed prior distribution by using simulation credibility and simulation data posterior distribution; and based on the mixed prior distribution, the posterior weight and posterior distribution of the real installation test data are calculated, and the posterior distribution is a fused test result.

This invention discloses a test device and method for testing the bearing capacity of profiled steel sheet group nails. The test device includes a top frame and a bottom frame for supporting the profiled steel sheet. A temporary fixing device is provided between the top and bottom frames. Loading equipment connection devices are provided on the upper side of the top frame and the lower side of the bottom frame. A data acquisition device connected to the profiled steel sheet is provided on one side of the top / bottom frame. This invention can effectively prevent the adverse effects on the profiled steel sheet caused by the relative displacement of the frame during the installation of the test device, avoid the additional load generated by direct clamping of the loading end, and improve the accuracy and reliability of the test results. In addition, the test equipment is easy to install, simple to operate, and reusable, which greatly reduces the test cost, improves resource utilization, and has a broad application market and good development prospects.

A method for generating task reliability test samples for a reconfigurable ship electronic information system belongs to the technical field of ship electronic information system reliability testing. The present invention is to solve the problem of doubts about the credibility of the test results of task reliability assessment using existing digital simulation methods. It includes taking the failure time of each device as a test factor and determining the range of value parameters; calculating the coverage strength of different value parameters of the test factor based on the failure probability distribution function; then defining the test sample matrix form based on the number of test samples, the selected test factor dimension and the value parameter range of all test factors, and using the slime mold optimization algorithm to determine all value parameter combinations covering the selected test factors; combining the coverage strength of different value parameters of each test factor, so that all value parameter combinations are arranged in the test sample matrix from large to small according to the coverage strength, and the final test sample matrix is ​​determined to obtain reliability test samples. The present invention is used to generate reliability test samples.

The invention relates to the technical field of test devices, in particular to a compressor operation test bench and a use method thereof, and the compressor operation test bench comprises a rack, and a test bench, a docking mechanism and an operation mechanism which are assembled on the rack; the test bench is horizontally arranged, the docking mechanism is fixedly connected with the bottom of the test bench, and the operating mechanism is arranged opposite to the main shaft assembling end of the compressor; the operation mechanism comprises an operation support, an operation driving part, a rotating assembly and a telescopic assembly, and the operation support is fixedly connected with the working side of the rack; the rotating assembly is connected with the operation driving part, and one end of the telescopic assembly is movably connected with the telescopic assembly; when the telescopic assembly slides and stretches out along the axis of the rotating assembly, the other end of the telescopic assembly is in butt joint with the main shaft assembling end of the compressor, and the rotating assembly, the telescopic assembly and the main shaft assembling end of the compressor are driven to rotate synchronously when the operation driving piece works. The automatic execution of the compressor operation test is realized, the test efficiency is improved, and the accuracy and consistency of test results are ensured.