287 results about "Load testing" patented technology

The invention relates to the technical field of pile foundation testing, in particular to a test pile load testing method and a loading structure, and the method comprises the following steps: testing preparation: establishing a real-time data acquisition link; graded loading: graded loading: collecting pile top settlement-time sequence data in real time at the load holding stage of the current load stage; self-adaptive load holding judgment: calculating a settlement convergence trend based on settlement data acquired in real time under the current load level; if the prediction model judges that the settlement is fully converged under the current load level, directly entering the next load level without waiting for the settlement rate to be reduced to a fixed threshold value; if the prediction shows that the settlement cannot be converged or tends to be damaged, triggering damage early warning and turning to a damage treatment flow; continuously detecting, namely repeating the step of graded loading and the step of self-adaptive load holding judgment until a preset maximum test load is reached or damage is triggered; and evaluation: evaluating the bearing capacity of the pile foundation. The test efficiency is improved, and the intelligent degree is improved.

The invention discloses a multi-mode fusion power semiconductor module full-automatic detection system and method, relates to the technical field of semiconductor testing, constructs a multi-topology loading module, and realizes mechanical load testing under a frequency converter working condition, electrical load simulation under a grid-connected working condition and static electrical parameter testing. And covering dynamic and static performance detection of the module in a multi-application environment. A multi-source temperature monitoring and weighted fusion technology is introduced, and precise regulation and control of local junction temperature, surface temperature and radiator temperature of the module are realized. Dynamic switch characteristics are extracted from various collected data through wavelet transformation, and module failure probability prediction is completed in combination with a Weibull life model. Automation of whole-process data analysis and detection report generation is achieved, and the test efficiency and the evaluation intelligent level are improved. The method is suitable for multi-scene performance evaluation and reliability analysis of the power semiconductor module.

The invention discloses a multi-station collaborative operation robot group scheduling control method and system, and relates to the technical field of industrial robot control, and the method comprises the steps: obtaining and fusing multi-station vision and point cloud data, and determining the task pose information of each station of a robot group; according to the allocation task, the planning path and the registration divergence rollback re-collection data, obtaining an operation allocation result; then, correcting the pose by sensing the filtering binding force-displacement relation through near-field operation force; analyzing and identifying abnormity of the low-load test binding force data trend in operation; a scheduling control result is generated in combination with task feedback adjustment parameters; and finally, frequency optimization is constrained by an environment interference threshold value, and a multi-station cooperative scheduling scheme of the swarm robots is obtained. According to the method, the technical problems of insufficient pose precision, serious equipment interference and abnormal response lag of the robot group in multi-station operation are solved, and the technical effects of accurate pose control, timely abnormal identification and efficient cooperative scheduling of the multi-station robot group are achieved.

The invention relates to the technical field of automobile testing equipment, and discloses a new energy automobile chassis load testing device which comprises a testing table, a ramp is connected to one side of the surface of the testing table, electric sliding rails are symmetrically installed on the two sides of the testing table, and walking frames are slidably arranged in the electric sliding rails. Telescopic rods are arranged on the two sides, close to each other, of the walking frame, pressure detection mechanisms are arranged at the tops of the two sides of each telescopic rod correspondingly, each pressure detection mechanism comprises a mounting plate, the mounting plates are fixedly connected with the two sides of the corresponding telescopic rod correspondingly, and hanging rods are fixedly mounted on the two sides of the center of the bottom of each mounting plate; the bottom of the hanging rod is hinged to a swing arm, an extension arm is movably installed in the swing arm, and the sides, close to each other, of the extension arm are rotationally connected with a gravity roller, the driving test of various different items can be simulated, continuous running is achieved, the integration degree is high, and the test time is highly saved.

The utility model discloses a metal material constant load testing device suitable for a hydrogen environment, which comprises a high-pressure gas storage bin, the high-pressure gas storage bin is hermetically connected with an upper bin cover and a lower bin cover, the upper bin cover is provided with a gas inlet pipeline, the lower bin cover is provided with a gas outlet pipeline, the high-pressure gas storage bin is filled with hydrogen, the upper bin cover is provided with an upper loading rod, and the lower bin cover is provided with a lower loading rod. The upper end of an upper loading rod is connected with a loading head, the lower end of the loading rod extends into the high-pressure gas storage bin, a load sensor is installed on the upper loading rod, a lower loading rod is arranged on the lower bin cover, the upper end of the lower loading rod extends into the high-pressure gas storage bin, the lower end of the lower loading rod is connected with a base, the lower end of the upper loading rod is provided with an upper connector, and the upper connector is connected with a lower connector. A lower connector is arranged at the upper end of the lower loading rod, a constant-load sample is connected between the upper connector and the lower connector, an extensometer is mounted on the constant-load sample, and a temperature sensor and a pressure sensor are mounted in the high-pressure gas storage bin. According to the utility model, a high-pressure hydrogen test environment can be effectively provided, and the performance test of a metal material under a constant load is realized.

The invention relates to a ring main unit state remote early warning maintenance method and system integrated with AI diagnosis, and belongs to the technical field of intelligent operation and maintenance and monitoring control of power equipment. The method comprises the following steps: collecting load data of a power distribution branch, constructing a temperature-current bimodal grid to carry out a simulation load test on a ring main unit, and generating state data of the power distribution branch of the ring main unit; constructing an intelligent ring main unit monitoring and diagnosis model, analyzing voltage-current curves under normal and abnormal loads, and generating a ring main unit remote maintenance scheme; simulating and executing the remote maintenance scheme of the ring main unit through a digital simulation control method, and verifying an insulation degradation period of the ring main unit based on an electromagnetic interference simulation method to obtain state early warning information of the ring main unit; and setting a multi-level risk early warning value based on the remote maintenance scheme of the ring main unit, dynamically optimizing a maintenance period and an inspection strategy, and pushing a remote maintenance instruction of the ring main unit and state early warning information of the ring main unit through a cloud monitoring platform.

The invention relates to the technical field of data storage, and discloses a multi-platform dirty disk performance consistency testing method for a solid state disk, which comprises the following steps: acquiring configuration information of a to-be-tested solid state disk and recording a SMART data baseline; the method comprises the following steps: initializing a solid state disk, performing steady-state preprocessing in an empty disk state of the initialized solid state disk, and recording performance data at the moment as an empty disk reference; filling the dirty disk proportion of the solid state disk to a target value in a sequential or random write-in mode, applying a corresponding dynamic load model under the dirty disk proportion, and continuously performing performance sampling, recording performance data and generating a performance attenuation curve; and starting a CPU pressure test, a memory bandwidth test and a GPU load test at the background while running the solid state disk performance benchmark test. According to the SSD performance compatibility testing method and system, cross testing is carried out on two mainstream platforms of AMD and Intel, and the performance compatibility of the SSD in different system environments can be systematically evaluated.

A machine tool unit (1) is proposed, comprising a stator unit (2) and a rotor unit (3) with a measuring element (5) for detecting rotational movement and / or displacement and / or deformation, as well as a test device (12) for testing bearing loads. This device serves to measure the working and process forces of a force application or to determine the displacement, deformation, and movement during operation. For more precise machining, an axial sensor (6) and a sensor unit (7) are provided for determining the deformation and / or displacement based on the position of the measuring element (5) in the axial or radial direction, as well as the phase relationship between the position of the rotor unit (3) or spindle shaft (4), or the phase relationship determined by the force ratio of the acting forces. The axial sensor (6) is arranged such that it measures the deformation and / or displacement based on the position of the measuring element (6) in the axial direction.

The invention relates to a construction method of a load measurement unit. The construction method comprises the following steps: S1, manufacturing a guide frame structure; s2, a support structure is manufactured, specifically, the support structure is divided into two parts to be manufactured, and the two parts are a truss structure and a base structure; s3, machining the support structure; according to the construction method, the load test units are manufactured in a segmented mode, each segment is constructed in the four stages of scribing, manufacturing, welding and overall machining, the flatness is accurately controlled through the scribing stage, the precision of a follow-up machining datum plane is ensured, flatness out-of-tolerance caused by welding deformation is avoided, overall scribing is conducted after welding is completed, and the construction efficiency is improved. Welding stress deformation is eliminated, the relative position precision of all key components is ensured, accumulative errors of step-by-step machining are reduced, and therefore the rework rate is effectively reduced, the construction efficiency is improved, and meanwhile high-precision control over the load measuring unit is achieved.

The application discloses an AI acceleration card reasoning computing power benchmark test method and device, obtains reasoning load data and hardware configuration parameters, generates a load anchor point sequence through business scene feature joint labeling, constructs an initial load test set accordingly, quantifies concurrent throughput backoff features to generate a computing power benchmark atlas, directionally decomposes cumulative accuracy deviation in the test set, identifies two components of computing power sensitivity and bandwidth sensitivity, respectively obtains computing power correction and bandwidth bottleneck anchor points through utilization rate false reporting traceability and memory conflict frequency domain association, generates accuracy correction instructions and implements accuracy re-correction on the initial test set, performs cold start path loss detection and accuracy gradient monotonicity failure identification based on the corrected test set, locates false reporting consistency blind area anchor points, executes global optimization on the computing power benchmark atlas, and finally outputs benchmark test results, thereby improving the accuracy and business adaptability of AI acceleration card reasoning computing power benchmark test results.

The invention provides a dual-redundancy R-EPS steering system electronic power unit performance detection device, and relates to the technical field of steering system testing. The control unit is in communication connection with the upper computer; the actuating mechanism comprises a programmable load motor, the control end of the actuating mechanism is connected with the control unit, and the output end of the actuating mechanism is connected with a motor output shaft of the tested electronic power unit; the sensing feedback module comprises a plurality of sensors used for collecting operation parameters of the tested electronic power unit, and each sensor is connected with the control unit; the fault simulation module is integrated in the control unit, and the output end of the fault simulation module is used for connecting a fault injection node of the tested electronic power unit; wherein the programmable load motor, the sensing feedback module and the fault simulation module form an integrated test system for performing dynamic load test and active fault injection test on the tested electronic power unit under the coordination of the control unit. High integration and automation of the detection process can be realized, and the test efficiency and consistency are improved.

A method and system of determining reference to dynamic values is disclosed. A processor receives at least one testing scenario for load testing an application. At least one load testing script is determined based on the at least one load testing scenario. A natural language prompt is received from a user for identifying the reference to the at least one dynamic value within the at least one load testing script. The at least one load testing script and the natural language prompt is tokenized to generate a tokenized load testing script and a tokenized prompt. An LLM is prompted using the tokenized prompt to determine at least one tokenized reference corresponding to at least one tokenized dynamic value from the tokenized load testing script. The at least one tokenized reference is de-tokenized to determine an LLM determined reference to the at least one dynamic value.

This invention discloses a load testing device and method for high strain rate tensile testing. The device includes an elastic rod (1), strain gauges (2), a tensile testing machine (3), a clamp connector (4), and a data acquisition unit (5). One end of the elastic rod is fixed to the lower crossbeam (31) of the tensile testing machine, and one end of the specimen (6) is connected to the other end of the elastic rod through the clamp connector. The other end of the specimen is fixed to the upper crossbeam (32) of the tensile testing machine. Several strain gauges are spaced apart on the elastic rod, and the output ends of the strain gauges are connected to the data acquisition unit. Each strain gauge independently transmits its stress signal to the data acquisition unit. This invention can obtain ideal and reliable dynamic mechanical property data by decomposing the transmission and superposition of stress waves during material tensile testing at high strain rates, reducing the oscillation effect of load signals, obtaining the true stress loaded on the sample, and improving the accuracy of test results.

The invention provides a dynamic load testing method and device, electronic equipment, a medium and a program product, and can be widely applied to the technical field of testing. According to the method, the access state of the tested object is simulated through the test tool according to the target test parameter, and after the first performance index in the access process is received and collected, the target test parameter and the first performance index are input into the preset machine learning model to perform load test analysis on the tested object; therefore, the test process of all the load parameters needing to be tested can be completed without continuously manually adjusting the tested load parameters, the workload of manual adjustment and interference factors introduced in the manual adjustment process are reduced, and the test accuracy is effectively improved.

A drop hammer impact testing device for anchor bolts or anchor cables includes a lifting mechanism, a main frame, a hammer-grabbing device, a guide structure, a connecting structure, an impact force transmission mechanism, a hammer body, and a lifting rod. The main frame has a top plate at its top and a bottom plate at its bottom. The guide structure is located within the main frame, and the lifting mechanism is located on the upper surface of the top plate. The output end of the lifting mechanism is connected to the hammer-grabbing device, and the hammer body is located at the bottom of the hammer-grabbing device. Both the hammer-grabbing device and the hammer body are slidably fitted with the guide structure. This drop hammer impact testing device for anchor bolts or anchor cables solves the problem that the testing of anchor bolt or anchor cable support materials in related technologies focuses on static load testing, resulting in a lack of means to test the quality of anchor bolt or anchor cable support materials under impact loads.

The invention discloses a load testing method and device, equipment, a storage medium and a product. A hardware channel of a PCIe dummy load card is tested to obtain a hardware test result, and the PCIe dummy load card refers to a card for simulating heating values under different loads during a heat dissipation capability test of a liquid cooling system based on a PCIe interface; testing the control instruction of the PCIe dummy load card to obtain an instruction test result; testing the heating parameter of the PCIe dummy load card to obtain a heating test result; and determining whether the performance of the PCIe dummy load card reaches the standard or not according to the hardware test result, the instruction test result and the heating test result, and obtaining a performance result. According to the method, the PCIe dummy load card is adopted to simulate the PCIe card to generate heat to complete the performance test, and a more accurate dummy load card performance result is obtained through the three tests, so that more accurate and effective PCIe heating data is obtained, and the development speed of the heat dissipation capability of the liquid cooling system is increased.

This invention discloses a load testing mechanism for DC charging piles, relating to charging pile load testing technology. It includes a testing body and an operation panel on the front of the testing body, with a heat dissipation panel on the back. The testing body has insertion mechanisms on both its internal left and right sides, each including an insertion slot. A pull-out ring is provided on the outer side of the insertion slot. Support mechanisms are provided on both the external left and right sides of the testing body, each including a support arc plate. This load testing mechanism for DC charging piles connects to the charging gun of the charging pile via the testing body. The rotatable support arc plate inside the support side plate supports the charging gun. During load testing, the high temperature is de-energized by an electromagnetic ring, causing the charging gun to disengage from the insertion slot, thus preventing short-circuit damage to components due to high temperature.

The utility model discloses a packaging bag load testing machine which comprises a base, the base is connected with a bearing plate through a first supporting frame extending upwards, the bearing plate is connected with an upper cover through a second supporting frame extending upwards, a vertically-through through groove is formed in the bearing plate, a first air cylinder is installed on the upper side face of the upper cover, and a second air cylinder is installed on the lower side face of the upper cover. A first piston rod in the first air cylinder downwards penetrates through the through groove, and the lower end of the first piston rod is connected with a pressing plate through a pressure sensor. According to the packaging bag locking device, the hanging plate is arranged to lock a packaging bag, operation is convenient, a worker only needs to pull and sleeve the packaging bag outside the hanging plate, then a pneumatic top plate is pressed on the hanging plate, the packaging bag can be locked, and the automation degree is high; in addition, the hanging plate can stretch out and draw back, a packaging bag without a handle can be clamped between the top plate and the bearing plate to be locked, testing is facilitated, and the universality of the packaging bag clamping device is improved.

This invention discloses a pile cyclic load testing device with adjustable offset cyclic force loading function. The device includes a model box, a pile clamp, and an upper loading system. The upper loading system consists of a servo motor, an input shaft, a crank, a connecting rod, a rack, a gear, a gear shaft, a bidirectional torque limiter, a rack push rod, a buffer spring, an adjustable cantilever, a pulley, a loading cable, and loading weights. This invention allows for the adjustment of the torque limiter threshold, the weight mass, and the servo motor speed to achieve cyclic loads of different amplitudes, offset degrees, and frequencies. The mechanical transmission structure avoids frequent motor reversals, improving test stability and device lifespan. This device is suitable for studying the dynamic response of piles under cyclic loading conditions such as wind, waves, vehicle loads, and mechanical vibrations, providing a reliable testing method for pile foundation design and dynamic performance evaluation.

The utility model discloses a wheel stopper for a bogie static load testing machine, which comprises a fixed arm fixedly mounted on a guide rail of the testing machine, the fixed arm is 7-shaped, a rotating arm is movably mounted at the bottom of the fixed arm, a wheel stopping wedge block is fixedly connected to the top end of the rotating arm, and the wheel stopping wedge block is fixedly connected to the bottom end of the rotating arm. The lower portion of the rotating arm extends to form a transverse rod consistent with the installation direction of the fixed arm, a rotating shaft is movably installed on the transverse rod, a supporting rod is movably connected to the rotating shaft in an inserted mode, a balance weight is installed at the bottom of the supporting rod, a spring is connected to the portion, between the balance weight and the rotating shaft, of the supporting rod in a penetrating mode, and a limiting block is arranged on the upper portion of the supporting rod. When the guide rail of the testing machine descends, the counter weight slowly contacts with the cement boss on the site again, and the rotating arm is driven to rotate upwards under the pressure of the lower spring, so that the bottom surface of the wheel stopping wedge block is pushed to the surface of the rail, and the bogie is effectively prevented from falling off when entering and exiting the static load testing machine. The design does not depend on manual operation, so that the device is effectively suitable for high-efficiency production.

This invention relates to the field of building testing technology, specifically to a horizontal static load testing device, including a jack. The jack has an outer shell, and the outer shell has a guide groove. A buckle is slidably fitted within the guide groove, and the buckle has a collar. A hydraulic cylinder is slidably fitted within the collar. Both the hydraulic cylinder and the jack are connected to a hydraulic pump. The buckle engages with the testing device. This device, by using an outer shell and a spiral guide groove, applies an upward force to the buckle. This upward force is decomposed into an upward force and a horizontal force by the guide groove, thereby causing the buckle to spiral upward along the guide groove, effectively improving the installation efficiency of horizontal static load testing.

This invention discloses an ice-breaking load testing device and calculation method for the tail fin of an underwater vehicle model, relating to the field of polar submersible ice-breaking performance testing technology. The device includes a tail column with tail fins equidistantly mounted around its perimeter. A first tension / compression force sensor is installed at the upper middle of the front side of the tail column, with a distance from the tail column's central axis equal to 2 / 3 of the cross-sectional radius. A second tension / compression force sensor is installed on the left side of the bottom front side of the tail column, and a third tension / compression force sensor is installed on the right side of the bottom front side of the tail column. This invention allows for support from a fixed external end during use, enabling the measurement of applied forces. It also maintains the shape characteristics of the model's tail fin and allows for direct external sensor deployment, improving the efficiency and accuracy of data collection during operation.

The invention relates to the technical field of spaceflight launching equipment testing, in particular to a load test device and method for a fixed launching pad of a medium-large carrier rocket. The technical problems that in the prior art, a fixed launching pad load test device is insufficient in bearing capacity and single in loading mode, and multi-point loading and ballasting working condition tests cannot be met at the same time are solved. Comprising a test platform, a test tool, loading equipment and test equipment. The test tool comprises a base, a portal, a loading beam, a support and a lug, and is connected with a foundation embedded steel plate through bolts; the loading equipment consists of a plurality of hydraulic jacks and a hydraulic pump station, and is uniformly controlled by a PLC (Programmable Logic Controller) multi-point synchronous jacking control system; and the test equipment comprises a micrometer and a laser tracker and is used for accurately measuring the deformation of the fixed table body. The device is simple in structure, safe and reliable in structure, flexible in loading mode, high in bearing capacity and capable of achieving multi-point-position and multi-working-condition load tests with the maximum 2025 t ballast and 625 t pull load.

The invention provides an RPKI deployment influence assessment method and system based on virtual-real combination network simulation, and relates to the technical field of network communication security. The method specifically comprises the following steps: constructing a dynamically configurable high-fidelity network simulation environment based on a network simulation platform, a public internet data source, a routing protocol suite, an RPKI tool suite and a load test tool suite; constructing a data collector outside the network simulation environment, and carrying out protocol data collection, network flow collection and index data collection; and starting an abnormal event, and carrying out ROV verification analysis based on a Patricia tree and anomaly detection based on combination of K-Sigma and mode matching according to the collected data. According to the technical scheme, the potential influence of any ROA change can be accurately simulated, and the efficiency and accuracy of ROV verification analysis and the accuracy of abnormal event monitoring judgment during large-scale ROA deployment are improved.

The application provides a weak power grid full load test method and system for a dual sampling closed loop frequency converter based on SVG reactive compensation and orthogonal decomposition, and relates to the technical field of frequency converter testing. The method constructs a frequency converter full load circulating test loop, sets a first sampling point and a second sampling point respectively, establishes an equivalent control model, decomposes the frequency converter to be tested, uses a phase-locked loop to establish a synchronous rotating coordinate system, extracts the second sampling point feedback value and the first sampling point observation value through orthogonal decomposition. A dual closed loop control logic is used, a voltage reference value generated by a reactive loop is used to control the static reactive generator to output reactive current, the reactive loss generated by the internal phase-shifting transformer leakage is compensated, the system input side power factor is tracked to a preset target value, and load testing is realized in combination with an active loop. The application solves the coupling oscillation problem caused by leakage reactive under a weak power grid, realizes long time stable full load testing of a super large power frequency converter with a minimum power grid capacity.

The present invention provides a load-load testing machine capable of obtaining highly accurate deformation measurements over a wide range of excitation frequencies during dynamic testing. [Solution] The load testing machine 1 is characterized by comprising: a pair of specimen holding parts 12; a load generating part 13 capable of performing vibration operation on a specimen M11 over a predetermined vibration frequency range, with one of the holding parts 121 being the load-side holding part 121; a first sensor 14 capable of measuring the acceleration of the load-side holding part 121 in a first frequency range that occupies the high-frequency side of the vibration frequency range; a second sensor 15 capable of measuring the velocity or displacement of the load-side holding part 121 in a second frequency range that occupies the lower frequency side of the first frequency range while allowing partial overlap with the first frequency range in the vibration frequency range; and a deformation amount acquisition part 181 that acquires the deformation amount of the specimen M11 based on the measurement results of the first sensor 14 or the second sensor 15.

The application provides a rudder engine load test device and relates to the technical field of ship rudder engines, and comprises a mounting device, a self-adaptive load mechanism, a transmission head, a fixing screw one, a clamping groove seat and a clamping groove. The application has the characteristics of reasonable and simple structure, low production cost and convenient installation. Without customizing a complex connection structure for different types of rudder engines, the device can be quickly connected with the rudder engine through simple assembly design, greatly improving the universality and test preparation efficiency of the device, and reducing the equipment investment and maintenance cost. The application realizes the self-adaptive adjustment function of the load, can dynamically change the hydraulic oil input flow according to the rotating state of the rudder engine, makes the load force accurately match the rudder engine operation process, avoids the load mutation problem of the traditional rigid load structure, and effectively improves the authenticity and reliability of the test data.

The invention belongs to the technical field of cast-in-situ bored pile testing, and particularly relates to a horizontal load testing device of a pile and a method thereof.The horizontal load testing device comprises a forcing device and a measuring device which are arranged on the two sides of a test pile, the measuring device comprises a vertical beam arranged in a foundation pit, and two distance sensors are arranged on the vertical beam; the two distance sensors are respectively opposite to the pile body and the pile head; the forcing device is arranged between the test pile and the counter-force beam and comprises a supporting trolley, a jack, a force sensor and a connecting assembly, the jack and the connecting assembly are telescopically arranged in the supporting trolley, the jack extends out of the supporting trolley to abut against the counter-force beam, and the connecting assembly extends out of the supporting trolley to abut against a pile body; the force sensor is arranged between the jack and the connecting assembly. The device is compact in structure, foldable and modularized, can be easily installed at the bottom of a pit to carry out a horizontal load test, and efficiently solves the test problem beside a large pile head and at the bottom of a narrow foundation pit.

A system configured for simulating communication loads over a network, the system having: a controller module; an application module, operationally coupled over the network to the controller module, wherein the system is configured to execute a load test over the network with the application module, by: transmitting mock telemetry messages, associated with mock devices, representing internet-of-things (IoT) devices, to the application module, wherein the mock telemetry messages are equivalent to production telemetry messages sent from the IoT devices; and issuing an alert when the system determines that a result of the load test is indicative of errors above a threshold associated with receipt of the mock telemetry messages by the application module.