19 results about "Stress testing" patented technology

The present application relates to heat shrink sleeve test technical field, especially to a kind of stress test system of heat shrink sleeve, comprising: test module, to carry out stress test to heat shrink sleeve;Detection module is connected with the test module, including with the clamping device is connected to detect the area of wear area in clamping surface visual sensor;Clamping adjustment module is connected with the test module, to determine the micro-tilt angle compensation of clamping surface according to wear area area proportion in clamping surface;Sampling adjustment module is connected with the detection module and the clamping adjustment module respectively, to determine the weight distribution coefficient of low temperature sampling point according to the difference between actual temperature and target temperature in heating process;Cooling adjustment module is connected with the test module and the sampling adjustment module respectively, to determine cooling rate limit value according to cooling pipe surface dew coverage area proportion.The present application improves the stress test stability of heat shrink sleeve.

This invention discloses a sample loading fixture for stress testing, relating to the field of stress testing technology. The invention includes a base plate with several support components mounted on its bottom surface. A slide rail mechanism is fixed to the top of the base plate, and a support assembly and a testing assembly are connected to the top of the slide rail mechanism. The support assembly and the testing assembly are interconnected. A positioning seat is mounted at one end of the top surface of the base plate. A positioning component is provided on one side of the support assembly, and a pressure plate mechanism is provided on the other side. An adjustment mechanism is provided between the testing assembly and the base plate. A position counting component is provided on one side of the slide rail mechanism. This invention, through a stepped planning of the distance the support assembly is pulled, and by comparing the tensile force display of the force gauge and the tensile stress reading of the stress sensor, forms multiple regular test control groups. Coupled with a high-precision testing environment, this enables comprehensive measurement of tensile stress data and completes a comprehensive and accurate recording of the tensile strength of the substrate glass.

The invention relates to a method for improving stress test precision of a crack flexibility method in the field of stress test. The method comprises the following steps: step 1, cutting a stress test sample from a material to be tested; 2, pasting a strain gauge at a preset position on the surface of the sample I; 3, after the sample is clamped, a wire cutting machine is adopted to conduct progressive cutting along a preset path, the machine is stopped after cutting is conducted to the preset depth every time, strain data are recorded, and the average value of sample strain is calculated; 4, simulating a linear cutting process through finite element software, and calculating a flexibility matrix C; and 5, calculating the residual stress distribution of the sample based on the flexibility matrix C and the strain average value. According to the method, the condition number of the coefficient matrix can be effectively and controllably reduced by constructing the specific scaling matrix and carrying out row scaling processing on the solving equation; and the morbidity of solving the equation set is fundamentally improved.

This invention provides a risk stress testing method, apparatus, storage medium, and electronic device. The method includes: responding to a risk stress test command, determining the risk event to be tested and its scenario information; determining the data type of the risk event; the data type is either continuous or discrete; if the data type of the risk event is continuous, acquiring the corresponding measurement model; the measurement model is established based on historical risk data and historical scenario information of the risk event; inputting the scenario information into the measurement model to obtain the output result of the measurement model; determining the occurrence frequency of the risk event and the single-event loss value of the risk event based on the output result; and determining the stress test result of the risk event based on the occurrence frequency and single-event loss value of the risk event. This method can accurately obtain stress test results.

This application discloses a data processing method, which includes: performing a stress test on a first application based on a first request volume to obtain a first test result, wherein the first request volume is the concurrent request volume in each time unit of the stress test; determining a first increment based on the first test result; and performing a stress test on the first application based on a second request volume to obtain a second test result, wherein the second request volume is the sum of the first request volume and the first increment. In this way, by determining the concurrent request volume for the next stress test based on the test result of the previous stress test, the problem of inaccurate judgment of the stress test inflection point caused by excessive pressure increase can be effectively avoided, while also solving the problem of excessively long measurement time caused by insufficient pressure increase, thereby improving the efficiency of stress testing.

The invention provides a medical big model testing method and device, and relates to the technical field of data processing, and the method comprises the steps: constructing a dynamic medical knowledge graph, calculating the knowledge half-life period of a medical knowledge entity based on the dynamic medical knowledge graph, and obtaining a medical big model according to the relation among the current time, the release time attribute and the knowledge half-life period; calculating the timeliness score of each medical knowledge entity, screening the medical knowledge entities with the timeliness scores lower than a preset timeliness threshold value, and generating a dynamic test case; inputting the dynamic test case into a to-be-tested medical large model to perform a multi-modal timeliness test, screening out a high-value failure sample from a test result, and extracting an output conclusion of the medical large model for the high-value failure sample, performing semantic matching on the output conclusion and each historical version of medical knowledge entity in the medical knowledge entity version sequence, and positioning a failure knowledge node; and performing a pressure test on the medical large model.

The invention discloses an underground complex stress test method, and mainly solves the technical problem of uncertainty of a test result due to the fact that complex stress cannot be completely avoided when an underground stress test is carried out in the prior art. The method comprises the following steps: preparing a protolith sample which is the same as a to-be-measured geomedium, and then installing three stress meters in the protolith sample to obtain a test sample; calibrating the test sample through a quasi-static calibration experiment to obtain a static coefficient matrix of the test sample; calibrating the test sample through a dynamic calibration experiment to obtain a dynamic coefficient matrix of the test sample; placing the test sample in a to-be-tested geomedium, and acquiring and outputting an actually measured stress matrix of the three stress meters through a data acquisition instrument; and calculating the actually measured stress matrix in combination with a calibration result to obtain a real stress matrix of the to-be-measured geomedium loaded on the test sample, thereby completing the test of the underground complex stress. The method can improve the accuracy of stress testing.

Embodiments presented provide for stress testing of downhole wireline formation testing equipment. Certain embodiments provide for stress testing of geological stratum which exhibit high permeability. A method to perform a stress test is disclosed. The method may comprise conveying a bottom hole assembly on a drill pipe to a testing location and setting at least two packers at the testing location. The method may comprise performing an injection of a fluid obtained from the drill pipe into the testing location and stopping the injection of the fluid from the drill pipe. The method may comprise performing at least one breakdown cycle injection with the fluid from the drill pipe and determining when the at least one breakdown cycle injection with fluid results in an open reservoir. The method may comprise performing an injection followed by falloff cycles using surface based pumps and deflating the at least two packers.

The utility model relates to the technical field of mechanical property testing devices, and particularly discloses a test fixture for stress testing, which comprises a first adapter sleeve, a first hemispherical mounting piece, a second adapter sleeve and a second hemispherical mounting piece. The first hemispherical mounting piece and the second hemispherical mounting piece are both arranged to be hemispherical, the size of the first hemispherical cavity is matched with the size of the first hemispherical mounting piece, and the size of the second hemispherical cavity is matched with the size of the second hemispherical mounting piece. Compared with the prior art in which a U-shaped opening test fixture is adopted, the test fixture for stress test has the advantages that additional bending stress is effectively prevented from being added in the loading process, and the test fixture is simple in structure, convenient to operate and high in test efficiency. Therefore, the actual test force value is larger than the set value, and the test is easy to be invalid.

The utility model relates to stress test technical field provides a clamping device for stress test, including main part assembly: the main part assembly includes fixed plate and mounting plate, the mounting plate fixed connection is in the both ends of fixed plate, protection assembly: protection assembly includes U -shaped frame, guard board, plugboard and guide block, guide groove, observation window, the U -shaped frame fixed connection is in the front end of fixed plate, and the guard board sets up in the front end of fixed plate, and the plugboard fixed connection is in the rear portion of guard board, and the guide block fixed connection is in one end outside of plugboard. The utility model discloses through setting up protection assembly, through the auxiliary cooperation between U -shaped frame and guard board, can pull out guard board outward, and then through observation window observation makes the guide block slide in the inside of guide groove, can assist staff when using clamping device, provides the function of protection for it, avoids the waste material splashing and causes the staff to be mistaken for injury.

The utility model belongs to the technical field of medical instruments, and particularly relates to a front-end pressure testing connector assisting tile-type action, which comprises a blowing nozzle shell, an air inlet is arranged on the surface of the top of the blowing nozzle shell, and an air outlet is arranged on the surface of the bottom of the blowing nozzle shell. The connector at the bottom end of the blowing nozzle shell is connected with the connector of the pressure gauge pipeline, then the blowing nozzle shell is attached to the face of a patient, gas exhaled by the patient can be conveyed to the pressure gauge through the blowing nozzle shell, and therefore the force exerting degree of the patient during tile-type action can be estimated, and the patient can do the tile-type action conveniently. In this way, a patient can conveniently conduct blowing action through the blowing nozzle shell with the large air inlet size, convenience is brought to tile-type action testing, then an operator can wear and fix the blowing nozzle shell on the head of the patient through the elastic binding band, and the situation that after the hand, pressing the blowing nozzle shell, of the patient is loosened carelessly, the blowing nozzle shell is damaged is avoided. And the blowing nozzle shell directly falls off, so that the stability of the test joint in use is ensured.

This application discloses a diaphragm testing device and a diaphragm inspection method. The diaphragm testing device includes: a first cover plate and a second cover plate disposed opposite to each other, forming an installation space between the first and second cover plates for clamping an annular diaphragm to be tested; a sealing gasket disposed on the first cover plate for pressing the circumferential edge of the diaphragm to be tested against the second cover plate, and sealing the diaphragm between the first and second cover plates via the sealing gasket; a pressure application component disposed at the central hole of the diaphragm to be tested for pressing the diaphragm to be tested against the first cover plate; and fasteners for fastening the first and second cover plates together. Multiple pressure input ports are spaced apart from the center to the edge on the first and / or second cover plates, and these pressure input ports are used to introduce pressure during pressure testing of the diaphragm to be tested. This device can adapt to the testing of diaphragms of different sizes, achieving unified diaphragm testing and improving the economy of diaphragm testing.

The utility model relates to the technical field of bladder pressure testing, and discloses a sterile liquid pressure testing device which comprises a liquid inlet pipe, the lower end of the liquid inlet pipe is connected with a storage box body, and a detection installation structure is installed at the lower end of the storage box body. The detection installation structure comprises a spring installation pipe, a limiting ring, a conical spring, a first sealing plate, a supporting rod, a second sealing plate and a measuring assembly. According to the detection installation structure, the measuring assembly does not make direct contact with urine, the urine is blocked through cooperation of the arranged storage box body and the first sealing plate, the first sealing plate, the supporting rod and the second sealing plate are pushed to move downwards under the pressure of the urine, and the urine can be detected through the change of the air pressure between the second sealing plate and the measuring pipe. When the urine pressure is reduced, the reset effect of the first sealing plate can be ensured and the resilience force of the first sealing plate can be increased through the arranged spring tube and the conical spring when the urine pressure is reduced.

The invention discloses a system pressure test method, device and equipment and a storage medium. The method comprises the following steps of: pre-defining a pressure test scene, a multi-level performance index threshold value and an associated fusing control action to complete strategy configuration; and then automatically triggering the execution of the test task according to a preset timing strategy. In the pressure measurement process, the system collects performance index data in real time, compares the performance index data with multi-level threshold values, and automatically triggers corresponding fusing control actions (such as early warning, dynamic pressure degradation or immediate test termination) based on a comparison result, so that intelligent protection of the tested system is realized. And finally, automatically generating and sending a notification according to the fusing event or the test result. According to the invention, unattended operation and intellectualization of the whole process from task triggering, execution monitoring to safety intervention of the pressure test are realized, and the test efficiency and the system safety are remarkably improved. The method can be widely applied to the technical field of testing.

The application belongs to the technical field of OBU automatic distribution, and relates to an OBU automatic distribution and recovery method, system and equipment, which comprises the following steps: a user initiates a claim or return order containing an OBU type through an ETC applet, and synchronizes to an ETC self-service distribution platform. The platform pre-processes according to the order type: when a claim order, based on the spatial topology perception of the OBU automatic distribution equipment, searches for the storage unit mapped with the OBU type and locks it; when a return order, verifies the warranty information. After user authentication, the platform issues an instruction: claim to open the locked unit to distribute the OBU; return to open the recovery port, and perform multispectral imaging and radio frequency stress testing on the recovered OBU, combine the anti-disassembly switch state to output a state authentication code, and open the mapped unit to replace after verification. The equipment returns the execution result, and the platform updates the order, inventory and life cycle archives. The application realizes the integration of OBU self-service distribution and warranty replacement, and improves the operation efficiency and equipment safety.

The invention provides a pressure test method and system for bulk commodity transaction matchmaking. Wherein one or more virtual transaction scenes are constructed, and transaction requirements and market conditions between virtual buyers and virtual sellers are set; dynamically adjusting behavior parameters of the virtual buyer and the virtual seller according to the transaction demand and the market condition so as to simulate transaction behaviors under different market conditions; a random interference factor is introduced into each virtual transaction scene to simulate the influence of sudden market fluctuation on the transaction matching process; a transaction matchmaking result in a virtual transaction scene is monitored and recorded in real time, wherein the transaction matchmaking result comprises a transaction rate, average transaction time and an unsatisfied order proportion; and analyzing the system performance bottleneck based on the transaction matching result so as to test the stability and response capability of the system under the extreme market condition. According to the technical scheme provided by the invention, the performance of the system under various market conditions can be comprehensively evaluated, and the stability and response capability of the system are improved.

This application provides a stress testing method, including: obtaining traffic information of a to-be-tested object, where the to-be-tested object may be, for example, an object such as an application or a cloud service; generating, based on the traffic information of the to-be-tested object, a stress model matching a stress target, where the stress model includes at least one group of API request sequences, each group of API request sequences include at least one API request, and the stress target indicates an upper limit of stress that the to-be-tested object is capable of bearing; and then performing stress testing on the to-be-tested object based on the stress model. In this way, a technical level requirement for a test person can be reduced by automatically generating the stress model. In addition, the automatically generated stress model matches the stress target, so that a performance result obtained by performing stress testing by using the stress model is basically the same as actual performance of the to-be-tested object, thereby improving accuracy of stress testing. In addition, this application further provides a corresponding apparatus and a related device.

The utility model discloses an air path circulating system of a double-evaporator low-temperature incubator for an adverse situation test, which comprises a box body, a refrigerating system consisting of evaporators and a circulating fan is arranged in the box body, and an air duct is formed between the refrigerating system and the box body; two groups of refrigerating systems, namely a first refrigerating circulating system and a second refrigerating circulating system, which are independently distributed up and down are arranged in the box body, the two groups of refrigerating systems alternately operate, and two independent air ducts, namely a first air duct and a second air duct, are respectively formed in the box body; a one-way flow baffle is hinged to one side of an outlet of the second air channel, a limiting plate is arranged at the outlet of the second air channel, and the free end of the one-way flow baffle makes movable contact with the limiting plate or the inner wall of the box body, so that two sets of independent air paths are formed in the box body. The utility model belongs to the technical field of low-temperature incubators, and particularly aims to solve the problems of load of continuous operation of a single refrigerating system in the prior art and influence on heat exchange effect caused by easy frosting of an evaporator in a refrigerating process.

The application discloses a pressure decay test method and system based on gas elastic compensation, and relates to the field of sealing pressure test. The method comprises the following steps: connecting a to-be-tested sealed container to a test cavity provided with a gas elastic compensation module, applying a preset pressure test signal first, collecting pressure response and volume change data to identify elastic characteristic parameters of the container; then inflating the test cavity and the container to a target test pressure and entering constant pressure detection, adjusting the compensation amount in real time through pressure feedback control to maintain constant pressure and record the total compensation flow; calculating the theoretical elastic compensation flow based on the elastic characteristic parameters and the real-time pressure, and deducting the total compensation flow to obtain the net compensation flow, thereby determining the leakage rate and comparing it with the integrity standard to realize sealing judgment. Thus, the decoupling of leakage and elastic deformation effect can be realized under the condition of complex elastic structure and small head space, and the detection accuracy and consistency are improved.