185results about How to "Comprehensive test data" patented technology

The present invention provides a real environment-based concrete cracking whole process test apparatus and test method, a main testing machine includes an environmental tank and a concrete specimen containing device arranged in the environmental tank, a specimen is placed in the concrete specimen containing device, a load system is connected with a movable clamp head on the concrete specimen containing device, and simulated real environment is provided in the environmental tank. The method comprises restraining stress, free variables, elastic modulus, deformation separation, and creep and other tests. In the whole process from pouring to hardening of test concrete, under a variety of temperature control conditions, the self temperature stress development process includes adiabatic temperature rise, thermal expansion coefficient, elastic modulus and creep and other parameter development process over time, a real meteorological environment can also be simulated, and temperature stress and cracking mechanism affected by natural factors are simulated. The device can set, according to the needs, different temperature and constraint conditions including thermal isolation, constant temperature, setting of the temperature rise and drop processes, and the like. Through the concrete cracking whole process simulation, concrete crack resistance can be evaluated.

The invention provides a reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench which is characterized in that two lead screw bearing seats of a T-shaped table between two guide rail mounting tables on a base are provided with lead screws connected with a motor; guide rails on the guide rail mounting tables are matched with guide rail sliding blocks; guide rail sliding block backing plates on the guide rails, a grating bar reading head on one guide rail mounting table and nut bases on the nuts of the lead screws are connected with the bottom of a stressed sliding table; one side of the stressed sliding table is meshed with a gear at the end part of the output shaft of a magnetic powder brake through a gear rack; the other side face of the stressed sliding table is opposite to a force application wheel of a transverse loading mechanism; and the upper part of the stressed sliding table is opposite to a force application wheel of a vertical loading mechanism. The test bench provided by the invention can be used for realizing the accelerated life test of three-way dynamic loading of multiple types of lead screw pairs and guide rail pairs, collecting test data required for evaluating the residual lives and degradation mechanisms of the lead screw pairs and the guide rail pairs in real time, and providing more reliable test basis for the design and maintenance of the lead screw pairs and the guide rail pairs.

The invention relates to a device and a method for simultaneously testing the permeability of compact rocks under transient state and steady state, and belongs to the fields of rock engineering and unconventional oil and gas reservoir engineering. The testing device for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises a three-shaft pressure chamber, a bias pressure control system, a confining pressure control system, an upper end permeating system, a lower end permeating system, a vacuum pumping system, a constant temperature system and a data controlling and collecting system. The method for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises the following steps: demarcating the reference volume, providing the confining pressure and bias pressure temperature environment for a sample, and testing the permeability under the transient state and the permeability under the steady state. For the device and the method, the practical bias pressure, back pressure and constant temperature testing environment conforming to the engineering is provided, the fluctuation error of the temperature can be controlled within -0.1 DEG C to +0.1 DEG C, the volume error of the gas can be controlled within 0.3%, and the error of the injected pressure can be controlled within 0.5%. The test of the permeability under the transient state in constant pressure and constant volume ways can be simultaneously realized; when the permeability is tested in the constant volume way, the volume of a reference container can be adjusted according to the volume of a pore.

The invention provides a concrete cracking overall process testing device based on a true environment. The device comprises a base, wherein an environmental box, a concrete sample containing device, a true environment simulation system and a loading system are arranged on the base; the environmental box is isolated from the surroundings; the concrete sample containing device is arranged in the environmental box and comprises a fixed chuck, a movable chuck and a sample middle fixed side formwork, the fixed chuck, the movable chuck and the sample middle fixed side formwork are spliced to form a concrete sample containing space, the fixed chuck is fixedly arranged in the environmental box, and the movable chuck is movably arranged; the environmental box and the concrete sample containing space are provided with temperature sensors; the true environment simulation system at least comprises a temperature regulation device which is arranged in the environmental box and the concrete sample containing device to simulate the set true environment at temperature; the loading system enables the movable chuck to be fixed or move in the axis direction, and a displacement / deformation sensor is arranged on the movable chuck to sense deformation of a concrete sample; a stress sensor is arranged to sense the load borne by the sample. The device can be used for testing the whole process of development of temperature, stress and other factors of concrete in a changeable environment from the test angle.

The invention belongs to the technical field of marine equipment, and particularly relates to a marine splash environment simulation test device, wherein stringed testing cable holes are arranged in the upper part of one side surface of the box-structured test box, a frame-structured drive pull rod is arranged on the other side, a splash plate angle adjusting rod is arranged at the lower part, and a splash plate is formed at the inner end of the splash plate angle adjusting rod; sensors and water inlets are arranged on the side surface of a liquid area from top to bottom; a gas exhaust opening, a ventilating and moisture exhausting device, an infrared heating lamp and a box temperature sensor are fixedly and sequentially arranged on the top side surface of the test box body from right to left; and a ultraviolet lamp, an air blower, a nozzle, a water spray pump, a liquid level controller, a dissolved oxygen sensor and a water drain opening are arranged on the opposite side of the test box corresponding to the side surface provided with the drive pull rod. The marine splash environment simulation test device has simple structure and higher automation degree, is convenient to operate, needs no staff attendance, and can simulate marine splash environment in a laboratory, so as to analyze and evaluate the corrosion and aging of the material.

The invention provides a concrete water cooling overall process testing device and method. A main testing machine comprises a concrete test sample containing device, and a test sample is placed in the concrete test sample containing device; a loading system is connected with a movable clamping chuck arranged on the concrete test sample containing device, a water cooling simulation system is arranged in a concrete test sample containing space and comprises a water pipe, the water pipe is provided with a water inlet and outlet connecting pipe which penetrates through the containing space to be connected with a water supplying device to form a loop, and the loop is provided with two executing mechanisms, that is, the cooling device and the circulating power device; a flowmeter and a water temperature sensor are arranged in the loop. According to the concrete water cooling overall process testing device and method, the self temperature stress developing process including the developing process of parameters such as adiabatic temperature rise, a thermal expansion coefficient, elasticity modulus and creep along with time of concrete in the overall process from pouring to hardening can be tested under the condition of multiple temperature control measures, and a true meteorological environment can be also simulated to simulate the temperature stress and the cracking mechanism which are influenced by natural factors. The device can set different temperature and constraint degree conditions including insulation, constant temperature, temperature rising and lowering process setting and the like as needed. The crack resistance of the concrete is evaluated through a concrete cracking overall process simulation test.

Disclosed are a rock vibration testing device and a method thereof, belonging to the technical field of construction engineering; the device comprises a sensor, a hose, a lead wire, a claw lathe dog, a connecting lathe dog and a protective metal casing; the sensor and the lead wire are connected through a lead wire interface on the sensor; the hose is sleeved outside the sensor; the protective metal casing is sleeved outside the lead wire; the hose is connected with the protective metal casing through the connecting lathe dog; the hose is fixed in a rock bore through the coated claw lathe dog and grout; and the tail end of the lead wire is connected with an automatic data collection device. The invention does not need to worry about the problems that the precision of the sensor can not be ensured as well as the sensor and the lead wire are damaged caused by flying rocks and mobile excavating machinery during the blasting excavation process.

The embodiment of the invention provides a micrometer order solid particle ignition burning test device under a jet stream condition. The device comprises four parts of a gas generator part, an afterburning chamber part, a sampling part and an observing part; the test device can change the ratio of fuel to an oxidant in the gas generator and realize stable controllable adjustment on mass and flow of solid particles, thus realizing the simulation of a working environment in the afterburning chamber of a ramjet of a solid rocket under different working conditions; a test process is monitored in real time by equipment such as a sensor and a high speed camera, a burnt product of the high energy solid particles is sampled in the test process, research on an ignition burning process of the micrometer order high energy solid in the afterburning chamber is realized, the test preparation time is shorter, the expense cost is lower, more observing methods can be used for a burning process in the afterburning chamber, more test data are obtained, the test system is good in reutilization, and engineering reference value of the obtained test data is high.

The invention discloses a testing system device for testing SF6 gas discharge decomposition product characteristics, which comprises a test transformer, a resistance capacitance divider, a gas discharge device, a single lens reflex, a discharge capacity detecting unit, a gas taking loop and a Fourier infrared spectrometer. Different discharge faults such as pin plate corona discharge, spark discharge, particle discharge and suspension potential discharge can be simulated; the Fourier infrared spectrometer with fast response and high accuracy is utilized to analyze gas decomposition product components and disciplines under different discharge faults; and an optical signal recorded by the single lens reflex and an electric signal recorded by an oscilloscope are combined to extract typical gas and characteristic quantity reflecting the discharge faults, so that a test and theoretical foundation is laid for applying an SF6 gas decomposition product to diagnose the running state of equipment. The testing system device disclosed by the invention has the advantages of simplicity in operation, strictness, practicability, low cost of expansion, accuracy in measurement and large obtained information contents.

The invention discloses a destructive testing apparatus and method for simulating tunnel going through oblique displaced active fault. The apparatus is mainly configured in that: a lidless model testing sample box is composed of a movable left half box 100 and a fixed right half box 200; the movable left half box 100 is connected to the fixed right half box 200 through a front bilateral sliding pair 309 and a rear bilateral sliding pair 310; a left bottom plate 102 of the left half box hinges an upper end of a vertically loading apparatus 307, and a lower end of the vertically loading apparatus 307 is connected to a horizontal moving platform 308 which can move forward and backward to the left side of a pedestal 400; a left front plate 103 and right front plate of the left half box cling closely and respectively to a front horizontal loading apparatus 302 and a rear horizontal loading apparatus. The apparatus can implement a tunnel structure and spatial positions of multiple dip angles and multiple crossing angles among active faults, simulates stress states and destructive methods of the tunnel structure in a more accurate manner so as to provide more reliable testing data for the design and construction of going through fault tunnel structure.

The invention relates to a real-time testing system and a testing method for an inertial platform. The testing system comprises a real-time data collection module, a real-time communication module anda real-time testing system, wherein the real-time data collection module is used for collecting self-monitoring data, inertial measuring data, analog data and power source data of the inertial platform, and sending to the real-time testing system; the real-time testing system is used for receiving the self-monitoring data and the power source data of the inertial platform and diagnosing faults, receiving and displaying the inertial measuring data and receiving and storing the analog data of the inertial platform. The testing system has the advantages that the online programmable function of testing tasks is realized, an item interaction window is provided, the testing task progress can be programmed on line, the storage function of testing task process is provided, and the automatic testing of the inertial platform is realized; the parameter fault detection and fault treatment functions of the inertial platform are realized, the monitoring data of the inertial platform can be judged,and the effective response can be timely made.

The invention discloses radio frequency electromagnetic field radiation immunity experiment test device and test method for an electric energy meter. An electric energy meter inspecting device, a communication and display device, a signal generator, a power amplifier and an emitting antenna are connected in sequence, and a main controller is connected with the communication and display device. During test, the electric energy meter inspecting device provides a voltage and current signal needed during the working of a tested electric energy meter and obtains an electric energy meter error value; the signal generator generates a frequency signal required by the test standard; after being amplified by the power amplifier, the frequency signal is transmitted to the emitting antenna, and an uniform field required by the test standard is generated by the emitting antenna; and the communication and display device is respectively communicated with the electric energy meter inspecting device and the signal generator by steps and reads, records and displays frequency information in the signal generator and electric energy meter error value information in the corresponding electric energy meter inspecting device. The invention can automatically record the test frequency and the corresponding electric energy meter error value and can obtain more complete and accurate test data.

The present invention provides a general spacecraft ground test bed system. The system comprises a test bed structure; a test bed simulation device configured to realize the general simulation of electric interfaces, electrical property equivalence of a dynamo-electric device, onboard flight environment simulation and the electrical interface simulation of an external system; a preposition test device; and a general control device located at a testing hall. The test bed structure employs freely splitting and combining open-type framework rack, and the open-type framework rack employs a bearing rod, an installing plate and a bearing rod joint. The test bed simulation device comprises a 1553B bus simulator, a power supply and distribution simulator, an Ethernet communication simulator and a simulation service and controller. The general spacecraft ground test bed system is able to develop a system-grade test prior to the completion of single unit equipment so as to conveniently and effectively discover abnormal single units having dismounting problems and process the low hierarchy problem of the single unit and the subsystem, cover various normal and fault flight modes, and reduce manpower resource consumption.

The invention discloses a method and a device for measuring a breakthrough pressure of a porous medium material. The method comprises the following steps of: A, placing a saturated infiltration phase tested piece into a holder, and loading a confining stress to the tested piece; B, shutting off an upstream emptying valve, a downstream emptying valve and a backpressure emptying valve, and vacuumizing; C, when the device is in a stable vacuum state, making the device pass through an upstream non-infiltration phase injection system and a downstream infiltration phase injection system; and D, simultaneously performing test on the breakthrough pressure and the permeability coefficient. The holder is connected with a confining stress control valve through a pipeline; the upstream is connected with an upstream control valve and an upstream pressure meter through pipelines; the downstream is connected with a downstream control valve, a downstream pressure meter and a backpressure control valve respectively through pipelines; a communicating valve is connected with an upstream non-infiltration phase and a downstream infiltration phase respectively through pipelines; a data acquisition cardis connected with the upstream pressure meter through a data wire. The invention is easy in operation, stable in performance and reliable in measurement, and applicable to simultaneous, quick, efficient and precise measurement of the breakthrough pressure and the permeability coefficient of the porous medium material.

The invention discloses an adjustable electric support rod test rack system used for an automobile tailgate lifting system and a test method thereof. The system comprises three parts of a mechanical part, a control part and an electric measurement part. The mechanical part comprises a rack base, rack support structures, rack adjusting devices, tailgate limiting devices and a tailgate limiting hinge. The control part comprises a power supply and a controller. The electric measurement part comprises a force measurement module, a voltage and current measurement module, a Hall signal measurement module and an angular speed measurement module. The invention also discloses a test method for the tailgate lifting system of different automobiles through the system. According to the system, the tailgate of different structural sizes can be installed and tested, the opening and closing time of the tailgate can be controlled by controlling the movement speed of the support rod, and the kinematic and kinetic parameters related to the support rod in the opening and closing process of the tailgate can also be acquired so that the measurement accuracy is high and the test data are comprehensive.

The invention provides a sealing wear-ring dynamic / static state exciting force effect characteristic parameter testing device and method; the testing device comprises an experiment table body device, a wear-ring loading and measuring device, and a circulation pipeline system; the wear-ring loading and measuring device comprises a dynamic loading measuring device and a static state loading measuring device; the dynamic loading measuring device comprises an exciter assembly, a force transducer assembly and an exciter probe assembly connected in sequence, and an accelerometer assembly arranged on a wear-ring stator and a displacement sensor assembly arranged right opposite to a wear-ring rotor, wherein the exciter probe assembly makes contacts with the wear-ring stator; the static state loading measuring device comprises a loading connecting rod, a spring cover, a force transducer III, a pulley and a pneumatic loading device, wherein the loading connecting rod is connected with the wear-ring stator. The testing device and method can load dynamic / static exciting force for to-be-measured wear-ring sealing, thus making up parameters tested by the static loading measuring device, and providing more comprehensive test parameters.

The invention discloses a measuring method of a thermal shrinkage rate of a cigarette packaging film. The measuring method is characterized by comprising the steps that an image acquisition device acquires dimension parameters of the cigarette packaging film before and after certain temperature and time processing in a heating medium; images are preprocessed; boundaries of the cigarette packaging film before and after shrinkage are fitted out by image analysis software; dimension variations of the cigarette packaging film are measured by using image measuring software; and longitudinal, transverse and overall thermal shrinkage rates of the cigarette packaging film are obtained after computation. According to the measuring method, the images before and after the shrinkage of the cigarette packaging film can be extracted and subjected to necessary image preprocessing and image analysis, and the dimension parameters of the cigarette packaging film can be extracted, so that the thermal shrinkage rate of the cigarette packaging film can be accurately measured. According to the measuring method, an influence of manual measuring on a testing result in an existing method can be avoided and a personal error can be eliminated; and the measuring procedure is fully automatic, so that the measuring accuracy and the measuring precision can be improved.

The invention provides a method for testing automotive transmission system resistance distribution. In the testing method, multiple vehicle states are subjected to a single variable control test performed based on a rotary drum test stand, the automotive transmission system resistance is tested by adopting a single-point speed steady state testing method and a sliding testing method based on a rotary drum reverse-dragging method, the testing is performed in modes of a new vehicle, running-in mileage 300km, running-in mileage 1000km and running-in mileage 2000km respectively by considering the influence of different automotive running-in mileages to the transmission system performance, a cold state and a hot state are respectively tested according to the starting work condition and normal running work condition in the actual automotive running process, and finished automobile testing, brake-dismounted brake shoe testing, disconnected transmission shaft testing and testing of a driving gear with no main speed reducer are respectively performed by adopting a step-by-step dismounting method. The testing method is safe, controllable and high in repeatability, the influence of uncertain factors is small, and detected test data are accurate and comprehensive.

The invention discloses a multimedium permeability experimental device, which comprises a specimen tube, a gravel sample layer, a concrete sample layer with fractures, and a broken stone sample layer, wherein the gravel sample layer, the concrete sample layer and the broken stone sample layer are arranged in the specimen tube from top to bottom in sequence; the bottom of the broken stone sample layer is provided with a filter plate; a sand water containing plastic bucket is arranged below the filter plate; the top of the gravel sample layer is provided with a sealing element; the bottom, the middle part and the top of the gravel sample layer are respectively connected with a N0.1 piezometer tube, a No.2 piezometer tube and a No.3 piezometer tube; the other ends of the N0.1 piezometer tube, the No.2 piezometer tube and the No.3 piezometer tube are all clung and connected with coordinate paper; the top of the gravel sample layer is connected with a water tank through a conduit; a thin iron wire penetrates through the fracture area of the concreate sample layer with the fractures; the bottom end surface and the top end surface of the fracture area are provided with thin plastic skins; the top end of the thin iron wire is connected with the bottom end of the thin plastic skin to penetrate through the center of the filter plate to be twisted into one strand of iron wire.

The invention discloses a nano cutting depth high-speed single-point scratch test device and a test method thereof. The device comprises a workbench, an air flotation rotary table, a test piece fixture, a test piece, a Z-direction feeding device, a nano motion platform, a force sensor and a scratch tool, wherein a micro convex structure with controllable length and height is machined in the to-be-scratched position of the test piece. The scratch speed is increased from mu m / s to m / s, and the machining speed of abrasive particles in the ultra-precise grinding process is restored really. Scratch force signals under different nano cutting depth conditions are accurately collected under the high-speed scratch condition, and the scratch force-scratch depth correspondence is explicit. The micro convex structure is constructed on the surface of the test piece, the condition that very long scratches are left on the surface of the whole wafer by a diamond needle point is avoided, abundant test data are provided in shorter scratches, the content of effective information in the unit scratch length is greatly increased, following scratch analysis and feature identification of remaining scratches are facilitated, and the integrity of the scratch tool is guaranteed.

The invention discloses a high-altitude satellite power control device accelerated life test system and method. The system comprises a high-temperature test chamber, a power control device, a solar battery array simulator, a storage battery pack simulator, an electronic load and a test process control computer, wherein the high-temperature test chamber is used for providing high-temperature environment required by a test; the power control device is put in the high-temperature test chamber, and is used for adjusting input current of the solar batter array simulator according to power requirement of the electronic load, and managing the charging / discharging of the storage battery pack simulator; the solar battery array simulator is used for simulating input power of a solar battery array ina light period; the storage battery pack simulator is used for realizing charging and discharging functions of a storage battery pack in an earth shadow period; and the electronic load is used for simulating on-satellite electricity loads. The method comprises the following steps of: 1) establishing an acceleration model; 2) carrying out electric performance test before acceleration; 3) carryingout a high-temperature life test; 4) carrying out electric performance test after the acceleration; and 5) analyzing the test result.

The invention provides a method and a device for detecting the network service quality of an IDC machine room. The method comprises the following steps: selecting the IDC machine room in a normal running state in a network; carrying out network service quality tests on the selected IDC machine room and obtaining corresponding test data, wherein the network service quality tests comprise a PING test and a network service running state test; analyzing the test data of the network service quality tests and obtaining the analysis results of the network service quality of the IDC machine room. Through the adoption of the method and the device, the accuracy of the analysis results of the network service quality of the IDC machine room can be improved.

The invention, which belongs to the technical field of the wind tunnel testing, relates to a force measurement device of a stable parachute of a hose pipe of a pod of an oiling machine. On the basis of the existing rod type scale technology and bent blade type tail boom device technology, a stable parachute joint, a bent blade type support bar, and a rod type balance transfer bolt are designed andare used for forming a force measurement device based on an aerodynamic environment in a real flight state of an oiling pod hose pipe connector stable parachute. The force measurement device has thefollowing advantages: the automation degree and the control precision are high; the technical staff is able to carry out remote control precisely and conveniently; and the test efficiency and safety are improved. With the good support mode, the data deviation caused by the dead load influence of the stable parachute is eliminated effectively; the support interference is reduced; the aerodynamic data of the stable parachute are tested precisely; and the practicability is high. The force measurement device is easy to promote and apply in tunnel testing and has the great practical value.

The invention belongs to the field of correlation techniques of flexible electronics and discloses an anti-tensile and anti-flexing performance test system for flexible electronics. The system comprises a control module, a data acquisition module and a testing module, wherein the testing module comprises two fixed mandrel units and two bent mandrel units in a sealing manner, and each fixed mandrel unit has fixing and stretching functions on the flexible electronics, has the freedom degree in the X direction and can be provided with a tension sensor; each bent mandrel unit can realize radius bending of a given mandrel, has freedom degrees in X and Y directions and can be provided with a pressure sensor and a CCD camera. Through combination of the four mandrel units, tests of constant tension, bending pressure, testing temperatures as well as flexing resistance of complicated curved surfaces such as C type, S type, G type and the like with adjustable bending radii, bending speeds and bending angles can be realized, anti-tensile performance test can be realized, and the defects that an existing device can only perform simple C type test and test data are not accurate due to non-quantitative test conditions are effectively overcome.

The invention discloses a device for studying the shock initiation performance of an explosive and an experiment method of the device. The device and the experiment method aim at solving the problems that in an explosive shock initiation experiment, both the thickness and the installation gap of a manganin gauge and an electromagnetic particle velocity gauge affect test precision, the test precision of the manganin gauge is seriously affected by the environment temperature, the application cost of the electromagnetic particle velocity gauge is high, and a small amount of data information is obtained by a high-speed scanning camera and can not reflect the state of a post-wave flow field. The device comprises a supporting frame, a transparent measurement window, an optical fiber probe frame and optical fiber probes. The supporting frame comprises a wedge-shaped explosive fixing frame and a fixing device. The wedge-shaped explosive fixing frame comprises a vertical connecting plate and an inclined connecting plate, the included angle between the inclined connecting plate and the horizontal plane is 15-30 degrees, and the inclined connecting plate is provided with a first window. According to the device and the experiment method, high-density and multi-point post-wave particle velocity profiles can be obtained in one experiment, and thus data support is provided for studying the shock initiation performance and detonation performance of the explosive.

The invention discloses a tunnel boring machine two-dimensional loading analog test device. A spherical pad used by the device is connected with a common cross beam of a pressure machine through bolts, two ends of the vertical loading tension transfer column of an installment axis type loading sensor are separately provided with the spherical pad and a cutter holder, cutters are fixed on the cutter holder though bolts, two left and right ends of a loading holder are separately provided with displacement sensors, the displacement sensors and axis type loading sensor are connected with a computer through a data sampling apparatus; a horizontal lifting jack is fixed with a left lateral plate through bolts, a horizontal loading tension transfer column is fixed on the left side of a right lateral plate, four draw bars are used to connect the right lateral plate and the left lateral plate, the piston ends of the horizontal loading tension transfer column and the horizontal lifting jack are separately provided with a test piece right bearing plate and a test piece left bearing plate; and a high speed CCD camera is mounted at the front of a test piece and is connected with a computer through a data line. The device has simple structure, convenient operation, low cost, rich test data, complete test result and high reliability and is easy to process.

The invention discloses a discrete material reinforcement composite foundation model pile, a test device and a test method, and belongs to the technical field of discrete material composite foundation simulation and test. The technical problem to be solved is to provide the discrete material reinforcement composite foundation model pile, the test device capable of testing stress and deformation along pile body height of the model pile, and a test method for parameter acquisition. According to the technical scheme adopted by the invention, the structure of the discrete material reinforcement composite foundation model pile is as follows: a packaging coiled material is formed by coiling a stepped thin plate, and the packaging coiled material is filled with a filling material; the test device comprises the model pile, a loading device, a leveling device, a force test device and a deformation test device; and the test method comprises the following steps: manufacturing the stepped thin plate into a cylindrical shape, filling a hollow part with the filling material to form the model pile; mounting a soil pressure box and a perimeter deformation measuring scale inside and outside the model pile; mounting a pressure sensor and a settlement surveying dial gauge on the top of the model pile; and carrying out vertical step loading.

The invention discloses a testing device for a lubricating system of a speed reducer. The device comprises a secondary oil tank which is connected to a tilting rotating platform that can perform tilting rotating from 0 to 90 degrees, wherein a spraying port and an oil returning port are formed in the secondary oil tank; a main oil tank is connected to the outer sidewall of the secondary oil tank; a lubricating oil pump is arranged in the main oil tank and can drive lubricating oil in the secondary oil tank and the man oil tank to circularly flow in two tank bodies all the time during the tilting rotating process; an oil-supplying-stage oil outlet of the lubricating oil pump communicates with the spraying port through an oil conveying pipe, and an oil-supplying-stage oil absorbing port of the lubricating oil pump communicates with the main oil tank; an oil-returning-stage oil absorbing port of the lubricating oil pump communicates with the oil returning port through an oil returning pipe, and an oil-returning-stage oil outlet of the lubricating oil pump communicates with the main oil tank. The testing device can perform tilting and rotating from 0 to 90 degrees under the effect of the tilting rotating platform; meanwhile, the lubricating oil pump is arranged in the main oil tank, so that the lubricating system in the testing device can work normally while the testing system performs tilting and rotating.

The invention discloses an internal water pressure loading device for a water tunnel structure model test. The internal water pressure loading device comprises two parts, namely a rubber airbag pressurization device and an air supply and pressure maintaining device, wherein the structure of the rubber airbag pressurization device is as follows: a circular cylindrical airbag is formed by a rubber wall on the outer side, a stainless steel on the outer side, and stainless steel flange rings at the upper and lower ends in a sealed manner; air transmission holes are formed in the stainless steel flange rings; the air supply and pressure maintaining device has the structure that: a CO2 source, a three-position rotary valve, a gas-pressure meter and the air transmission holes are sequentially connected with one another. According to the device disclosed by the invention, the tunnel model can be subjected to internal water pressure loading, and the effect and influence of the internal water pressure on the tunnel structure are simulated. When matched with the existing tunnel external water and soil pressure loading device, the device can simulate the mechanical properties and failure modes of a water tunnel in a tunnel lining under the actions of different internal water pressures and external water and soil pressure loads, so that a scientific and reliable test basis can be provided for structural design and construction of the water tunnel. Therefore, the construction and operation safety of the tunnel can be guaranteed.

The invention discloses a hardware-in-the-loop simulation test bench for an automobile AFS. The hardware-in-the-loop simulation test bench comprises a host computer system with a built-in vehicle dynamics simulation subsystem and a built-in communication and sensor signal reproduction collection subsystem. The vehicle dynamics simulation subsystem is used for calculating vehicle travelling state data under all kinds of road conditions, and the communication and sensor signal reproduction collection subsystem is used for receiving the calculated data of the vehicle dynamics simulation subsystem, converting the data to a sensor signal, sending the sensor signal to the AFS, simultaneously collecting the feedback signal from the AFS and displaying and storing the data. The hardware-in-the-loop simulation test bench of the invention can be used in all kinds of tests for an automobile AFS, solves the problems of high danger coefficient, high cost, long period and poor repeatability in automobile installation and tests in the later stage of the development of an automobile AFS so that the hardware-in-the-loop simulation test bench lays an necessary basis for control strategy research and algorithm design verification of an AFS.