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50 results about "Wear simulation" patented technology
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Frictional wear simulation test bench of wobble friction pair
InactiveCN102175544AAdjustable speedAdjustable loading frequencyEngine testingInvestigating abrasion/wear resistanceData acquisitionEngineering
The present invention relates to a frictional wear simulation test bench of a wobble friction pair, which is mainly composed of the following components: a frame workbench, a main shaft drive unit, a friction pair simulation swing mechanism, a hydraulic loading device, a hydraulic control system and a PC control system. The PC control system of the simulation test bench collects the signals of a torque sensor, a pressure sensor and a rotating speed sensor; and can realize the following functions: controlling an amplitude and a frequency of a loading force; operating and controlling a test program; collecting, processing and storing data; displaying and printing test data and a test curve. The frictional wear test follows a system correlation principle, a principle that the temperature fields are similar, a limit principle, a principle that the wear mechanisms are same, and a wear test simulation determination standard. A practical wobble friction pair is used as a test object. The frictional wear simulation test bench of the wobble friction pair has the following characteristics: compact structure, adjustable load amplitude, adjustable rotating speed, adjustable loading frequency, capability of simulating different working conditions of an engine, and capability for measuring the frictional wear characteristics of different types of wobble friction pairs.
Owner:ZHONGBEI UNIV +1
Shield machine cutter wear simulation testing device and method for upper-soft lower-hard stratum
InactiveCN106441751AImprove construction progressImprove construction efficiencyElasticity measurementEngineeringModel test
The invention provides a shield machine cutter wear simulation testing device and a shield machine cutting tool wear simulation testing method for an upper-soft lower-hard stratum. The shield machine cutter wear simulation testing device for the upper-soft lower-hard stratum comprises a simulate soil body used for simulating a site survey soil state of the upper-soft lower-hard stratum and a shield cutter head simulation device used for simulating rotation and tunneling of a cutter portion of a shield machine, wherein the simulate soil body is filled in a model test box, a simulate cutter head and a simulate cutter, obtained by simulating a real cutter head and a real cutter according to a scaled down rule, are arranged at an output end of the shield cutter head simulation device, and the simulate cutter head and the simulate cutter are stretched into the model test box, and laid towards the direction of the simulate soil body. By filling two types of soil bodies different in intensity in the test box according to work conditions in actual tunneling on site, the upper-soft lower-hard stratum is really simulated, and therefore effective test data is collected in aspects of thrust force, rotation speed, torque, tunneling length, cutter wear degrees and the like, and data support is provided to cutter improvement in actual construction.
Owner:CENT SOUTH UNIV +3
Real-time detection method for wear condition of cross section disc hob of hard rock driving machine
ActiveCN109307493AHighlight substantiveHighlight substantive featuresMeasurement devicesEngineeringTunnel boring machine
The invention relates to a real-time detection method for the wear condition of a cross section disc hob of a hard rock driving machine, and relates to a tunnel driving equipment construction technology. Through mechanical analysis of the contact action of a hob and hard rocks, by using a finite element simulation method, with the help of a friction and wear simulation test and a hob-hard rock linear cutting experiment, and the relationship between hard rock tunnel construction parameters, rock mass joint characteristic parameters, driving parameters, cutter tool arrangement structural parameters and rock mass mechanics and material parameters are established; and the hard rock driving machine detects the wear state of the single blade cross section disc hob on arbitrary front face of a cutter in real time in the driving process of geologies with different rock mass and rock characteristics, and the defects that an effective technological means of real-time detection of the cross section disc hob lacks in the prior art according to different rock mass joint structures, different cutter arrangement characteristics and the tool configuration characteristics are overcome.
Owner:TIANJIN UNIV +1
High-cold wind-sand environment wheel rail abrasion simulation experimental device
ActiveCN104634685AFacilitate conductionReduce the temperatureInvestigating abrasion/wear resistanceFriction torqueEngineering
The invention discloses a high cold wind sand environment wheel rail abrasion simulation experimental device. The high cold wind sand environment wheel rail abrasion simulation experimental device consists of a wheel rail rolling abrasion test rack and a wheel rail rolling abrasion simulation auxiliary system. A low-temperature cavity wind-sand environmental cavity (4) is communicated with a wind-sand simulation control unit by virtue of a sand conveying pipe (16); the low-temperature cavity wind-sand environmental cavity (4) is a double-layer cavity which is made of a copper alloy and is provided with an upper part and a lower part, namely an upper cavity (401) and a lower cavity (402); a refrigerant connecting pipe (501) is connected to the upper cavity (401) and the lower cavity (402); an upper refrigerant pipe (5) is used for inputting refrigerant prepared by a low-temperature cavity unit into the upper cavity (401), and a lower refrigerant pipe (6) is used for conveying the refrigerant of the lower cavity (402) back to the low-temperature cavity unit. By adopting the high-cold wind-sand environment wheel rail abrasion simulation experimental device, a high-cold wind-sand environment can be simulated, the interactive relationship of factors such as temperature, wind-sand conditions, applied load, rotation speed of a test piece, slide difference, an impact angle, friction torque, experiment time, post experiment forms and the like can be accurately and reliably analyzed, and reliable experimental data can be provided for researching a wheel rail abrasion mechanism and building a measure for alleviating the abrasion.
Owner:SOUTHWEST JIAOTONG UNIV
Testing method and apparatus of corrosive wear resistance of dissimilar metal friction matching pair
InactiveCN106940277AEvaluation of corrosion and wear resistanceConvenient and accurate researchWeather/light/corrosion resistanceInvestigating abrasion/wear resistanceWear resistanceMaterials science
The invention relates to the technical field of corrosive wear simulation experiment tests, in particular to a testing method and apparatus of corrosive wear resistance of a dissimilar metal friction matching pair. First and second to-be-tested metal samples are assembled in a friction pair manner, two working electrode interfaces of a ZRA galvanic corrosion gauge are connected to the first and second metal samples, respectively, and a reference electrode interface is connected to a reference electrode disposed in a corrosive solution. During the test, the first and second metal samples perform relative movement in the corrosive solution, and the ZRA galvanic corrosion gauge records the variation of an electrochemical parameter and the mass loss of the first and second metal samples to test the corrosive wear resistance of the dissimilar metal friction matching pair. Compared with an apparatus and method in the prior art, the apparatus and method can test galvanic corrosion between a dissimilar metal friction matching pair, is convenient for accurate research to galvanic corrosion performance of the dissimilar metal friction matching pair, and can evaluate the corrosive wear resistance of the dissimilar metal friction matching pair.
Owner:HENAN UNIV OF SCI & TECH
Structure surface wear simulation method based on discrete element method
The invention provides a structure surface wear simulation method based on a discrete element method. The structure surface wear simulation method includes the following steps that S1, the structure surface shape is obtained, and a target surface is divided into a triangular mesh composed of a plurality of triangular units; S2, discrete element simulation is conducted on the triangular units, the scattered particle collision processes of the triangular units are simulated, and thus the collision energy data of all the triangular units are computed and recorded; S3, the sizes of the materials stripped out of the surfaces of all the triangular units are computed according to the collision energy data obtained in S2, and thus the height variable quantity of the centers of mass of all the triangular units is obtained according to the material sizes; S4, the target surface is fitted again according to the height variable quantity of the centers of mass of all the triangular units obtained in S3. The structure surface wear simulation method based on the discrete element method provides reference for structural design, functional design, service life design and the like of scattered material processing equipment.
Owner:SHANGHAI AEROSPACE SYST ENG INST
Acceleration wear simulation testing device for fastening bolt of suspension rod of ceiling fan
InactiveCN103411844AIncrease speedIncrease wear rateInvestigating abrasion/wear resistanceCeiling fanWear law
The invention discloses an acceleration wear simulation testing device for a fastening bolt of a suspension rod of a ceiling fan. By utilizing the testing device, a wear law of a bolt of the suspension rod can be quickly obtained, and a testing period is shortened. The testing device is characterized in that a motor is mounted on a testing rack; a sliding seat assembly is fixed on a pedestal of the testing rack, a testing ceiling fan is connected with a motor shaft through a universal joint, a fastening bolt is mounted in a mounting hole in the lower end of the suspension rod, and a belt is sleeved on a shell of a rotor of a testing ceiling fan to limit the rotation of the rotor; a pulley is connected to a sliding seat through double lug plates, a steel wire rope is connected with the belt, and the other end of the steel wire rope bypasses the pulley and is connected with a weight. According to the testing device, a wear acceleration test of the fastening bolt under normal use conditions can be simulated by controlling the rotation speed of the ceiling fan by utilizing a driver; the wear acceleration test of the fastening bolt under serious working conditions can be simulated by adding the weight. During the testing process, the implementation of the wear acceleration test under the serious working conditions generated by the eccentric weight can be simulated by deflecting a machine head of the ceiling fan; a double-acceleration wear test can be realized by simultaneously accelerating the rotation and applying the serious working conditions.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Comprehensive eyeglass dispensing assistance system
InactiveUS20130147725A1Improve performanceSaving much eyeglassMedical simulationInput/output for user-computer interactionElectricityAnimation
A comprehensive eyeglass dispensing assistance system includes an input device, a data storage device and a display device respectively electrically coupled to a processor, which receives an inputted instruction signal from the input device to fetch corresponding eyeglass dispensing desktop data and eyeglass wearing simulation animation data from the data storage devices for display on a menu directory zone and a condition indicator zone on the screen of the display device so that the consumers can understand and judge the symptoms and reasons of their vision acuity and the type or kind of corrective eyeglasses to be selected, facilitating optometric procedure explanation and performance.
Owner:SUNWARD TECH +1
Mechanism kinematic pair wear simulation method based on mesh deformation technology
The invention relates to a mechanism kinematic pair wear simulation method based on the mesh deformation technology. The method includes the following steps that a mechanism kinematic pair model is created, a contact region of the mechanism kinematic pair model is judged to be recorded as a target region, mesh generation is conducted on the target region, and the serial number and initial coordinate of a grid node are output; a massless small ball model is created at the grid node, the small ball model takes the place of the target region to make contact with the mechanism kinematic pair model, dynamical simulation is conducted, and the interaction force and relative sliding velocity between the small ball model and the mechanism kinematic pair model are obtained; according to the Achard wear calculation formula, the wearing depth at the grid node is calculated; according to the wearing depth, a new coordinate of the grid node is calculated. By a mesh generation means, the target region is discrete, the quantitative relationship among contact pressure, the kinematic pair inter-element relative sliding velocity and a wear extent is built, and by visually presenting the post-wear characteristics of the target region, a reference is provided for structure design.
Owner:NANJING YUEBOO POWER SYST CO LTD
Vacuum high-temperature high-speed friction-wear testing device
InactiveCN103808578ASafe recyclingIncrease motivationInvestigating abrasion/wear resistanceData acquisitionEngineering
The invention relates to a friction-wear testing device, and particularly relates to a vacuum high-temperature high-speed friction-wear testing device. The vacuum high-temperature high-speed friction-wear testing device is provided with a hydraulic power system, a bullet, a propelling system, a sensor system, a friction pair loading system, a data acquisition system and a support frame, as well as a vacuum heating system and a sample recycling system, wherein the sample recycling system is a blind pipe with one sealed end; the open end of the blind pipe is butted with a force applying ring of the friction pair loading system; the vacuum heating system is a tubular vacuum box which wraps a section from a transmission pipe to the sample recycling system, and vacuum atmosphere and a resistance wire are arranged inside the vacuum box. The data acquisition system comprises strain gauges, a computer and a transmission circuit which is used for transmitting the data in the strain gauges to the computer; the strain gauges are adhered to both the force applying ring and an annular force meter. The device disclosed by the invention can be used for simulating a friction test in the vacuum atmosphere at different temperatures, satisfies friction-wear simulation under complex working conditions such as vacuum, high temperature, high speed and the like, and can provide effective data support for a research on friction wear under complex conditions.
Owner:HENAN UNIV OF SCI & TECH
Engine valve-guide pipe strengthening abrasion simulation experiment machine
ActiveCN105651634AEnables simulation of enhanced wear testsEasy to control temperatureInvestigating abrasion/wear resistanceEngine valveMotion Mode
The invention discloses an engine valve-guide pipe strengthening abrasion simulation experiment machine. The engine valve-guide pipe strengthening abrasion simulation experiment machine comprises a first driving mechanism, a second driving mechanism, a valve, a guide pipe, a guide pipe clamp base, a heating device, a friction resistance measuring device and a load loading device. A clamping head is fixedly arranged on an output shaft of the first driving mechanism so as to drive the valve to rotate. One end of the valve is installed on the clamping head. The other end of the valve is connected with the friction resistance measuring device. The valve is sleeved with the guide pipe, and the guide pipe is fixedly connected with the guide pipe clamp base. The second driving mechanism is fixedly connected with the guide pipe clamp base. The load loading device is connected with the guide pipe clamp base. The heating device covers the guide pipe clamp base so as to heat the valve and the guide pipe. According to the engine valve-guide pipe strengthening abrasion simulation experiment machine, the engine valve-guide pipe friction pair motion mode is simulated, the strengthening abrasion experiment is achieved, the experiment period is shortened, and experiment equipment is provided for evaluating the service life of a friction pair.
Owner:εδ½ζ° +1
Wind excitation vibration wear simulation test device for composite insulated cross arm
PendingCN113125288AAdaptableSimple structureVibration testingInvestigating abrasion/wear resistanceStructural engineeringTest platform
The invention discloses a wind excitation vibration wear simulation test device for a composite insulated cross arm, which comprises a swing end driving mechanism, a sliding connecting rod and a composite insulated cross arm simulation assembly which are arranged on a combined rack according to a design position. The swing end driving mechanism is connected with the sliding connecting rod through a centering slider-crank mechanism; the sliding connecting rod is connected to the bottom of the composite insulated cross arm simulation assembly, the swing end driving mechanism drives the sliding connecting rod to move horizontally through the centering type crank sliding block mechanism, and the sliding connecting rod drives the composite insulated cross arm simulation assembly to swing back and forth. In the swinging process, a measuring device on the composite insulated cross arm simulation assembly monitors in real time and transmits data to a computer, and corresponding monitoring data are obtained. A test platform provided by the invention is simple in structure and convenient to use, and can simulate low-frequency large-amplitude swing and high-frequency low-amplitude aeolian vibration of a lead in a distribution line, thereby providing convenience for research on wind-excited vibration wear characteristics of suspension string fittings.
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +1
Wearing simulation device, wearing simulation method and wearing simulation pogram
ActiveCN101796547AEasy to find using empirical rulesSimple collision determinationTexturing/coloringDesign optimisation/simulation3 d simulationEngineering
A 3-D simulation of a garment shape made of non-sewn knitting is carried out on a flat plane. The garment is divided into a plurality of parts and the parts are further divided by meshes to generate polygons. Each part is arranged around a manikin and the parts are joined to each other, so that a wearing state is simulated at a polygon level. Next, stitches are arranged for the polygons, the arrangement of the stitches is rectified, a 3-D shape of the stitch is set, and rendering is carried out by a thread image. This makes the simulation speed higher.
Owner:SHIMA SEIKI MFG LTD
Marine engine connection rod bush wear simulation test device and test method
PendingCN110207988AThe test result is accurateIncrease speedMachine part testingEngine testingHydraulic cylinderPiston
Owner:WUHAN UNIV OF TECH
Piston pin, bushing test piece structure and engine swing wear simulation test tool
PendingCN111912729ASolve the cumbersome technical problems in the disassembly processReduce the difficulty of changing clothesInvestigating abrasion/wear resistanceHydraulic cylinderControl engineering
The invention provides a piston pin, a bushing test piece structure and an engine swing abrasion simulation test tool. The engine swing abrasion simulation test tool comprise a first bearing seat, a second bearing seat, a driving motor, a swing type transmission mechanism, a hydraulic cylinder, a driving tip cone shaft, a follow-up tip cone shaft, an adjusting screw and a bushing test piece structure. A bearing of the first bearing pedestal, a bearing of the second bearing pedestal and a circular hole in the bushing test piece structure are coaxially arranged, the bushing test piece structureis arranged between the first bearing pedestal and the second bearing pedestal, the driving motor is connected with the driving tip cone shaft through the swing type transmission mechanism, and the driving tip cone shaft penetrates through the bearing of the second bearing pedestal. According to the piston pin, the bushing test piece structure and the engine swing abrasion simulation test tool, the technical problem that an existing test tool is complex in disassembly and assembly process is solved.
Owner:CHINA NORTH ENGINE INST TIANJIN
Multifunctional pin disc type abrasion simulation experiment device
PendingCN111855468AImprove reliabilityImprove experimental efficiencyInvestigating abrasion/wear resistanceWear testingMutual influence
The invention belongs to the technical field of friction and wear testing, and discloses a multifunctional pin disc type abrasion simulation experiment device. The device can be used for carrying outmultiple groups of opposite grinding experiments without mutual influence, and can also be used for simultaneously carrying out multiple groups of opposite grinding experiments without mutual influence under the conditions of different rotating speeds, different contact pressures and the same temperature, so that the reliability of experimental data and the experimental efficiency are improved, and the experimental time is shortened. A user can change the temperature in a heat preservation box cavity by virtue of the heat preservation box cavity; a lead screw sliding block lifting loading system can independently start different opposite grinding assemblies and can apply vertical loads to different multi-grinding assemblies; and a main shaft rotating system can drive a friction disc to rotate and provide corresponding torque.
Owner:XIHUA UNIV
Tire wear simulation test robot
A robot for simulating tire wear experiments is provided, comprising a steering simulation mechanism, a rotation speed simulation mechanism, an inclination simulation mechanism and a vibration simulation mechanism, the steering simulation mechanism includes a steering deceleration motor, and the rotation speed simulation mechanism includes a tire suspension, a rotating motor and a tire fixed shaft , the tilt simulation mechanism includes a tilt reduction motor, the vibration simulation mechanism includes a guide column, a spring mounting plate and a high elastic spring, the output shaft of the steering reduction motor is connected to the tire suspension, the tire suspension is installed with a tire fixed shaft, one end of the tire fixed shaft is Rotating the output shaft of the electric motor; the invention simulates real tire wear at different speeds, turns, tilts and vibrations.
Owner:SHAANXI LAIFU TECH DEV CO LTD
High-temperature environment high-speed train wheel axle wearing simulation box
InactiveCN108535016ASimple structureImprove operational efficiencyMachine bearings testingRailway vehicle testingEngineeringHot Temperature
The present invention discloses a high-temperature environment high-speed train wheel axle wearing simulation box. Fans, a pressure shaft, a pressure plate and a gear box are located at the internal portion of the box body; the fans are located at two sides of the box body and configured to perform heating of the internal portion of the box body, a fan heating mode can ensure the uniform temperature in the box body and can have a drying effect; the pressure plate is connected with the pressure shaft and is located above the gear box; the pressure shaft is connected with an external force applying device and configured to apply pressure to the wheel axle to be measured, and the external force applying device is connected with the pressure shaft, the pressure shaft and the pressure plate areemployed to apply pressure to the wheel axle to be measured to simulate the load of the wheel axle in the actual operation process; and the gear box drives the wheel axle to be measured to rotate soas to simulate the operation of the wheel axle. The simulation box provided by the embodiment of the invention is simple in structure, can simulate the extreme high-temperature weather and the actualcondition that the parts of the wheel axle are worn and can determine the optimal selection materials of the parts so as to improve the operation efficiency of the high-speed train and reduce the maintenance cost.
Owner:SOUTHWEST JIAOTONG UNIV +1
Test method and test system for determining active remanufacturing time of roller
PendingCN111797534AImprove accuracySolve technical problems of coupled damage evolution processDesign optimisation/simulationSpecial data processing applicationsThermal fatigueComputational simulation
The invention discloses a test method and a test system for determining active remanufacturing time of a roller. The test method comprises the following steps of: calculating an equivalent pressure load and an equivalent slip ratio required to be applied for simulating real abrasion and contact fatigue damage, and inputting parameters of the equivalent pressure load and the equivalent slip ratio to carry out a contact fatigue and abrasion simulation test so as to obtain a contact fatigue damage limit and a abrasion damage limit; constructing a heat transfer model of a rolling production process, determining equivalent input heat and cooling liquid injection flow according to a calculated value of the heat transfer model, and inputting values of the equivalent input heat and the cooling liquid injection flow to perform a thermal fatigue simulation test so as to obtain a thermal fatigue damage limit; performing a contact fatigue, abrasion and thermal fatigue coupling damage simulation test in combination with the parameters of the two tests to obtain a coupling damage limit; and determining the active remanufacturing time of the roller. The test method and the test system can realizecoupling evolution simulation of abrasion, contact fatigue, thermal fatigue and other damage, and determine the active remanufacturing time of the roller based on the simulation result.
Owner:HEFEI UNIV OF TECH
Wear simulation test bed for bottom pintle friction pair of miter gate
ActiveCN108279117ARestore exercise statusLoad size can be adjustedMachine part testingInvestigating abrasion/wear resistanceEngineeringElectrical and Electronics engineering
The invention relates to a wear simulation test bed for the bottom pintle friction pair of a miter gate. A vertical frame is installed on a base. A door frame is arranged on the side face of the vertical frame. The bottom end of the door frame is fixed on the base. A gate body is hinged to the vertical frame. The outer end face of the gate body is in contact fit with the door frame through a checkblock. One side of the gate body is provided with a gate hoist for opening and closing the miter gate. The other side of the gate body is provided with a damping device. The top of the gate body is provided with a suspension device which synchronously rotates with the gate body. The suspension device is arranged right above the gate body. A loading device is installed between the suspension device and the gate body. The top of the gate body is hinged to the rotating shaft. The top of the rotating shaft is in rotating fit with a top pintle installed on the gate body. The bottom of the gate body is supported on a bottom pintle through a bottom pintle support. By means of the test bed, the influences of different loads of the miter gate, different speeds of the miter gate, different lubricating modes of the miter gate and different materials of the bottom pintle friction pair on the frictional wear of the bottom pintle can be simulated.
Owner:CHINA THREE GORGES UNIV
Wheel-rail wear simulation experiment device in alpine wind and sand environment
ActiveCN104634685BRealize simulationSpeed adjustmentInvestigating abrasion/wear resistanceFriction torqueEngineering
Owner:SOUTHWEST JIAOTONG UNIV
Friction wear simulation experiment machine of continuous casting crystallizer
InactiveCN106918521ASimple structureEasy to operateInvestigating abrasion/wear resistanceTemperature controlReciprocating motion
The invention relates to a friction wear simulation experiment machine of a continuous casting crystallizer. According to the invention, a driving-disc (1) of the experiment machine is connected with a servo motor through a coupler, a position regulating block (2) on the driving disc (1) is hinged to a slide block (17) at one end of a connecting rod (3), the other end of the connecting rod (3) is connected with a continuous casting crystallizer sample (5) through a hinge, the continuous casting crystallizer sample (5) and a reciprocating slide block (4) are fixed through a pin and perform reciprocating motion along a guide rail (6), so that relative sliding of the continuous casting crystallizer sample (5) and billet is realized. The temperature of the billet is adjusted by a temperature-control system, the load is applied to the continuous casting crystallizer sample (5) by a hydraulic loading system (16), a vacuum system (12) provides vacuum environment for the experiment machine in the invention, and relative experiment is carried out under vacuum condition. The experiment machine can evaluate the friction wearing performance of the continuous casting crystallizer under practical condition, and the usage life is predicted. The experiment machine has the advantages of simple structure and convenient operation, and has high application value.
Owner:YANSHAN UNIV
Erosion corrosion interactive wear simulation test device
InactiveCN111678827AEasy to installReal-time monitoring of erosion rateWeather/light/corrosion resistanceInvestigating abrasion/wear resistanceRotational axisMaterial Erosion
The invention discloses an erosion corrosion interactive wear simulation test device. The device comprises a clamp unit, a fluid power unit, a working motor, a test barrel body, a thermometer, a bottom heating device and a rotating shaft. Eight bolt holes are formed in the outer surface of a clamp sealing connecting plate and used for being fixed to the test barrel body and achieving the sealing effect, and cuboid blocks are welded to the inner surface of the clamp sealing connecting plate and slotted. The clamp rotating shaft is installed in a through hole in the clamp sealing connecting plate, and the two ends of the clamp rotating shaft are each provided with an anti-skid micro groove with the length of 30 mm. Stirring blades are in a hinge shape, the bending angle is 25 degrees, and the stirring blades are fixed to blade fixing pieces through bolts. Compared with the prior art, the test device has the advantages that the test piece is in a fluid erosion corrosion environment all the time, the actual working condition of the inner wall of a pipeline is simulated to the maximum extent, the test piece is installed on the barrel wall more stably and reliably relative to rotation ofthe test piece, the fluid erosion speeds of different depths can be monitored in real time, multiple test pieces can be tested at different angles at the same time, and the efficiency is high.
Owner:SOUTHWEST PETROLEUM UNIV
Internal surface local hardening (alloying) eccentric wear prevention oil pipe
InactiveCN103670288AHigh hardness and wear resistanceDrilling rodsFurnace typesReciprocating motionEarth surface
When an oil pipe is in a working state, an oil sucker rod and a centering device of the oil sucker rod make reciprocating movement on the inner surface of the oil pipe. If the reciprocating movement happens to an inclined well and a horizontal well, the centering device of the oil sucker rod can form long-term friction on the inner surface of the oil pipe, the centering device of the oil sucker rod and the inner surface of the oil tube are in clearance fit within a certain tolerance range, negative pressure is formed inside the oil pipe through the reciprocating movement and a one-way sealing principle, and therefore crude oil is extracted to the earth surface from the underground of thousands of meters. In order to prevent or retard the eccentric wear phenomenon, the invention provides wear simulation equipment to test the anti-wear cycles under various conditions.
Owner:ιδΌη
Conveyor carrier roller friction wear test bench
PendingCN113390744AThe experimental data is close to the realImprove versatilityUsing mechanical meansInvestigating abrasion/wear resistanceElectric machineryStructural engineering
The invention provides a conveyor carrier roller friction wear simulation test device and method. The conveyor carrier roller friction wear simulation test device comprises a bracket part used for supporting and installing the whole device, a loading part used for loading, a cavity part used for bearing a carrier roller, an atomization part used for forming a humid environment and a driving part used for providing power, wherein the loading part for loading is fixed on the bracket system, a stepping motor for controlling loading is arranged at the bottom of the loading lead screw of the loading part, the middle part of the loading lead screw of the loading part is provided with a loading nut and a bearing seat base which are used for controlling a test carrier roller to move, annular pressure sensors are arranged in the loading nut and the bearing seat base of the loading part and are used for measuring a positive pressure numerical value after loading, the cavity part is used for forming a closed environment cavity to close the test carrier roller and a rubber-coated roller so as to prevent dust from overflowing, and the cavity part further comprises a torque sensor for measuring real-time torque.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Hydro-generator carbon brush and collecting ring current-carrying frictional wear simulation test device and method
PendingCN111289430AThe experimental data is close to the realReduce mechanical vibrationUsing mechanical meansMaterial analysisWear testingProcess engineering
The invention provides a hydro-generator carbon brush and collecting ring current-carrying frictional wear simulation test device and a hydro-generator carbon brush and collecting ring current-carrying frictional wear simulation test method. The hydro-generator carbon brush and collecting ring current-carrying frictional wear simulation test device comprises a bracket system and a test system, wherein the bracket system is used for supporting and installing the whole device, a driving system used for providing power is fixedly installed on the bracket system, and a collecting ring is installedat an output end of a main shaft of the driving system; three carbon brushes of the same model are arranged at the lower end of the collecting ring, and include an anode carbon brush, a cathode carbon brush and an auxiliary carbon brush; the plurality of carbon brushes are respectively in contact fit with brush holders arranged on a plurality of corresponding levers, and the plurality of levers are respectively supported on a vertical bracket of the bracket system; the collecting ring and the plurality of carbon brushes are connected with a loading system; an adjusting system is mounted on the loading system and the levers; and the test system is used for collecting experimental data. Therefore, the current-carrying frictional wear testing machine can measure the friction coefficient between the carbon brushes and the collecting ring in real time.
Owner:CHINA THREE GORGES UNIV
Multi-position wear simulation test device for wear-resistant valve
PendingCN114838931AAchieve recyclingImprove completenessMachine valve testingEngineeringStructural engineering
According to the technical scheme, the multi-position abrasion simulation test device for the abrasion-resistant valve is characterized in that the multi-position abrasion simulation test device comprises a plurality of test pipelines and an opening and closing device, the test pipelines are provided with disassembly and assembly parts, the head ends and the tail ends of the test pipelines are communicated with a material discharging hopper and a material receiving hopper respectively, and the number of the test pipelines is multiple. The material discharging hopper and the material receiving hopper are communicated with all the test pipelines to form a parallel structure, and control valves capable of opening and closing the conveying channels are arranged on all the test pipelines; the material discharging hopper is externally connected with a high-pressure feeding mechanism capable of feeding solid material media in the material discharging hopper into the material receiving hopper through the test pipeline, and the material receiving hopper is externally connected with a high-pressure material receiving mechanism capable of feeding the solid material media in the material receiving hopper into the material discharging hopper through the test pipeline. The test pipelines are externally connected with high-pressure heat supply mechanisms capable of supplying heat to the conveying channels, and the material discharging hopper and the material receiving hopper are communicated with pressure release valves used for maintaining the pressure in the cavities. And the test device can simulate actual use conditions.
Owner:QUALITY INSPECTING CENT OF PUMP & VALVE PROD OF ZHEJIANG PROVINCE
Single crystal copper two-body abrasive wear simulation method
PendingCN112966367AAnalyze and summarize the law of deformationAnalysis and Summary MechanismDesign optimisation/simulationComputational theoretical chemistryAnalogue computationEngineering
The invention discloses a single crystal copper two-body abrasive wear simulation method, and belongs to the field of analogue simulation calculation. The method comprises the following steps: (1) modeling single crystal copper two-body abrasive wear by adopting Lammpps software; (2) dividing the single crystal copper matrix model into a fixed layer, a constant temperature layer and a Newton layer according to different purposes; (3) establishing a space coordinate system, adopting a periodic boundary condition in a sliding direction, and adopting a fixed boundary condition in a Y direction; (4) setting a load and a speed, performing energy minimization on the single crystal copper two-body abrasive wear model by adopting a conjugate gradient method, performing relaxation by adopting an NVT ensemble until the substrate temperature is constant at a preset temperature, and performing dynamic simulation by adopting an NVE ensemble; and (5) adopting Ovito and Atomeye software for displaying the simulation process, and obtaining the surface appearance of the single crystal copper in the abrasion process. The method is beneficial to analyzing and summarizing rules and mechanisms of material deformation.
Owner:XI AN JIAOTONG UNIV
Device for simulating wearing of pleated product, simulation method, and simulation program
ActiveCN102334121ASimple configurationHigh precision simulationSpecial data processing applicationsImage generationEngineeringHuman-body model
The position and direction of a turnback are set for a part on the pattern data of a pleated product, the part is deformed based on the position and direction of a turnback, the deformed parts are arranged around the body of a model, and then the wearing state is simulated for the parts thus arranged at least based on the friction with the body and the gravity and elasticity acting on the parts. The parts of a pleated product can be positioned easily for a human body model, and wearing simulation can be carried out in a short time with high precision.
Owner:SHIMA SEIKI MFG LTD
Wearing simulation device and simulation method
InactiveCN101573055BSimple configurationDesign optimisation/simulationSpecial data processing applicationsEngineeringWear simulation
Owner:SHIMA SEIKI MFG LTD
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