34results about How to "Meet the test conditions" patented technology

The invention discloses a discrete element modeling method for a rock and earth mass triaxial test taking film effect. The method includes following steps: S1, modeling a sample preparing container; S2, modeling a rock-earth mass sample; S3, endowing the generated rock-earth mass sample with material attribute of given sample units, balancing stress among the sample units to complete making of the rock-earth mass sample; S4, building an elastic film, replacing a rigid barrel of a sample preparing container model with the elastic film, setting corresponding material attribute for the elastic film to complete building of a triaxial test discrete element model. Further, the invention further discloses a numerical simulation method based on the discrete element model. According to given pressurizing conditions, stress loading is adopted to axially pressurize the rock-earth mass sample, and lateral confining pressure is applied on the rock-earth mass sample through water pressure. A film unit is adopted to simulate a latex film in the triaxial test, and flexible boundary of the latex film better conforms to actual circumstance of indoor triaxial test numerical simulation.

Provided are a system and method for optically measuring the space detector take-off or landing process. The system comprises a calibration module, an imaging module and a data processing module. Theimaging module images the take-off or landing process of a space detector to be measured and transmits an imaging result to the data processing module. The calibration module calibrates elements of interior orientation and exterior orientation of the imaging module and transmits the elements of interior orientation and exterior orientation to the data processing module. The data processing modulereceives the imaging result transmitted by the imaging module and receives the elements of interior orientation and exterior orientation. According to the imaging result and the elements of interior orientation and exterior orientation, motion parameters of the space detector to be measured in the take-off or landing process are calculated. By adopting a binocular pose measuring algorithm based oncontrol points, the physical quantities such as space position and poses in the take-off process of the space detector on the surface of an extraterrestrial celestial body are accurately measured, and motion parameters such as the speed, accelerated speed and angular spin rate of the space detector are obtained.

The invention relates to the technical field of photovoltaic new energy, in particular to a direct current power source device for a photovoltaic inverter. The direct current power source device for the photovoltaic inverter is characterized by comprising an input electric reactor, a soft start circuit and 12-pulse-wave rectifying circuit; the input electric reactor is arranged at the front end of the soft start circuit; the rear end of the soft start circuit is connected with the 12-pulse-wave rectifying circuit; the function of reducing the input current harmonic is achieved through the input electric reactor to enable the power grid voltage to satisfy a testing condition of the photovoltaic inverter. The direct current power source device for the photovoltaic inverter has the advantages of being simple in structure, reducing the current harmonic inputting into the direct current power source, reducing the power grid voltage distortion, being matched with the photovoltaic inverter in utilization after grid connection, reducing electricity, being energy saving and environmental friendly, enabling the power grid voltage to satisfy a photovoltaic inverter testing condition and the like.

The invention discloses an adjustable integral flat-plate quartz lamp heater structure which comprises a trolley, bearings, a flat-plate quartz lamp heating assembly, a rotatable frame and a handwheel brake disc locking device, wherein each bearing comprises a bearing pedestal and a bearing support connected with the bearing pedestal, the bearing supports are arranged on the trolley, the rotatable frame is connected to the bearing pedestals via a shaft, the flat-plate quartz lamp heating assembly is arranged in the rotatable frame, and the handwheel brake disc locking device is connected with the bearing pedestals. According to the invention, the flat-plate quartz lamp heating assembly can be switched between a vertical condition and a horizontal condition conveniently, and test conditions are met effectively.

The invention relates to a gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system. The gasoline engine low-pressure electromagnetic valve type fuel injector performance detecting system comprises an experimental liquid pressure stabilizing and holding device, an experimental liquid driving device, an experimental liquid temperature adjusting device, an experimental liquid supplying device, a fuel injector installing and experimental liquid collecting device and a control system, wherein the experimental liquid pressure stabilizing and holding device is a constant temperature and constant press tank body and provided with five ports, namely, a nitrogen pressure input port, an experimental liquid supplying port, an experimental liquid output port, a temperature controlling input port and a temperature controlling output port, a pressure sensor, a temperature sensor and a liquid level sensor are arranged in the tank body, the nitrogen pressure input port is connected with the experimental liquid driving device, the experimental liquid supplying port is connected with the experimental liquid supplying device, the experimental liquid output port is connected with the fuel injector installing and experimental liquid collecting device, and the temperature controlling input port and the temperature controlling output port are connected with the experimental liquid temperature adjusting device to form a loop.

The invention discloses a water-water / water-glycol type water source heat pump assembly performance testing device. The w water-water / water-glycol type water source heat pump assembly performance testing device is of a pipe water mixing / dividing wall heat exchanging structural design and comprises a cooling water system, a coolant water system, a pipe water mixing / dividing wall heat exchanging system, a heat dissipation system and a glycol solution storage system. According to the water-water / water-glycol type water source heat pump assembly performance testing device, test determination and calculation on main tests on the coolant water side is performed through liquid coolant; test determination and calculation on verification tests on the cooling water side is performed through an assembly heat balancing method, so that the performance parameters such as the refrigerating capacity, the refrigerating power consumption and the refrigerating energy efficiency ratio and the important technical parameters such as temperature and flow of the water-water / water-glycol type water source heat pump assembly can be measured accurately, and importable means can be provided for performance testing and development research of the water-water / water-glycol type water source heat pump assembly. The water-water / water-glycol type water source heat pump assembly performance testing device has the advantages of being energy-saving in operation, accurate in testing results and capable of achieving all-weather all-condition testing.

The invention relates to the technical field of testing of combustion performance of multi-hydrocarbon air-mixed gas, in particular to an air-mixed gas combustion performance testing system and a testmethod thereof. The test system comprises a mixed hydrocarbon loop, an air loop, a heat circulation loop and a test pipeline, wherein test units for realizing flow measurement, temperature measurement and pressure measurement are arranged on the mixed hydrocarbon loop, the air loop, the heat circulation loop and the test pipeline. The test system can provide a perfect hardware test platform for the influence of each influence factor on the combustion performance of the mixed gas under the single action or multiple actions in the air-mixed gas production process, and finally provides accuratedata support for the development of various hydrocarbon air-mixed gas devices; and another purpose of the invention is to provide a test method based on the air-mixed gas combustion performance test system so as to ensure the test efficiency.

The invention relates to a gasoline engine direct injection type fuel injector performance detecting system. The gasoline engine direct injection type fuel injector performance detecting system comprises an experimental liquid pressure stabilizing and holding device, an experimental liquid pressure adjusting and driving device, an experimental liquid temperature adjusting device, an experimental liquid supplying device, a fuel injector installing device, an experimental constant volume device and a control system, wherein the experimental liquid pressure stabilizing and holding device is a constant temperature and constant press tank body and provided with five ports, namely, a nitrogen pressure input port, an experimental liquid supplying port, an experimental liquid output port, a temperature controlling input port and a temperature controlling output port, a pressure sensor, a temperature sensor and a liquid level sensor are arranged in the tank body, the nitrogen pressure input port is connected with the experimental liquid driving device, the experimental liquid supplying port is connected with the experimental liquid supplying device, the experimental liquid output port is connected with the fuel injector installing device which is connected with the experimental constant volume device, the experimental liquid adjusting and driving device is connected with the experimental constant volume device, and the temperature controlling input port and the temperature controlling output port are connected with the experimental liquid temperature adjusting device to form a loop.

The invention discloses a turbine blade fault test system and an intelligent fault diagnosis method thereof. The test system comprises a gas supply system, a turbine main body system, a lubricating system and a measurement control system. When the turbine blade fault test system runs, the gas supply system provides a gas source for the turbine main body system, the lubricating system provides a lubricating working medium for the turbine main body system, and the measurement control system is used for controlling the running safety of the whole system and measuring required performance parameters. The turbine blade fault test system is established to achieve accurate measurement of pneumatic parameters and vibration parameters during turbine operation, a large amount of test data of fault blades are obtained, and a fault diagnosis model based on a convolutional neural network and deep transfer learning is established. Pneumatic signals and vibration signals of the fault blades are learned, trained and tested, and are migrated and applied to a real turbine unit, so that a foundation is laid for online fault diagnosis of the turbine blades of a large-scale generator set.

The invention discloses a simulation-based horizontal shock response spectrum table and a design method thereof. The horizontal shock response spectrum table comprises a substrate; multiple bearing fixing devices arranged on the substrate; two parallel bearings arranged on the bearing fixing devices and capable of moving along transverse direction vertical to an axial direction of the bearings onthe bearing fixing devices, thereby adjusting the transverse distance between two bearings; multiple support parts arranged on the bearings and capable of axially sliding along the bearings; at leastone table part arranged on the support parts, and a plate part arranged on the table part.

The invention discloses a safe mobile PCR laboratory system for epidemic prevention. The system comprises a movable compartment arranged on a vehicle chassis, the compartment comprises an amplification area, an isolation area and a preparation area, an isolation door is arranged between the amplification area and the isolation area, a second isolation door is arranged between the isolation area and the preparation area, ventilation systems are arranged on the amplification area, the isolation area and the preparation area respectively, the ventilation systems control the pressure difference and air exhaust in the areas, and the bottom of the compartment is provided with an underframe connected with the vehicle chassis. Nucleic acid detection can be rapidly carried out by rapidly moving a PCR laboratory through a vehicle as a carrier; the structure is reasonable and compact, PCR test conditions are met, a PCR amplification operation table is carried, an amplification operation table comprises an isolation fuming cupboard, and the test anti-interference performance is enhanced; and the system carries the ventilation systems, and the amplification area, the isolation area and the preparation area are planned, so that the sample pollution probability is reduced, the environmental stability in the PCR laboratory is improved, and conditions required by detection in the mobile PCR laboratory are met.

The invention provides a test device used for a water pipe connector and an implementation method thereof. The test device comprises a test connector, a test bed, a tension bar installed on the test bed, a water machine system for providing water pressure for the test connector, a dynamometer, a pressure meter and a thermometer, wherein the water machine system and the test connector form a water circulating system; the pressure meter and the thermometer are used for displaying monitoring data; the tension bar is used for detecting the pressure endurance capability of the test connector; and the pressure endurance capability is displayed by the dynamometer. The test device has the following beneficial effects that: the test device can test such performances of the pipe connector as pressure endurance, drawing endurance and heat cycle and can test a certain performance of the connector or simultaneously test several performances jointly; the test parameters can be independently controlled by the component parts and can satisfy the test conditions in a short time; and the device is simple and convenient to operate and flexible and reliable to control, can completely satisfy test of various performances of the connector, solves the problems of the existing test devices and provides test ways for wide application of the water pipe connector.

The invention relates to the technical field of automobile anti-concave property testing equipment, and in particular to a high-precision centering automobile anti-concave property testing , which comprises a stand, a mounting base is arranged at the upper end of the stand, and a linear displacement transmission mechanism is mounted on the mounting base; the driving end of the linear displacementtransmission mechanism is connected to an optical centering device, which is used for carrying out normal loading centering on automobile sheet metals; and the linear displacement transmission mechanism drives the optical centering device to linearly move. By arranging the optical centering device, the high-precision centering automobile anti-concave property disclosed by the invention can more easily control normal loading on freely curved surfaces, the testing precision is high, and the problem that low testing precision is caused because the normal direction of a load application directioncan only be observed by the naked eyes of a tester is avoided.

The invention discloses an online detection device for rheology of a micro-injection molded polymer under an ultrasonic energy field and an online detection method. The device comprises a test mold, a heating unit and a power loading unit, the test mold comprises a core mold cover plate, a cavity thickness adjusting gasket, a core mold base plate and a material storage barrel which are sequentially arranged from top to bottom, a plasticizing cavity which is arranged in an up-down penetrating manner is formed in the core mold cover plate, the cavity thickness adjusting gasket, the core mold base plate and the material storage barrel, and a first core mold is clamped at the position, at one side of the plasticizing cavity, of the core mold cover plate; a viscosity measuring core mold is clamped at the position, located at the other side of the plasticizing cavity, in the the core mold base plate, and a runner on the first core mold is one of an injected runner or a to-be-injected runner ; the heating unit comprises a plasticizing heating resistor and a mold heating rod; and the power loading unit comprises an injection unit and a mold opening and closing unit. According to the device, on-line detection of the flow viscosity of polymer melt in four different modes can be realized; and on-line detection of the viscosity of the polymer melt under different cavity thicknesses can be completed.

The invention belongs to the technical field of building and provides a gridding-cloth alkali-resistant curing box. The gridding-cloth alkali-resistant curing box comprises a box body with a polyurethane thermal insulation layer and a box cover. A plurality of stainless-steel sample partitions with square holes are arranged in the box body. Each sample cage is separated into a plurality of layers, and each layer is provided with a pored partition with a rail. Heating pipes and a circulation pump with the circulation manner being entering from the bottom and discharging from the top are arranged below the box body. Copper refrigerating coils are arranged on two sides of the box body and are in close contact with the inner container of the box body. A protecting cover and the polyurethane thermal insulation layer are arranged outside the coils. A temperature and alkali concentration sensor which digitally displays the temperature and alkali concentration is further arranged in the box body and connected with an intelligent digital-display instrument. The box body is provided with a sound-light alarm device connected with the intelligent instrument. The gridding-cloth alkali-resistant curing box is simple to operate, high in work efficiency, high in control precision and capable of reaching the test condition completely satisfying the standard requirement.

The invention discloses a gas layer reducing resistance type physical simulation testing device and a testing method thereof and belongs to the field of fluid resistance measurement. The gas layer reducing resistance type physical simulation testing device comprises a water / air supply system, a water / wind tunnel system and a force measurement system. The water / air supply system combines a high-pressure air tank with a high-pressure water storage tank, and a middle experimental section of the water / wind tunnel system is fixed to a mounting frame through a front supporting seat and a rear supporting seat. In the force measurement system, a test model is fixed at the front end of a force transfer rod, extends into an a cylinder in the experimental section and then extends out through a firstlinear bearing on a cover plate, and the rear end of the force transfer rod butts against a force measurement female tooth at the front end of a dynamometer through a force measurement male tooth. Thetest model is hindered by interaction with fluid, acting force generated by the fluid pushes the test model, and the force transfer rod transfers the acting force borne by the test model to the dynamometer, so that resistance data of the test model are obtained. The gas layer reducing resistance type physical simulation testing device is simple and compact in structure, easy to operate, low in cost, stable and reliable in test and convenient in replacement of experimental models, and overcomes the defects of long preparation period and huge investment of water / wind tunnel experiments.

The invention discloses a turbine blade fault test system and an intelligent fault diagnosis method thereof. The test system includes an air supply system, a turbine main body system, a lubricating system and a measurement control system. When the system is running, the air supply system provides air source for the main turbine system, the lubrication system provides lubricating working fluid for the main turbine system, and the measurement control system is used to control the operation safety of the entire system and measure the required performance parameters. The present invention realizes accurate measurement of aerodynamic parameters and vibration parameters during turbine operation by building a turbine blade fault test system, obtains a large amount of test data of faulty blades, and establishes a fault diagnosis model based on convolutional neural network and deep transfer learning , learn, train and test the aerodynamic and vibration signals of faulty blades, and transfer them to real turbine units, laying the foundation for online fault diagnosis of turbine blades in large generator sets.

The invention provides a lightning impulse testing circuit and a lightning impulse testing method used for a capacitive composite insulation busbar system. The lightning impulse testing circuit comprises an impulse voltage source, an impulse voltage measuring device, a low pass filtering device, and a tested capacitive composite insulation busbar system. One end of the impulse voltage source is connected with the low pass filtering device, and the other end of which is connected with the high voltage end of the impulse voltage measuring device and the high voltage end of the tested capacitive composite insulation busbar system. The other end of the impulse voltage source is connected with the low voltage end of the impulse voltage measuring device and the low voltage end of the tested capacitive composite insulation busbar system, and is grounded. The low pass filtering device is formed by parallely connecting a capacitor Cp with a resistor Rp. The testing circuit is simple in layout, and the determining of the parameters of the circuit is convenient, and is easy to realize. The testing method satisfies testing requirements of nominal capacitance 5000pF and below capacitive composite insulation busbar lightning impulse tests, and completely satisfies requirements of a GB / T16927.1-2011 standard and a GB / T 22838.-2008 standard on lightning impulse experiment waveform parameters.

The invention provides a scramjet engine tracer PLIF multi-parameter distribution measurement device and a scramjet engine tracer PLIF multi-parameter distribution measurement method, and the scramjet engine tracer PLIF multi-parameter distribution measurement device is constructed. A plurality of CCD cameras are used for obtaining a tracer PLIF image when fuel injection conditions are simulated, a relation f (P) between a laser-induced fluorescence image intensity ratio I1 / I2 obtained through constant-temperature and variable-pressure image intensity calibration and pressure intensity P, and a relation f (T) between a laser-induced fluorescence image intensity ratio I3 / I4 obtained through constant-temperature and variable-pressure image intensity calibration and temperature T; the relation f (n) between the laser-induced fluorescence image intensity I5 obtained by calibrating the image intensity of the constant-pressure and constant-temperature variable component concentration and the tracer mass concentration n in the cavity is obtained, and the concentration, the pressure intensity and the temperature field quantitative distribution result of the jet fuel of the scramjet engine can be directly obtained. According to the invention, synchronous measurement of components, pressure intensity and a temperature field in the scramjet engine can be realized.

The invention discloses a water-water / water-glycol type water source heat pump assembly performance testing device. The w water-water / water-glycol type water source heat pump assembly performance testing device is of a pipe water mixing / dividing wall heat exchanging structural design and comprises a cooling water system, a coolant water system, a pipe water mixing / dividing wall heat exchanging system, a heat dissipation system and a glycol solution storage system. According to the water-water / water-glycol type water source heat pump assembly performance testing device, test determination and calculation on main tests on the coolant water side is performed through liquid coolant; test determination and calculation on verification tests on the cooling water side is performed through an assembly heat balancing method, so that the performance parameters such as the refrigerating capacity, the refrigerating power consumption and the refrigerating energy efficiency ratio and the important technical parameters such as temperature and flow of the water-water / water-glycol type water source heat pump assembly can be measured accurately, and importable means can be provided for performance testing and development research of the water-water / water-glycol type water source heat pump assembly. The water-water / water-glycol type water source heat pump assembly performance testing device has the advantages of being energy-saving in operation, accurate in testing results and capable of achieving all-weather all-condition testing.

The invention provides a test device used for a water pipe connector and an implementation method thereof. The test device comprises a test connector, a test bed, a tension bar installed on the test bed, a water machine system for providing water pressure for the test connector, a dynamometer, a pressure meter and a thermometer, wherein the water machine system and the test connector form a water circulating system; the pressure meter and the thermometer are used for displaying monitoring data; the tension bar is used for detecting the pressure endurance capability of the test connector; and the pressure endurance capability is displayed by the dynamometer. The test device has the following beneficial effects that: the test device can test such performances of the pipe connector as pressure endurance, drawing endurance and heat cycle and can test a certain performance of the connector or simultaneously test several performances jointly; the test parameters can be independently controlled by the component parts and can satisfy the test conditions in a short time; and the device is simple and convenient to operate and flexible and reliable to control, can completely satisfy test of various performances of the connector, solves the problems of the existing test devices and provides test ways for wide application of the water pipe connector.

The invention discloses a heat exchanger performance test and energy efficiency evaluation system. A to-be-tested platform is provided with an oil-water to-be-tested heat exchanger and a water-water to-be-tested heat exchanger; inlets of a hot oil loop and a hot water loop are respectively communicated with hot side outlets of the two to-be-tested heat exchangers; the steam loop comprises a steam-oil heat exchanger and a steam-water heat exchanger; the steam-oil heat exchanger and the steam-water heat exchanger provide exchange heat through steam; inlets of the steam-oil heat exchanger and the steam-water heat exchanger are respectively communicated with outlets of the hot oil loop and the hot water loop, and outlets of the steam-oil heat exchanger and the steam-water heat exchanger are respectively communicated with hot side inlets of the two to-be-tested heat exchangers; an outlet of the cooling water loop is communicated with cold side inlets of the two to-be-tested heat exchangers; an inlet of the cold water loop is communicated with cold side outlets of the two to-be-tested heat exchangers, and an outlet of the cold water loop is communicated with an inlet of the cooling water loop; and the data acquisition system comprises a plurality of detection sensors mounted on the pipeline.

The embodiment of the invention provides a device for testing strength of a touch screen, which comprises an accommodating part and an elastic part, wherein the accommodating part is used for accommodating the touch screen to be tested; one end of the elastic part is fixed and the other end of the elastic part is connected with the accommodating part; and the elastic part is used for generating an elastic force, which is applied to the accommodating part and is lasted from an initial position to a test position, to drive the touch screen to move by the accommodating part so as to enable the touch screen to be impacted at the test position. When the elastic part pushes the touch screen to the test position from the initial position, a stroke of the elastic part between the initial position and the test position is positioned in a working stroke of the elastic part, and thus, the strength test on the touch screen for each time can be guaranteed to be consistent and accord with the testing conditions and uncertainty in the standard testing process is eliminated.

The invention discloses a rotatable netting device for researching hydrodynamic force. The rotatable netting device comprises a supporting frame, a rotating device, a telescopic rod, a sliding device, a six-component sensor, a connecting rod, a netting frame and a netting. In the process of researching the hydrodynamic force of the planar netting under the pure flow effect, the netting is fixedly designed through the netting frame to reach a tensioning state, the netting is matched and fixed with the netting frame by adjusting the length of the telescopic rod, the incident flow angle of the netting is adjusted through the rotating device, and the netting frame is subjected to two-dimensional movement by moving the sliding device and adjusting the length of the telescopic rod. The netting test device can meet various netting assembly conditions and test working conditions due to the characteristics of detachability, modularization and multiple functions. According to the invention, adjustable parameters of a single netting test device are increased, and the netting test efficiency is improved.

The invention belongs to the technical field of building and provides a gridding-cloth alkali-resistant curing box. The gridding-cloth alkali-resistant curing box comprises a box body with a polyurethane thermal insulation layer and a box cover. A plurality of stainless-steel sample partitions with square holes are arranged in the box body. Each sample cage is separated into a plurality of layers, and each layer is provided with a pored partition with a rail. Heating pipes and a circulation pump with the circulation manner being entering from the bottom and discharging from the top are arranged below the box body. Copper refrigerating coils are arranged on two sides of the box body and are in close contact with the inner container of the box body. A protecting cover and the polyurethane thermal insulation layer are arranged outside the coils. A temperature and alkali concentration sensor which digitally displays the temperature and alkali concentration is further arranged in the box body and connected with an intelligent digital-display instrument. The box body is provided with a sound-light alarm device connected with the intelligent instrument. The gridding-cloth alkali-resistant curing box is simple to operate, high in work efficiency, high in control precision and capable of reaching the test condition completely satisfying the standard requirement.