34 results about "Control loading system" patented technology

The invention discloses an ocean engineering pile foundation experiment simulation apparatus and method under long-term horizontal cyclic loading. The apparatus comprises: an osmotic force system which provides continuous pressurized water for a saturated sandy soil foundation so that a uniform osmotic flow field forms in the sandy soil foundation to simulate a hyper-gravity environment; a displacement control loading system and a force control loading system that apply horizontal cyclic loadings to an offshore wind turbine superstructure model; a measuring system used for measuring water pressure before the entry into the saturated sandy soil foundation, displacements of the offshore wind turbine superstructure model and a pile model, strain of the pile model, and surface displacement of sandy soil; an uninterrupted power supply system used for powering the osmotic force system, the displacement control loading system, the force control loading system and the measuring system, thereby ensuring all systems can run stably in a long time; the invention also provides an experiment method of the apparatus; the apparatus and the method are widely applicable and suitable for various ocean engineering structures such as oil platforms and offshore wind turbines.

The invention discloses a dynamic water quicksand stratum reinforcement grouting diffusion rule visual simulation experimental device and method. The device comprises an experimental box, a hydraulic pressure control loading system, a vertical hydraulic loading mechanism and a lateral hydraulic loading mechanism, a double liquid chemical grouting system and a test system connected to a computer. The method adopts an engineering geomechanical experimental model with a coal measure stratum physical analog simulation material, a waterproof stratum and an aquifer of certain height filled in the experimental box, aquifer grouting and water-plugging reinforcement visual physical simulation test is carried out hermetically under the conditions of circulating dynamic water pressure and vertical and horizontal lateral stress to acquire or quantitatively describe and analyze the diffusion rule of double liquid chemical grout in the water-bearing sandstone layer or quicksand layer, thus realizing visual simulation experiment of the double liquid component chemical grouting and water-plugging process under a similar water burst or water inrush condition. The method can effectively recognize and reveal the slurry diffusion and consolidation characteristics under a mining dynamic water condition, determine rational grouting and water-plugging parameters, and evaluate the grouting effect.

The invention discloses a simulation test device and a simulation test method for coal measure strata fracture seepage under loading and unloading conditions. The device comprises an experimental tank, a hydraulic pressure control loading system, a confining pressure loading system, a fracture structure, a deformation test system and a seepage characteristic parameter test system. According to the method, a way of filling the experimental tank with a coal measure strata physical similar simulation material and large-scale concrete block structure fracture is adopted, physical simulation tests of coal measure strata large-scale structure fracture deformation and seepage coupling effect processes due to the loading and unloading action under the conditions of top plate load, top plate hydraulic pressure, and adjustable confining pressure can be implemented, so that various mechanisms and key parameters such as different coarse structure fracture macroscopic deformation, saturated seepage and mutual coupling effect thereof, fracture seepage characteristic mutation under the loading and unloading conditions can be obtained or quantitatively described, further, mining-induced fracture structure evolution and seepage dynamic characteristic under the mining disturbance action can be effectively understood and revealed, and a theoretical basis is provided for further deepened research on mine water disaster mechanisms as well as prevention and control technologies.

The invention relates to a multi-scale soil-rock-mixture-bed rock interface shearing mechanical characteristic test device. The multi-scale soil-rock-mixture-bed rock interface shearing mechanical characteristic test device comprises a test piece system, a balance control system, a loading system, a servo control system and a data acquisition system, wherein the servo control system is used for controlling the loading system to work; the data acquisition system is used for acquiring image information of an multi-scale soil-rock-mixture-bed rock interface through the whole process of shearing,perpendicular loading force and displacement as well as shearing; and the test piece system comprises an upper rectangular tempered glass shearing box used for filling a soil-stone-mixture sample, a lower rectangular steel shearing box for filling a rock sample and a loading plate. The multi-scale soil-rock-mixture-bed rock interface shearing mechanical characteristic test device can realize research on shearing mechanical characteristics of soil-rock-mixture-bed rock interfaces of various dimensions and complex interface properties, meets straight shearing test requirements of base rock interface shapes under different kinds of perpendicular stress, different rock content and different moisture contents, and further can take effects such as erosion and softening, on the interface, of water into consideration.

The invention provides a uniaxial bidirectional synchronous control and electromagnetic loading dynamic shear test device and test method. The uniaxial bidirectional synchronous control and electromagnetic loading dynamic shear test device comprises a support platform, a loading rod part system, an electromagnetic pulse transmission system, a normal pressure servo control loading system and a datamonitoring and acquisition system. On the basis of the test device, dynamic shear test study of rock materials can be carried out under constant normal pressure under the conditions close to the actual work conditions, and complete rock samples with different test sizes or joint rock samples with single structure surfaces can be selected according to test demands to carry out study of dynamic shear mechanical characteristics and shear damage rules under the condition that the strain rate is 10<1>-10<3> s<-1>, so that important theoretical basis and technique support are provided for design, construction, protection and safety and stability evaluation of rock engineering, structure engineering and the like.

The invention discloses a sunk duct piece test platform which comprises a soil pit, a duct piece, a loading system and a control system, wherein the soil pit is an open-ended cylindrical concave pit dug and constructed underground; the duct piece is placed in the middle of the soil pit in a manner that the axis of the duct piece is vertical; the loading system comprises a string ring structure, a hydraulic cylinder group and two tensile hydraulic cylinders; the string ring structure is embedded into the internal wall of the soil pit; the hydraulic cylinder group comprises three rows of loading cylinders; each row of loading cylinders is provided with 16 hydraulic cylinders; one end of each hydraulic cylinder is connected with the external wall of the duct piece; the other end of each hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the hydraulic cylinder group loads the duct piece; one end of each tensile hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the other end of each tensile hydraulic cylinder is connected with the internal wall of the duct piece by an anchor rod and loaded on an anti-floating point of the duct piece; and the control system comprises a pump station, an upper and lower half-ring control component, a middle whole ring control component and an anti-floating point control component, is connected with the loading system and controls the loading system to load the duct piece. The platform saves the space, is easy and simple to operate, and can simulate an anti-floating condition of the duct piece, and a test result accords with the engineering practice.

The invention discloses an experimental device for testing the current-carrying capacity of a high-temperature superconducting tape or coil under multi-field coupling. The device comprises a loading system module, a low-temperature system module, a magnetic field system module and a measurement system module. The loading system module, the low-temperature system module and the magnetic field system module are used for comprehensively simulating the actual application environment of a superconducting wire. The measurement system module is used for measuring characteristic parameters of a superconducting wire or coil in states of temperature zone disturbance, magnetic field disturbance, and stress strain on the superconducting wire or coil. In addition, the invention also discloses a methodcomprising the following steps: acquiring a high-vacuum environment and a low-temperature environment and controlling a loading system to carry out stress loading on the high-temperature superconducting tape or the coil or controlling a magnetic field system to carry out magnetic field loading on the high-temperature superconducting tape or the coil; and controlling a constant current source to carry out current loading on the superconducting tape or the coil and recording the change of a nanovoltmeter. Therefore, a multi-field coupling test problem of the high-temperature superconducting tapetest is solved; and the domestic blank is filled.

The invention relates to a tractor life test platform, comprising: a loading system for connecting with a tractor to apply load to the tractor; an elevator control system for connecting with the tractor to control the operation of the tractor; a simulation unit for connecting to the loading system and the elevator control system so as to control the loading system and the elevator control system to operate respectively; a configuration input module for receiving and transmitting configuration information; a logic control module connected with the simulation unit and the configuration input module and used for receiving the configuration information and controlling the simulation unit to operate according to the configuration information. The logic control module of the tractor life test platform may control the loading system and the elevator control system to operate according to the configuration information sent by the configuration input module so as to simulate the actual operation condition of an elevator, so that operational stability of the tractor may be verified accurately and quickly with no need for testing with an elevator well, and testing cost is reduced greatly.

The invention belongs to the field of asphalt mechanical performance tests and particularly relates to a test device and a test method for asphalt rotational shear creep and repeated creep recovery. The device comprises a test platform, a test specimen, a temperature control system, a loading system and a computer control system. The computer control system automatically controls maintenance temperature and creep test temperature of the test specimen through the temperature control system. Simultaneously, the computer control system further controls the loading system to complete asphalt rotational shear creep and repeated creep recovery of the asphalt test specimen. The device is applicable to testing creep and repeated creep recovery performance of asphalt cements such as common asphalt, SBS (styrene butadiene styrene block copolymer) modified asphalt, rubber asphalt and other polymer modified asphalt under rotational shear and temperature-control environments.

The invention discloses a testing system for the long-time creep property of an explosive. The testing system comprises a control console, a temperature control system, a loading system and test beds,wherein the temperature system and the loading system are connected with the control console, and the test beds are connected with the temperature control system and the loading system; creep testingunits are arranged on the test beds and installed in a sealed transparent cover, and a temperature control device is arranged below the transparent cover and connected with the temperature control system; the creep testing units are further connected with the loading system; and a temperature sensor is arranged in the transparent cover, load sensors and displacement sensors are arranged on the creep testing units, the temperature sensor, the load sensors and the displacement sensors are all connected to a testing control box, and the testing control box controls temperature adjustment of thetemperature control device and pressure loading adjustment of the loading system and achieves information transmission with the control console through a communication line. The invention further provides a testing method for the long-time creep property of the explosive. According to the testing system and testing method for the long-time creep property of the explosive, the cost can be significantly reduced, the research cycle is shortened, and the huge application value is achieved.

The invention discloses a method for simulating strength of a reversible control loading system of a flight simulator. A stick force simulation model identical with a reversible control system of a real plane is built, and is provided with a servo trim tab. Due to the fact that the level force simulation model and the real plane are the same in actual composition, force generated by the servo trim tab can be independently debugged, debugging is simplified compared with a hinge moment coefficient adjusting method in the prior art, the time for debugging and the production cycle of a product are shortened, and the time for debugging is shortened by 42.5% compared with the hinge moment coefficient adjusting method. Therefore, product competitiveness is improved; the level force simulation model is suitable for simulating force of a joystick, with a servo trim tab, of the reversible control system of the plane, and also suitable for stimulating force of a joystick, without the servo trim tab, of the reversible control system of the plane; coefficients of the level force simulation model can be modified along with the actual control of the simulated plane, and the level force simulation model has universality. According to the method for simulating strength of the reversible control loading system of the flight simulator, influence caused by aerodynamic force on hinge moment of a control surface is effectively eliminated, and fidelity of simulation of force of the joystick of the reversible control system is improved.

The invention discloses a v variable-frequency, high-precision and ultrahigh-hydraulic pressure control loading system and method. The system comprises three oil ways with the same structures; each oil way correspondingly controls one loading direction in a three-axle loading device; each oil way comprises a control system, a detecting system and a hydraulic loading system; the detecting system comprises an oil pressure sensor and a load pressure sensor; the oil pressure sensor detects the oil pressure of the corresponding oil way and the oil pressure in an oil cylinder; the load pressure sensor is arranged between a piston of the oil cylinder and a loading cushion block for detecting a load acted on a test piece by the oil cylinder in real time; the hydraulic loading system comprises an oil pool, a plunger pump, an oil pump and a stepper overflow valve connected through oil pipes to form a closed loop to finish loading and unloading of ultrahigh pressure of the oil ways; the control system obtains real-time oil pressure and load of the hydraulic system; and the stepper overflow valve and a frequency conversion mechanism are used for controlling loading, unloading and the loading and unloading speed to realize precise control.

The invention discloses a helicopter control load system based on an actual control lever system which mainly comprises a human-sensing loading device, a matching rod system and a control unit and control loading system software; the system can simulate the control load system in helicopter flight training, and satisfy the static and dynamic control characteristics of a helicopter under differentflight conditions and different control modes. The invention also discloses a simulation implementation method based on actual control lever system for a helicopter control load system. Firstly, according to the structure of an actual control system, the actual control lever system is equipped; a human-sensing loading equipment is installed at a corresponding position of the control load system, and connected into the matching rod system through a connecting rocker arm, and the human-sensing loading equipment adopts the actual assembled parts; the human-sensing loading equipment, a rudder control box and a control computer are connected through aviation cables; the control load system is controlled by the control software, and the control characteristics under various flight conditions arerealized.

The invention discloses an in-situ ultra-high temperature tensile experimental device based on a computed tomography system. The device comprises a CT test system for in-situ observation of an ultra-high temperature tensile specimen, a loading system for applying a load, a loading control system for controlling the loading system, a heating system for heating the sample, a temperature measurementsystem for measuring the ambient temperature of the sample, a protection gas device for simulating the gas environment under the service conditions of the sample, and a temperature control system forcontrolling the heating system and receiving temperature information fed back by the temperature measurement system. The heating system is respectively connected to the temperature measurement systemand the loading system. The loading system is connected to the CT test system. Based on a CT platform, the conductive material is subjected to tensile loading in an ultra-high temperature environmentand the change of the internal appearance of the conductive material is detected in real time.

The invention relates to a continuous loading rock mechanical device matched with X-optical mechanical scanning. An enhanced image system comprises a constant-pressure injector, a capillary tube and a contrast agent; a continuous control loading system comprises an experiment loading platform, a separation type hydraulic jack, a hydraulic control loading oil pump, a spoke pressure sensor, a digital display gauge and a computer; the experiment loading platform is formed by connecting a top seat, a bottom seat, a loading disc and a stress uniform distribution weight through a column rod; the separation type hydraulic jack is connected with the hydraulic control loading oil pump through an oil pipe; the oil pipe is provided with a flow meter; the capillary tube is connected with the constant-pressure injector and the experiment loading platform respectively; the contrast agent is injected into a test piece sample in the experiment loading platform through the constant-pressure injector and the capillary tube; the spoke pressure sensor is connected with the digital display gauge through an electric lead wire; and the digital display gauge is electrically connected with the computer. By virtue of the continuous loading rock mechanical device, data can be conveniently induced and analyzed; and the continuous loading rock mechanical device has a small volume and is convenient to move; and high-definition DR/CR image scanning pictures can be obtained, and quantitative analysis is convenient to realize.

The invention provides a control loading system for a drive operation system of a flight simulator. The system includes an aircraft real data storage, a data motion calculation server and a data calculator, a hydraulic pressure servo computer. The data operation calculation server includes a configuration modeling module, a mechanics modeling module, a data verification module and a matching module. The hydraulic pressure servo computer includes a control module, a simulation communication verification module and a data collection module. The data collection module is in communicational connection with a motion platform through a motion platform communication module. The data collection module is in communicational connection with a driver cabin instrument through a driver cabin instrumentcommunication module. According to the invention, different hydraulic pressure auxiliary power systems are controlled through aircraft real flight data to generate simulation auxiliary power identical to practical flight auxiliary power. The simulation auxiliary power counteracts with a part of resistance of an operation mechanism, so that a driver can have a true force feeling of operation, thereal state during a flight of an aircraft can be simulated effectively and the dynamic simulation degree is high.

The invention discloses anti-seepage testing equipment and an anti-seepage testing device. The anti-seepage testing equipment comprises a loading system, a control system and a water storage container, wherein the loading system is communicated with the water storage container; the loading system is used for exerting water pressure to a part to be tested; the control system is connected with the loading system; the control system is used for controlling the loading system to provide water pressure to the part to be tested. By adopting the anti-seepage testing equipment and the anti-seepage testing device disclosed by the invention, with the combination of the loading system, the control system and the water storage container, automatic loading process and data recording are achieved when anti-seepage testing on the part to be tested is carried out, in addition, in the loading process, the water pressure can be automatically adjusted, and accurate anti-seepage testing can be carried out.

The invention discloses an engineering rock mass mechanical parameter advance borehole in-situ test device and an application method thereof. The device comprises a touch control loading system (1), aTBM advanced drill rod (2), a hydraulic loading system (3), and a control system (4), the touch control loading system (1) is mounted in the front end of the TBM advanced drill rod (2), the hydraulicloading system (3) is connected to the touch control loading system (1), the control system (4) is connected with the touch control loading system (1) and the hydraulic loading system (3), the touchcontrol loading system collects pressure and displacement data of a conical probe (11) in the loading process through a pressure sensor (13) and a displacement sensor (14), through a video camera (15), rock mass surface states in the loading process are recorded, the device is light and small, easy to operate, and high in automation degree, a large amount of rock mass mechanical parameters of thefront of a tunnel face can be obtained, a tunnel supporting basis is provided, and tunnel construction safety is ensured.