Hydraulic load simulation device
A load simulation, hydraulic technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system test, mechanical equipment, etc., can solve the problem of not being able to simulate asymmetrical load, so as to reduce the development cost and risk, shorten the development and verification effect of cycle
Inactive Publication Date: 2017-03-22
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology
Since the traditional hydraulic load simulation system is used, only symmetrical loads can be simulated (see "Aircraft Hydraulic System Flow Pressure Load Simulation" written by Jiang Huijun et al. and published in "Acta Aeronautical Science"), and asymmetrical loads cannot be simulated
The impact of asymmetrical loads on the system has not been comprehensively assessed before the ground test of the whole machine. For example, it will have a greater impact on the booster circuit of the self-supplied booster fuel tank and the impact on the oil return circuit of the system, which has brought more problems to the development of the system. much risk
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[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings. The present invention is based on such an idea, relying on the opening size of the controllable throttle valve to realize the simulation of the load pressure; relying on the control of the movement of the asymmetrical hydraulic cylinder to realize the simulation of the volume change of the hydraulic oil.
[0015] One of the cores of the present invention is the pressure simulation subsystem. This subsystem adopts an electronically controlled proportional throttle valve 2, which adjusts the size of the opening by receiving the command signal of the control subsystem. The B port of the proportional throttle valve 2 (high pressure oil circuit) ) to establish a certain hydraulic pressure, the pressure sensor 3 senses the pressure of the high-pressure oil circuit, the control system collects the pressure of the pressure sensor 3, and compares it with the required con...
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The invention belongs to electromechanical liquid comprehensive control technologies, and relates to hydraulic energy system hydraulic loads. The innovation of a simulation method for symmetrical and asymmetrical hydraulic loads is included. The asymmetrical hydraulic loads mean that when one actuation is loaded to act, the volumes of oil liquid entering and getting out of a load system are unequal. A hydraulic load simulation device comprises a control subsystem achieving comprehensive control over hydraulic load simulation, a pressure simulation subsystem achieving load pressure simulation through throttling, and a volume simulation subsystem achieving load volume flow simulation by controlling an asymmetrical actuation barrel to move through an electromagnetic valve. According to the hydraulic load simulation device, hydraulic load simulation of a hydraulic energy system is achieved, symmetrical load simulation can be achieved, and meanwhile asymmetrical hydraulic load simulation can be achieved; and the hydraulic energy system can be checked overall in the airplane development process at the stage that real hydraulic load design is not completed, and the development progress of the airplane hydraulic system can be greatly improved.
Description
[0001] Technical field [0002] The invention belongs to the electromechanical-hydraulic comprehensive control technology, and relates to the innovation of the hydraulic load of the hydraulic energy system, including the simulation method of symmetrical and asymmetrical hydraulic loads. Background technique [0003] In the development of the aircraft hydraulic system, it is often necessary to carry out the principle test of the hydraulic energy system, the joint test of the C-shaped part system, the joint test of the S-shaped part system, and the whole aircraft ground simulation test. However, before the whole aircraft ground simulation test, the hydraulic pressure There is no real hydraulic load in the energy system, so it is urgent to develop a hydraulic load simulation device to simulate the real load of the hydraulic energy system. According to the introduction of the document "Aircraft Hydraulic System Flow Pressure Load Simulation", it shows that the design and developme...
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IPC IPC(8): F15B19/00
CPCF15B19/007
Inventor 江辉军李利
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA