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Speed synchronously controlled electrohydraulic load simulator

A technology of synchronous control and electro-hydraulic load, applied in the field of simulation, can solve the problems of large disturbance frequency correlation, difficult disturbance elimination effect, and poor elimination effect, and achieve the effect of simple and easy method, easy promotion and use, and obvious elimination effect

Inactive Publication Date: 2005-08-24
BEIHANG UNIV
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Problems solved by technology

This technology has been widely used in actual systems, but there is obviously the problem that the interference elimination effect is difficult to improve, especially due to the influence of the motion disturbance frequency, the interference elimination effect is quite different, and the best interference elimination ability on the market at present It is about 80%, and the correlation with the disturbance frequency is too large, especially when the frequency is high, the effect of eliminating excess force will become very poor

Method used

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  • Speed synchronously controlled electrohydraulic load simulator
  • Speed synchronously controlled electrohydraulic load simulator
  • Speed synchronously controlled electrohydraulic load simulator

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Embodiment Construction

[0012] 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. Essentially, if the transient velocity of the steering gear and the transient velocity of the loading device can be kept consistent in real time, there will be no interference problem of redundant force. The core of the present invention is to adopt the control signal of the steering gear as the speed synchronization instruction signal of the loader, and participate in figure 2 , the speed synchronous control electro-hydraulic load simulator of the present invention includes a position servo system composed of a steering gear driver 6, a steering gear servo valve 7, a steering gear angular displacement sensor 8 and a steering gear actuator 10, and the steering gear command signal Input the same-phase input end of steering gear driver 6, the output signal of steering gear angular displacement sensor 8 inputs the i...

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Abstract

An electro-hydraulic load simulator with synchronous control of speed is an improvement on electro-hydraulic servo loading system for the rudder of fly vehicle, and is composed of a position servo system, a torque servo system and simulative momental between the first two. Its feature is that the output of rudder driver in position servo system is connected with the input of compensator in torque servo system. Its advantages are high effect on eliminating excess force and high interference eliminating power up to 95%.

Description

technical field [0001] The invention belongs to the technical field of simulation and relates to the improvement of an electro-hydraulic servo loading device for an aircraft rudder surface. Background technique [0002] The electro-hydraulic torque load simulator is based on the principle of hydraulic servo control, and uses torque feedback to realize closed-loop control of torque. The disturbance of steering gear motion is the key factor affecting the accuracy of torque control, that is, the so-called redundant force. The performance of the system can be improved by expanding the bandwidth of the system and compensating for excess force, and the tracking accuracy of the load spectrum can be improved. The structural principle of the existing electro-hydraulic servo loading system is as follows: figure 1 As shown, the left side is the position servo system, which controls the deflection of the servo. The right side is the torque servo system, which generates the loading tor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455
Inventor 焦宗夏王少萍华清王晓东陶建峰
Owner BEIHANG UNIV