液压能源压力波动对伺服作动器动态特性影响分析

Influence of Hydraulic Energy Pressure Fluctuation on Dynamic Characteristics of Hydraulic Servo Actuator

该文讨论了一种机械反馈式液压伺服作动器在测试中受能源压力波动影响,在活塞杆位移输出上叠加一定的波动量,从而导致幅频特性测试值变化的情况。通过对能源波动曲线进行分析,发现能源压力波动中存在某个频率典型的交流分量,伺服阀能够对这个频率点的压力波动产生响应。

This paper discusses a mechanical feedback hydraulic servo actuator,which is affected by the fluctuation of energy pressure in the test,superimposes a certain fluctuation on the displacement output of piston rod,resulting in the change of amplitude frequency characteristic test value.By analyzing the energy fluctuation curve,it is found that there is a typical AC component of a certain frequency in the energy pressure fluctuation,and the servo valve can respond to the pressure fluctuation at this frequency point.