Aiming at the vibration and noise in the hydraulic position servo system of the series servo valve caused by pressure shock,this paper analyzes the pressure shock characteristics of a two-stage series servo valve hydraulic position servo system using an AMESim simulation model.The effects of system flow rate,servo valve opening gain,external load,and system overflow pressure on system pressure are investigated.The results show that,under varying flow rate or overflow pressure conditions,the series servo valve configuration reduces the hydraulic cylinder inlet impact pressure by 8％to 11％.While the suppression effect is less significant with changes in gain or external load,the overshoot of impact pressure decreases,leading to a more stable system response and reduced vibration.Finally,a new approach with higher reliability and adaptability is proposed for broader application.
关键词
串联伺服阀/压力特性分析/AMESim/伺服系统
Key words
series servo valve/pressure characteristic analysis/AMESim/servo system
维普
万方数据