闭式电液伺服系统泄压时间的一种新用途

摘要

采用AMEsim软件对闭式电液伺服系统泄压过程进行仿真和试验研究,解释了伺服阀前置级油滤纳垢程度与伺服阀静耗量以及系统泄压时间的影响关系.提出可以将闭式电液伺服系统泄压时间作为伺服阀油滤纳垢程度的一种新的表征方式,监控电液伺服系统的健康程度.%Simulation and experiments of pressure relief process on closed electro-hydraulic servo system are implemented based on AMEsim, showing that the heavily clogging of servo-valve's internal filter may influence the servo-valve's leakage and the system's pressure relief time significantly. Therefore, an abnormally increased pressure relief time can be used to indicate servo-valve's internal filter's clogging level and to further monitor electro-hydraulic servo system's condition.