一、前言机液位置控制伺服机构是最基本的液压伺服系统。它结构简单、工作可靠,因而广泛应用于航空、航天、各种工程机械、采矿机械以及数控、仿形机床上。作为助力器使用时,机液伺服系统的频宽和精度通常要求不高,设计主要是围绕稳定性进行的。但是,由于机液伺服系统的反馈机构存在间隙和刚度不够,容易引起不稳定,以及 First, the preamble Machine position control servo is the most basic hydraulic servo system. Its simple structure, reliable work, which is widely used in aviation, aerospace, all kinds of construction machinery, mining machinery and CNC, copying machine. When used as a booster, the width and accuracy of the LC servo system are usually not demanding, and the design is mainly about the stability. However, due to the lack of clearance and stiffness in the feedback mechanism of the LC servo system, instability is easily caused and