基于液压伺服作动器的主动隔振系统实验研究  

Experimental Study on Active Isolation of Vibration Based onHydraulic Servo Actuators

作　　者：满孝臣 焦素娟[1] 龙新华[1] 吴闯 MAN Xiaochen;JIAO Sujuan;LONG Xinhua;WU Chuang(State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《噪声与振动控制》2020年第3期207-212,共6页Noise and Vibration Control

基　　金：国家重大专项课题资助项目(2017ZX04010001-007)。

摘　　要：以两自由度系统为研究对象,设计一种液压伺服作动器及其振动主动控制系统。通过建立两自由度系统和伺服系统耦合数学模型,用传递函数分析法计算出主动隔振系统力传递率。并搭建包括上下层质量、液压作动器、液压系统、控制系统的主动隔振实验平台,探究不同激振力频率和幅值的工况下主动隔振系统的隔振效率。实验结果表明,基于液压伺服作动器的主动隔振系统能够有效降低力传递率,在不同工况下系统隔振效率可达60%~70%。A hydraulic servo actuator and its active vibration control system of a double-stage isolation system were introduced.Mathematical model of the double-stage isolation system and servo system model were established for determination of the transmission rate of this active vibration isolation system by the transfer function analytical method.An experimental system including the masses of the two stages,hydraulic actuator,hydraulic system,control system was established and the multi-case experiments were carried out under different excitation force frequencies and different excitation force amplitudes.The results show that the active vibration isolation system based on the hydraulic servo actuator can effectively reduce the force transmission rate,and the system vibration isolation efficiency can reach 60%-70%under different working conditions.

关 键 词：振动与波 液压作动器 主动隔振 力传递率 

分 类 号：O328[理学—一般力学与力学基础] TB535[理学—力学]