电液伺服加载试验系统仿真研究  

Simulation Analysis of Electrohydraulic Servo Loading System

作　　者：刘博[1] 王晓晖[1] 杨志鹏[1] 张静[1] 侯京锋[1] 

机构地区：[1]北京强度环境研究所,北京100076

出　　处：《液压气动与密封》2014年第6期21-25,共5页Hydraulics Pneumatics & Seals

摘　　要：介绍电液伺服加载试验系统的的工作原理,利用功率键合图建立系统的阀控非对称作动器及负载数学模型,并采用AMESim软件对系统进行了仿真研究,经试验验证比照,证明所建立模型的正确性。针对加载系统位控-力控模式切换环节,设计位控-力控并联控制器,使用AMESim和MATLAB软件建立联合仿真模型,仿真分析证明通过采用控制电流平滑切换模块可以有效抑制切换过程的冲击现象,避免过试验情况的发生,提高了加载系统的安全性。The work principle of Electrohydraulic Servo Loading System is briefly introduced, and the math model is derived by the way of bond graph. Simulation study is carry out by using AMESim, and the model is proved to be correct by comparing the result with the test. Focus on the process of position and force control conversion, a parallel controller of the position and force transform is designed, and the module of smoothly switch can restrain the phenomenon of impact during the transform is proved by the combined simulation using AMESim and MATlab simultaneously, and also can improve the security of system.

关 键 词：电液伺服 位置控制 力控制 模式切换 

分 类 号：TH137[机械工程—机械制造及自动化]