电液振动台正弦运动控制方法  

Sine Motion Control of Electrohydraulic Shaking Table

作　　者：韩朝阳 范大莽 关广丰 熊伟 王海涛 HAN Zhao-yang;FAN Da-mang;GUAN Guang-feng;XIONG Wei;WANG Hai-tao(Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, Liaoning 116026)

机构地区：[1]大连海事大学船舶与海洋工程学院,辽宁大连116026

出　　处：《液压与气动》2021年第11期18-24,共7页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51675073);中央高校基本科研业务费专项资金(3132019352)。

摘　　要：为提高正弦振动模拟试验的控制精度,针对电液振动台受不确定干扰力影响的问题,以单轴电液振动台作为控制对象,使用滑模控制抑制不确定干扰力对正弦振动控制精度的影响,同时加入最小控制综合(Minimal Control Synthesis,MCS)算法补偿系统在考虑伺服阀动态后滑模控制器的不足,结合三状态控制实现加速度控制。通过MATLAB/Simulink建立控制策略仿真模型进行仿真分析。结果表明:该复合控制策略可以有效抑制干扰力影响并且提高正弦振动控制精度。An adaptive control method is presented for the electro-hydraulic shaking table to improve the accelertaion sine waveform tracking performance.The control precision of the electro-hydraulic shaking table is affected uncertain interference force.The single-axis electro-hydraulic shaking table is used as the control object,use the sliding mode control to suppress the influence of uncertain interference force on the accuracy of sinusoidal vibration control,and the minimum control synthesis(MCS)algorithm is added to compensate the lack of the sliding mode controller after considering the dynamics of the servo valve,combined with three-variable controller to achieve acceleration control.The control strategy simulation model is established by MATLAB/Simulink for simulation analysis.The results show that the compound control strategy can effectively suppress the influence of interference and improve the accuracy of sinusoidal vibration control.

关 键 词：电液振动台 滑模控制 最小控制综合算法 三状态控制 干扰力补偿 

分 类 号：TH137[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]