中国机械工程2013，Vol.24Issue(3)：317-321,5.DOI:10.3969/j.issn.1004-132X.2013.03.007
时滞对振动主动控制系统控制效果的影响分析
Study on Control Effects of Active Control Systems with Time Delays
摘要
Abstract
In order to slove the problems of time delays in feedback control may result in the unstable motion of an active controlled system for vibrations in actual engineering applications and to obtain the optimal control effect, by solving a kind of dynamic equation of control system with double time delays with a modified precise integration method based on a step —by—step input load method, the influences of different values of time delays and feedback control gains on stability of active control system were investigated. A numerical example of response peak distribution of dynamic system with two delays under different feedback gains was proved by calculating different system response under variable time delays. The influences of different values of time delays and feedback control gains on distribution of stabile areas of system were investigated and analyzed, which indicates that the influence of time delays becomes more distinct as system feedback gains increase. The system always keeps stable state when the time delay and the feedback gain get matched, which provides evidence to design active structural vibration control algorithm under the influence of time delays.关键词
振动主动控制/精细积分方法/时滞/动力响应Key words
active vibration control/precise integration method/time delay/dynamics response分类
机械制造引用本文复制引用
张伟中,张斌,伍晓红,孙清..时滞对振动主动控制系统控制效果的影响分析[J].中国机械工程,2013,24(3):317-321,5.基金项目
国家自然科学基金资助项目(10772141) （10772141）
