含时滞振动主动控制系统地震响应的数值分析

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (6) : 181-184.

论文

含时滞振动主动控制系统地震响应的数值分析

朱宏1 张斌2 孙清3

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NUMERICAL ANALYSIS ON SEISMIC RESPONSE OF CONTROL SYSTEMS WITH TIME DELAYS

Zhu Hong1 Zhang Bin2 Sun Qing1

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摘要

本文采用精细积分方法计算了时滞受控系统在地震作用下的动力响应，得到在不同反馈增益下随时滞量变化的系统地震响应峰值分布。分析了在小时滞范围内随时滞量变化和反馈增益在不同的取值下对系统响应的影响，结果表明时滞对系统控制效果的影响程度随反馈增益的增大而增大，当时滞较大时，采用较小的控制增益控制效果较好，当时滞较小时，采用较大的控制增益可以获得更好的控制效果。本文结果可用于设计考虑时滞影响的结构振动主动控制算法。

Abstract

A kind of dynamic equation of control system with double time delays is solved by a modified precise integration method. The accuracy of this method is proved by numerical examples which calculate time histories of system response and distribution of response peak of system with variational time delays when feedback control gains take different values. Influence of different values of time delays and feedback control gains on distribution of stabile areas of system is investigated. The influence of different feedback gains and variational time delays on system response is analysed, which shows that the influence of time delays gets more distinct as feedback gains increase. The result is of certain guiding significance for designing active structural vibration control algorithm considering influence of time delay.

导出引用

朱宏张斌孙清. 含时滞振动主动控制系统地震响应的数值分析[J]. 振动与冲击, 2013, 32(6): 181-184

Zhu Hong Zhang Bin Sun Qing . NUMERICAL ANALYSIS ON SEISMIC RESPONSE OF CONTROL SYSTEMS WITH TIME DELAYS[J]. Journal of Vibration and Shock, 2013, 32(6): 181-184