NUMERICAL ANALYSIS ON SEISMIC RESPONSE OF CONTROL SYSTEMS WITH TIME DELAYS

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (6) : 181-184.

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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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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.

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precise integration method / time delay / active control / control gain.

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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