Optimization of LQR method for the active control of seismically excited structures

被引：10

作者：

Moghaddasie, Behrang ^{[1
]}

Jalaeefar, Ali ^{[2
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Civil Engn, POB 91775-1111, Mashhad, Iran

[2] Islamic Azad Univ, North Tehran Branch, Dept Civil Engn, Tehran, Iran

来源：

SMART STRUCTURES AND SYSTEMS | 2019年 / 23卷 / 03期

关键词：

active control; LQR method; weighting matrices; seismic excitation; modal space; INSTANTANEOUS OPTIMAL-CONTROL; FULL-SCALE IMPLEMENTATION; WAVELET NEURAL-NETWORK; TIME-DELAY CONTROL; BUILDING STRUCTURES; SEMIACTIVE CONTROL; CONTROL-SYSTEM; CONTROL ALGORITHM; VIBRATION CONTROL; RICCATI EQUATION;

D O I：

10.12989/sss.2019.23.3.243

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper introduces an appropriate technique to estimate the weighting matrices used in the linear quadratic regulator (LQR) method for active structural control. For this purpose, a parameter is defined to regulate the relationship between the structural energy and control force. The optimum value of the regulating parameter, is determined for single degree of freedom (SDOF) systems under seismic excitations. In addition, the suggested technique is generalized for multiple degrees of freedom (MDOF) active control systems. Numerical examples demonstrate the robustness of the proposed method for controlled buildings under a wide range of seismic excitations.

引用

页码：243 / 261

页数：19

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