基于特征结构配置的结构主动控制及仿真  

Structural Active Control Based on Eigenstructure Assignment and Its Simulations

作　　者：王国胜[1] 吕强[1] 梁冰[2] 段广仁[2] 

机构地区：[1]装甲兵工程学院控制工程系,北京100072 [2]哈尔滨工业大学控制理论与制导技术研究中心,哈尔滨150001

出　　处：《系统仿真学报》2006年第6期1605-1608,共4页Journal of System Simulation

基　　金：国家杰出青年基金(69925308)

摘　　要：考虑了具有最优控制的结构主动控制问题,目的是在系统满足闭环特性的前提下,设计状态反馈控制器使得系统性能泛函极小化。利用特征结构配置方法提供的自由度,给出了性能泛函的显示参数化表示,从而该问题转化为带有约束条件的优化问题,参与优化的变量仅为一组参量。并给出了求解该优化问题的算法,该算法直接基于结构系统矩阵,故其简单性为工程应用提供方便。地震作用下对三层剪切结构建筑模型进行仿真分析,结果表明所提结构主动控制方法的有效性。The design of structural active control with minimum control effort was investigated. The aim is to design a state feedback controller, that the closed-loop system has desired eigenvalues, and a system performance function is optimized. By utilizing design degrees of freedom offered by parametric eigenstructure assignment, a parametric expression for the system performance index was proposed. Thus the optimization problem was changed into a minimization problem with some constraints and the optimized variables are a group of parameters. An algorithm was proposed for this minimization and utilized the original system data, and thus it is simple to use in applications. A three-story shearing model under earthquake excitation was analyzed by using the proposed algorithm and the simulation results show the effect of this algorithm.

关 键 词：结构系统 主动控制 特征结构配置 地震控制 优化 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] TP271[自动化与计算机技术—控制科学与工程]