摘要
拉索结构以其结构合理、外形美观在现代建筑结构中得到越来越多的应用,但特定的荷载条件往往会造成拉索振幅过大,从而严重影响了结构的安全。本文采用的轴向主动LQR控制达到了抑制拉索振动的目的。并在此基础上针对柔性张紧拉索振动控制系统进行了参数分析,着重讨论了控制过程中加权参数带来的影响,同时提出了适用于工程应用的最优主动控制力判别准则和实现该准则的迭代计算方法,有益于提高控制器的设计效率。
Cable - stayed structures are rational and beautiful. But cables are susceptible to vibration with large amplitude caused by special load. Then Structures will become more unsafe. Control of cables vibration is realized through linear quadratic optimal control strategy. Parametric analysis of vibration control system for flexible taut cables is conducted. The influences on vibration control are discussed due to the changes of weighted parameters. Discrimination criterion of optimal active control force and iterative computing method are given for improving design efficiency of the controller.
出处
《河北工程大学学报（自然科学版）》
CAS
2009年第2期7-12,共6页
Journal of Hebei University of Engineering:Natural Science Edition
基金
上海建筑设计研究院青年科研基金项目(03108K011)
关键词
拉索振动
最优主动控制
LQR控制
判别准则
迭代计算方法
cables vibration
optimal active control
LQR control strategy
discrimination criterion
iterative computing method
