摘要
依据原有状态控制律对AVS结构体系进行结构控制时 ,会出现高频响应失效问题 ,为此本文提出基于单步状态预测的控制律。借助结构模态控制技术 ,经推演而得出具有普遍工程应用意义的多自由度AVS结构体系的多模态优化控制律。通过仿真分析 ,可以看出本文方法较好地解决了高频控制响应失效问题 ,在取得与瞬时最优控制相当控制效果的同时 。
In this paper,the high frequency controlled response dissipation phenomenon under earthquake/wind load deduced from Kobri′s control method is analyzed, the new control method based on single step state predicting for single freedom variable stiffness control system was presented here to cease this disadvantage effecting.Using modal control technology,the multi modal optimal control method for multi freedom structure was generally achieved.The new multi modal optimal control method has the virtue of clear physical meaning and shorter online calculating time.Computer simulation has demonstrated that the proposed method is more effective than the instantaneous optimal control method.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2000年第3期53-59,共7页
Journal of Building Structures
基金
国家自然科学基金资助重大项目!(批准号:59895410)
关键词
AVS结构体系
多模态优化控制
active variable stiffness (AVS)structural system,single step-state predicting, multi-modal optimal control
