摘要
针对上海即将兴建的某300 m高耸钢塔结构,提出了一种基于LQG控制(线性二次型高斯最优控制)的跟踪控制策略,并通过基于Davenport谱的脉动风速模拟,对其在有无施加半主动跟踪控制下进行了风振时程响应的动力分析和比较.结果表明:这种风振半主动控制算法对其脉动风作用下的加速度响应具有极其优良的控制品质和控制效果,为高耸钢塔结构脉动风作用下的舒适度设计提供了一种独特的控制装置和方法,大大降低了此类构筑物风振控制设计的成本.
As for a 300 m high-rising steel tower to be built in Shanghai, a tracking control algorithm is put forward based on LQG control theory with MR damper. A comparative study of the dynamical responses show that the proposed method can suppress significantly the fluctuating wind-induced acceleration. This paper presents a unique control device and effective control algorithm with a good control effect for high-rising steel tower wind-induced vibration control design.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第8期1057-1061,共5页
Journal of Tongji University:Natural Science
关键词
高耸钢塔结构
MR阻尼器
风振半主动控制
跟踪控制
high-rising steel tower
MR damper
semi-active wind-induced vibration control
tracking control
