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ER/MR智能阻尼器对空间网壳结构地震反应的半主动控制
Semi- active control for earthquake responses of reticulated shells with ER/MR smart dampers
【摘要】 本文提出了ER/MR智能阻尼器对空间网壳结构地震反应半主动控制的设计计算方法。文中,在推导了ER/MR智能阻尼器杆件有限单元模型的基础上.建立了设置ER/MR智能杆件的网壳结构地震反应的运动方程,应用本文提出的局域半主动控制策略,我们得到了ER/MR智能阻尼器对空间网壳结构地震反应半主动控制的计算方法。工程实例的计算结果表明:ER/MR智能杆件是一种不会失稳的控制装置,在结构上合理布置ER/MR智能杆件和合理选取 ER/MR智能杆件的参数可获得较好的减震效果.
【Abstract】 In this paper, a semi-active control design method of ER/MR smart damper for earthquake responses of reticulated shells is presented. By deriving finite element model of the element with ER/MR damper, the vibration equations of reticulated shells are established. Using part semi-active control strategy proposed by the paper, the calculating method of semi-active control for earthquake responses of reticulated shells is obtained. The calculating results indicate that:(1)ER/MR smart damper is a kind of control device which remains always stable.(2) the reasonable arrangement of smart dampers on structure and the correct selection of parameters of smart dampers are very impor- tant for improving control performance.
【Key words】 ER/MR smart damper; reticulated shell structure; earthquake response; semi- active control;
- 【文献出处】 地震工程与工程振动 ,Earthquake Engineering and Engineering Vibration , 编辑部邮箱 ,2001年S1期
- 【分类号】TU399
- 【被引频次】82
- 【下载频次】304