Effects of support stiffnesses on optimal damper placement for a planar building frame
Effects of support stiffnesses on optimal damper placement for a planar building frame
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支撑刚度对平面建筑框架最佳阻尼器放置的影响
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
S. Yoshitomi
中科院分区：
文献类型：
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作者：
I. Takewaki;S. Yoshitomi
提出了一种有效的和系统的程序，以找到最佳的阻尼器定位，以尽量减少动态顺应性的平面建筑框架。动态顺应性表示在传递函数振幅的层间漂移评估在无阻尼的基本自然频率。在附加阻尼器的阻尼系数之和受到约束的情况下，动态柔度最小。最优性准则的推导和最优阻尼器的位置是通过原来的最陡方向搜索算法确定。该算法使人们能够找到一个最佳的阻尼器定位顺序逐渐增加阻尼器的水平。支撑构件刚度的影响的响应抑制水平和最佳的阻尼器的位置也被披露的数字。版权所有© 1998年约翰威利父子有限公司。
An efficient and systematic procedure is proposed for finding the optimal damper positioning to minimize the dynamic compliance of a planar building frame. The dynamic compliance is expressed in terms of the transfer function amplitudes of the interstory drifts evaluated at the undamped fundamental natural frequency. The dynamic compliance is minimized subject to a constraint on the sum of the damping coefficients of added dampers. Optimality criteria are derived and the optimal damper positioning is determined via an original steepest direction search algorithm. This algorithm enables one to find an optimal damper positioning sequentially for gradually increasing damper levels. The influences of support-member stiffnesses on the response suppression level and on the optimal damper positioning are also disclosed numerically. Copyright © 1998 John Wiley & Sons, Ltd.