调液阻尼器对结构扭转耦联振动控制的优化设计  

Optimal design of liquid dampers for structural torsion coupled vibration

作　　者：李宏男[1] 霍林生[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《计算力学学报》2005年第2期129-134,共6页Chinese Journal of Computational Mechanics

基　　金：国家杰出青年基金(50025823);辽宁省教育厅科研项目(A类20201056);辽宁省自然科学基金重大项目(2001101006)资助项目.

摘　　要：提出了利用调液柱型阻尼器(TunedLiquidColumnDampers,简称TLCD)和环形调液阻尼器(CircularTunedLiquidColumnDampers,简称CTLCD)来控制偏心结构在多维地震作用下扭转耦联振动的方法。采用遗传算法,在双向地震作用下,对调液阻尼器的相关参数进行优化。选取了两种目标函数,一种只考虑最大的楼层反应,另一种考虑结构所有自由度的反应。用一个12层的偏心结构作为算例,进行优化计算,结果表明,采用第二种目标函数得到的阻尼器的参数,能有效降低结构的平动反应和扭转反应。In this paper, Tuned Liquid Column Dampers (TLCD) and Circular Tuned Liquid Column Dampers (CTLCD) are used to control the torsion coupled vibration of structures subjected to multidimensional earthquake excitation. The optimal parameters of the liquid dampers are designed for the structures subjected to bi-directional seismic excitations based on the Genetic Algorithms (GAs). Two kinds of target functions are used in this paper. The first one concerns the maximum structural floor response and the second deals with the responses of all structural degrees. A 12-storey eccentric structure mode is selected as an example. The results show that the optimal parameters with the second target function can effectively control the translational responses in x and y directions as well as torsional response.

关 键 词：调液柱型阻尼器 环形调液阻尼器 遗传算法 偏心结构 扭转耦联振动 

分 类 号：TU313[建筑科学—结构工程]