电磁惯质阻尼器在结构中位置优化以及减震分析  

Position optimization and damping analysis of electromagnetic inerter dampers in structures

作　　者：孙洪鑫[1] 邓军军 王修勇[1] 禹见达[1] SUN Hongxin;DENG Junjun;WANG Xiuyong;YU Jianda(Hunan Provincial Key Laboratory of Structural Engineering for Wind Resistant and VibrationalControl(Hunan University of Science and Technology), Xiangtan 411201, China)

机构地区：[1]结构抗风与振动控制湖南省重点实验室(湖南科技大学)

出　　处：《地震工程与工程振动》2019年第2期69-78,共10页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51778228);国家重点基础研究发展计划(973计划)(2015CB057702)~~

摘　　要：近年来,电磁惯质阻尼器(ElectromagneticInerterDamper,EMID)的力学模型在土木工程减振研究领域已取得一定的研究成果,成为了一种十分有效的惯性质量减震装置。为了更好地发挥EMID减震效果,在以层间位移角为控制目标函数和相同阻尼器参数下,采用均匀布置与权系数布置、迭代法以及基于遗传算法的阻尼器位置优化布置四种布置方案对EMID在多自由度结构中安装位置进行优化布置,随后引入四个抗震性能评价指标对十自由度结构在四种位置布置方案下的减震效果进行分析比较。最后选出一种最优的阻尼器位置布置方案,进行十自由度结构控制参数变量仿真分析,分析了EMID在相同惯质不同电磁阻尼力和相同电磁阻尼力不同惯质的条件下的减震效果,为EMID的后续研究和其工程实际应用提供一定的理论基础。In recent years, the mechanical model of Electromagnetic Inerter Damper (EMID) has achieved certain research results in the research field of civil engineering vibration damping, and has become a very effective inertial mass damping device.In order to better exert the EMID damping effect, under the interlayer displacement angle as the control objective function and the same damper parameters,uniform arrangement, weight coefficient arrangement, iterative method, and optimal arrangement of damper position based on genetic algorithm The scheme is used to optimize the installation position of EMID in a multi-DOF structure. Then, four seismic performance evaluation indexes are introduced to analyze and compare the damping effect of the ten-DOF structure under the four position arrangement schemes. Finally, an optimal arrangement scheme of dampers is selected to simulate the control variables of ten degrees of freedom structure. The damping of EMID under the different inerter of the same inerter with different electromagnetic damping force and same electromagnetic damping force is analyzed The results provide a theoretical basis for the follow-up study of EMID and its practical application.

关 键 词：电磁惯质阻尼器 位置优化布置 权系数布置 遗传算法 电磁阻尼力 惯质 

分 类 号：TU311.3[建筑科学—结构工程]