力学与实践 ›› 2020, Vol. 42 ›› Issue (2): 177-183.DOI: 10.6052/1000-0879-19-306

• 应用研究 • 上一篇    下一篇

基于遗传算法的不规则高层结构新型电磁惯性质量阻尼器 优化布置研究1)

李志军*, 雷海涛*, 袁渊*, 汤若辰*, 王社良†,2)   

  1. *西安工业大学建筑工程学院,西安 710032;
    西安建筑科技大学土木工程学院,西安 710055
  • 收稿日期:2019-08-19 发布日期:2020-05-11
  • 通讯作者: 2) 李志军,教授。主要从事结构振动控制及健康监测研究。 E-mail:lzjsjh@aliyun.com
  • 基金资助:
    1) 国家自然科学(51678480),陕西省重点研发计划(2019GY-079),陕西省教育厅专项科研计划(11JK0543)和西安工业大学校长重点(XAGDXJJ0919) 资助项目

OPTIMAL DISTRIBUTION OF EIMD FOR IRREGULAR HIGH-RISE BUILDING STRUCTURE VIA GENETIC ALGORITHM 1)

LI Zhijun*, LEI Haitao*, YUAN Yuan*, TANG Ruochen*, WANG Sheliang†,2)   

  1. *School of Civil & Architecture Engineering, Xi'an Technological University, Xi'an 710032, China;
    College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • Received:2019-08-19 Published:2020-05-11

摘要: 为了解决应用新型电磁惯性质量阻尼器于偏心高层结构控震工程中的优化布置问题,提出一种基于遗传算法的优化配置策略。首先建立地震动作用下新型电磁惯性质量阻尼器(electromagnetic inertial mass dampers,EIMD)偏心高层结构的动力学方程,其次选取合适的适应度函数并基于遗传算法得到EIMD最优配置数量及集成位置信息,最后提出一种可行的半主动控制策略对优化的结构进行控震分析。以一个24层实体不规则高层结构为例,仿真分析结果表明优化配置后的EIMD 对结构的控震效果明显优于随机布置。

关键词: 遗传算法, 电磁惯性质量阻尼器, 偏心高层结构, 半主动控制

Abstract: A new method for optimal distribution of electromagnetic inertial mass dampers (EIMDs) based on the genetic algorithm (GA) is proposed in this paper, to reduce the amplitudes of vibration responses of an eccentric high-rise building structure with EIMDs subjected to the earthquake wave. According to the mechanical mechanism of the EIMD, the dynamic equation of motion of the eccentric structural system with EIMDs is derived and some parameters of the structure are determined correspondingly. Moreover, the optimal quantities and the installation location of the EIMDs are determined by using the proposed GA with the feasible fitness function. Finally, a feasible semi-active control strategy is adopted for the eccentric high-rise building structure with EIMDs. A full-size eccentric high-rise building structure with 24 stories is used as an example to demonstrate the effectiveness of the proposed method. Simulation results show that the control performance of the proposed optimal strategy is superior to the one of the stochastic distribution strategy.

Key words: turtle shell, mechanical properties, protection structure, bio-inspired design

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