摘要
针对自适应索杆张力结构的作动器配置问题,提出一种综合考虑节点位移和单元内力增量的结构响应灵敏度准则。首先,利用位移法基本方程求解不同作动器配置方案对应的加权灵敏度指标。随后,以结构响应加权灵敏度最大为优化目标建立优化模型,并利用遗传算法搜索作动器的最优布置方案。最后,以某Geiger型索穹顶结构为例,进行作动器的优化配置研究,从而验证了本文方法的有效性。
In order to solve the problem of actuator layout in adaptive cable-strut tensile structure,the weighted sensitivity criterion of structural response considering displacement of node and force increment of element is proposed. Firstly,the weighted sensitivity criterion corresponding to different actuator layout schemes is solved by using the basic equation of displacement method. Then,the optimization model is established by optimizing the target with the maximum weighted sensitivity of the structural response,and the genetic algorithm is used to search for the optimal layout scheme of the actuator. Finally,a Geiger cable dome structure is taken as an example to study the optimal layout of actuators,so as to verify the effectiveness of the proposed method.
作者
周婷妹
朱召泉
张沛
Zhou Tingmei;Zhu Zhaoquan;Zhang Pei(College of Civil and Transportation Engineering,Hohai University,Nanjing 210024,China;State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)
出处
《建筑科学》
CSCD
北大核心
2020年第1期13-17,共5页
Building Science
基金
中央高校基本科研业务费专项资金资助(No.2018B00914)
华南理工大学亚热带建筑科学国家重点实验室开放基金资助项目(No.2019ZB24)
江苏高校优势学科建设工程资助项目.
关键词
索杆张力结构
主动控制
灵敏度准则
作动器布置
遗传算法
cable-strut tensile structure
active control
sensitivity criterion
actuator layout
genetic algorithm
