湖南大学学报（自然科学版）2024，Vol.51Issue(7)：1-9,9.DOI:10.16339/j.cnki.hdxbzkb.2024062
基于模态阻尼指标的空间杆系结构作动器位置优化
Actuator Placement Optimization for Spatial Truss Structure Based on Modal Damping Index
摘要
Abstract
In order to obtain actuator placement optimization for the spatial truss stucture,this paper constructs the active vibration control system of spatial truss structure based on linear quadratic regulator(LQR)optimal controller theory,and maximizing the modal damping of the target control mode is proposed as the actuator placement optimization criterion.The effectiveness of the proposed method is verified by using the square pyramid space grid structure and the Levy-type cable dome structure,and the control effect and energy input are compared with those of the existing method.The comparison results show that with the increase of the number of actuators,the control effect and control energy input of the proposed method tend to stabilize faster than that of the existing method;when the number of actuators is the same or the energy input is the same,the control effect of the proposed method is better than that of the existing method.关键词
空间杆系结构/模态阻尼/主动振动控制/作动器位置优化/序列前向选择Key words
spatial truss structure/modal damping/active vibration control/actuator placement optimization/sequential forward selection分类
建筑与水利引用本文复制引用
万华平,马强,薛宇,胡鹏华,葛荟斌,罗尧治..基于模态阻尼指标的空间杆系结构作动器位置优化[J].湖南大学学报（自然科学版）,2024,51(7):1-9,9.基金项目
国家重点研发计划资助项目(2021YFF0501001),National Key Research and Development Program of China(2021YFF0501001) （2021YFF0501001）
浙江省自然科学基金(LR23E080003),Zhejiang Provincial Natural Science Foundation(LR23E080003) （LR23E080003）
浙江省重点研发计划资助项目(2021C03154),Zhejiang Provincial Key Research and Development Program(2021C03154) （2021C03154）
