弹簧摆碰撞调谐质量阻尼器减震性能优化研究  

STUDY ON OPTIMIZATION OF PARAMETERS OF SPRING PENDULUM POUNDING TUNED MASS DAMPER

作　　者：王奇[1] 李宏男[1,2] 张鹏 WANG Qi;LI Hong-nan;ZHANG Peng(School of Civil Engineering,Shenyang Jianzhu University,Shenyang,Liaoning 110168,China;School of Civil Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;College of Transportation Engineering,Dalian Maritime University,Dalian,Liaoning 116023,China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]大连理工大学土木工程学院,辽宁大连116024 [3]大连海事大学交通运输装备与海洋工程学院,辽宁大连116023

出　　处：《工程力学》2023年第8期181-188,共8页Engineering Mechanics

基　　金：国家自然科学基金重点项目(51738007)。

摘　　要：为了提高弹簧摆碰撞调谐质量阻尼器(spring pendulum pounding tuned mass damper,SPPTMD)的减震性能,采用粒子群算法(particle swarm optimization,PSO)对其关键参数进行了优化。推导了SPPTMD减震系统的运动方程,同时建立了系统的仿真分析模型。选取阻尼器频率比、内共振系数和碰撞间隙为优化变量,以结构峰值响应最小为优化目标,编制了SPPTMD优化程序。对比了优化前后SPPTMD在不同场地上12条地震动作用下的减震效果。研究结果表明:SPPTMD的最优参数与场地类别相关;优化后阻尼器的减震性能有明显提高,其中,Ⅳ类场地优化效果最好。In order to improve the shock-absorbing performance of a spring pendulum pounding tuned mass damper(SPPTMD),the parameters of the damper are optimized using particle swarm optimization(PSO).First,the mathematical model of the SPPTMD is derived,and a simulation analysis model of the system is established.Secondly,the SPPTMD optimization program is developed with the minimum structural peak response as the optimization objective by selecting the damper frequency ratio,internal resonance coefficient and collision gap as the optimization variables.Finally,the shock-absorbing effect of SPPTMD under 12 seismic waves on different sites before and after optimization is compared.The research results show that the optimal parameters of SPPTMD vary depending on the site condition where the controlled structure is located.After optimization,the shock-absorbing performance of the dampers has been significantly improved.Among them,the best optimization effect is achieved for the IV site.

关 键 词：结构振动控制 弹簧摆碰撞调谐质量阻尼器 粒子群算法 非线性阻尼器 参数优化 

分 类 号：TU352[建筑科学—结构工程]