[1]鲁正,张泽楠,廖元.颗粒阻尼器随机控制研究[J].地震工程与工程振动,2018,(04):016-20.[doi:10.13197/j.eeev.2018.04.16.luz.003]
 LU Zheng,ZHANG Zenan,LIAO Yuan.Research on stochastic response control of particle damping system[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):016-20.[doi:10.13197/j.eeev.2018.04.16.luz.003]
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颗粒阻尼器随机控制研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
016-20
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Research on stochastic response control of particle damping system
作者:
鲁正12 张泽楠2 廖元2
1. 同济大学 土木工程防灾国家重点实验室, 上海 200092;
2. 同济大学 结构工程与防灾研究所, 上海 200092
Author(s):
LU Zheng12 ZHANG Zenan2 LIAO Yuan2
1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;
2. Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China
关键词:
被动控制颗粒阻尼器随机分析等效线性化
Keywords:
passive controlparticle damperstochastic analysisequivalent linearization
分类号:
TU4
DOI:
10.13197/j.eeev.2018.04.16.luz.003
摘要:
颗粒阻尼器是一种减振性能良好的被动控制装置。由于其呈现较强的非线性特征,本文基于将多颗粒等效为单颗粒的原则,采用等效线性化的方法通过四阶龙格库塔迭代计算,获得颗粒阻尼结构体系在随机振动下的均方根响应,继而对其设计参数进行分析。研究结果表明对于给定的颗粒阻尼结构体系,存在最优的自由行程d使结构加速度均方根最小,同时质量比μ的最优取值与自由行程d紧密相关。
Abstract:
The particle damper (PD) is an efficient passive control strategy for earthquake induced vibration control of structures. Considering the nonlinear restoring force behavior of the particle damper, the stochastic response of a particle damping structural system based on an equivalent single particle unit model is first derived using a nonstationary random process and time-dependent equivalent linearization with fourth order Runge-Kutta method. A parametric study is then performed to evaluate the potential influences of earthquake excitations properties. For a given particle damping structural system and excitation, it is observed that an optimal gap clearance d exists for minimizing the root mean square absolute acceleration response of structures. Furthermore the optimal mass ratioμ, which is not always effective as its increasing, is closely related to the gap clearance d.

参考文献/References:

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[4] Lu Z, Masri S F, Lu X. Parametric studies of the performance of particle dampers under harmonic excitation[J]. Structural Control & Health Monitoring, 2015, 18(1):79-98.
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备注/Memo

备注/Memo:
收稿日期:2018-03-17;改回日期:2018-05-19。
基金项目:国家自然科学基金项目(51478361)
作者简介:鲁正(1982-),男,教授,博士,主要从事振动控制和结构抗震研究.E-mail:luzheng111@tongji.edu.cn
更新日期/Last Update: 1900-01-01