Multimode Damping of a Stay Cable Attached with a Negative Stiffness Device and a Linaear Hysteretic Damper

被引：0
|
作者：
Sun L. [1 ,2 ]
Sun J. [1 ]
Di F. [2 ]
Zou Y. [3 ]
Wang M. [4 ]
Chen L. [1 ]
机构：
[1] Department of Bridge Engineering, Tongji University, Shanghai
[2] State Key Laboratory of Disaster Reduction in Civil Engineering (Tongji University), Shanghai
[3] Liuzhou OVM Machinery Co, Ltd, Liuzhou
[4] Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education(Beijing University of Technology), Beijing
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2022年 / 49卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Inertial damper; Linear hysteretic damping; Multimode damping; Negative stiffness; Stay cable vibration;
D O I：
10.16339/j.cnki.hdxbzkb.2022044
中图分类号：
学科分类号：
摘要：
Multimode damping of a stay cable attached with a negative stiffness device (NSD) and a linear hysteretic damper was studied. The frequency equation of a cable under transverse control forces at two locations is used for damping analyses by considering arbitrary NSD and damper locations. The effects of NSD and damper locations, damper parameters and negative stiffness values on multimode damping of stay cable are examined. It can be found that the multimode cable damping values can be significantly enhanced comparing with the single linear hysteretic damper. The closer the installation locations, the higher the damping level. Furthermore, multimode damping effect of the combinations is verified by using a long stay cable installed with a viscous shear damper on the Sutong Bridge, together with an inertial damper. The feasibility of the NSD is carefully discussed. The results show that the NSD is more helpful to enhance the multimode damping comparing with the inertial damper. © 2022, Editorial Department of Journal of Hunan University. All right reserved.
引用
收藏
页码：9 / 16
页数：7
相关论文
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