Investigation of locking force for stay cable vibration control using magnetorheological fluid damper

被引：15
|
作者：
Liu, Min [3 ]
Sethi, Vineet [2 ]
Song, Gangbing [1 ]
Li, Hui [3 ]
机构：
[1] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA
[2] Univ Houston, Coll Technol, Dept Engn Technol, Houston, TX 77024 USA
[3] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
来源：
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 2008年 / 130卷 / 05期
基金：
美国国家科学基金会;
关键词：
cable-stayed bridge; stay cable; MR damper; vibration control; locking force;
D O I：
10.1115/1.2948390
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The locking force of stay cable vibration control using a magnetorheological (MR) fluid damper is investigated in this paper. For a single mode vibration of a stay cable equipped with a MR damper, the locking force formula is derived and the important factors that affect the locking force are analyzed. The experimental investigations of the locking force of the stay cable vibration control are carried out on a cable-stayed bridge model equipped with a MR damper to verify the computational locking force. For the multimode vibration of the stay cable, the modal shapes of the stay cable vibration are estimated by utilizing a pole placement observer using the acceleration values at selected locations of the stay cable, and the locking forces of the stay cable in multimode vibration are numerically obtained. In all experimental cases, the locking forces based on the analytical and numerical formulas approximately match the experimental results.
引用
收藏
页数：6
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