한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)
- 한국전산구조공학회 2005년도 춘계 학술발표회 논문집
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- Pages.497-504
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- 2005
스마트 수동 감쇠 시스템을 이용한 사장 케이블의 진동 제어
Vibration Control of Stay Cable Using Smart Passive Damping System
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Jung Hyung-Jo
;
- Cho Sang-Won (BLSWTL, University of Western Ontario) ;
- Jang Ji-Eun ;
- Lee In-Won
- 발행 : 2005.04.01
초록
Stay cables, such as are used in cable-stayed bridges, are prone to vibration due to their low inherent damping characteristics. Several methods have been proposed and implemented to mitigate this problem, though each has its limitations. Recently some studies have shown that active and semiactive control system using MR (Magnetorheological) damper can potentially achieve both higher performance levels than passive control system and adaptability with few of the detractions. However, a control system including a power supply, controller, and sensors is required to maximize the performance of the MR damper and this complicated control system is not effective to most of large civil structures. This paper proposes a smart passive damping system using MR dampers by introducing electromagnetic induction (EMI) system as an external power source to MR damper and verified the performance of smart passive damping system for mitigating the vibration of stay cables. The performances of smart passive damping system are compared with those of linear viscous damper and passive-mode MR damper.
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