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자료유형
학술저널
저자정보
이용훈 (단국대학교) 이상현 (단국대학교)
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第32卷 第12號 (通卷 第338號)
발행연도
2016.12
수록면
25 - 32 (8page)

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Active Variable Stiffness(AVS) System, which has on-off elements whose connection state to the main structure can be modulated by control signal, is one of the methods for controlling dynamic responses induced by earthquake or wind loads. AVS system, however, an impulse is transmitted to the structure when the connection state of the on-off elements gets changed. In the previous research, a function composed of displacement and velocity was presented to solve this problem, but the frequent changes of the connection state were observed and it was difficult for the linkage of the on-off elements to be mechanically implemented since the locking signal was given even when the displacements of the main structure and the on-off elements were different. In this study, the effects of the sudden linkage and separation of the on-off element were investigated, and a control algorithm which lets on-off elements linked when the displacement is close to zero and separated when accumulated static energy of the on-off elements starts to decrease was proposed. Numerical analysis was carried out to verify the availability of the proposed algorithm and the results indicated that the control performance could be maintained as the level of the previous study and the number of the connection state change was greatly reduced. Furthermore, unnecessary response magnification did not occur and the mechanical implementation of the proposed algorithm is possible because the linkage of the on-off elements was conducted only when the displacement was close to zero.

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Abstract
1. 서론
2. AVS 시스템 특성 고찰
3. AVS 시스템 운영 알고리즘 제안
4. 결론
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