MR 감쇠기가 설치된 소형건물의 점성 평가

서지정보

· 발행기관 : 단국대학교 리모델링연구소
· 수록지 정보 : 리모델링 연구소 논문집 / 3권 / 1호
· 저자명 : 민경원, 이상현, 이명규, 박은천

영어초록

The purpose of this paper is to evaluate the performance of a MR fluid damper for seismic vibration control of a structure in terms of equivalent linear damping or stiffness based on linearization technique and to experimentally verify the results from linearization technique by comparing them to those from system identification of a building structure with MR damper. First, among the various models for MR damper, the equivalent stiffness and damping are estimated for Bingham model which is mathematically simple and for Bouc-Wen model which can describe any kind of hysteretic behavior. Second, transfer function of a building structure with MR damper is obtained by performing shaking table tests and the stiffness and damping matrices of the structure are constructed using the modal information obtained by the transfer function. It is observed that the damping mathematically estimated using linearization technique for Bingham model matches well with the damping coefficient experimentally obtained by system identification.

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