Comparative Studies between Prediction for a Building Structure with MR Damper using Linearization Technique and Experimental System Identification

선형화 기법에 기반한 MR 감쇠기가 설치된 건물의 동적모델 예측과 시스템식별 실험결과의 비교연구

The purpose of this paper is to experimentally identify the finite element (FE) model of a building structure with magnetorheological (MR) fluid damper. Using FE model based system identification (FEBSI) technique, The model of MR damper having nonlinear characteristics is expressed with equivalent linear properties such as mass, stiffness, and damping. Bingham model is used for MR damper modeling. The equivalent stiffness and damping matrices of MR damper are predicted by applying an equivalent linearization technique, and those values are compared with the experimentally obtained ones.