Capacity and Placement of MR Damper for Vibration Control of MDOF System

다자유도 시스템의 진동제어를 위한 MR감소기 용량 및 위치 선정

  • 이상현 (서울대학교 공학연구소) ;
  • 민경원 (단국대학교 건축대학 건축공학과) ;
  • 이루지 (단국대학교 건축대학 건축공학과) ;
  • 김대곤 (서울산업대학교 구조공학과)
  • Published : 2004.10.01

Abstract

In this paper, peliminary design procedure of magnetorheological (MR) dampers is developed for controlling the building response induced by seismic excitation. Hysteretic biviscous model which is simple and can describe the hysteretic characteristics of MR damper is used for parametric studies. The capacity of MR damper is determined as a portion of not the building weight but the lateral restoring force. A method is proposed for the optimal placement and number of MR dampers, and its effectiveness is verified by comparing it with the simplified search algorithm. Numerical results indicate that the capacity, number and the placement can be reasonably determined using the proposed design procedure.

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