A Dynamic Condensation for Tall Buildings with Active Tuned Mass Damper

능동 동조질량감쇠의 고층빌딩 해석을 위한 동적압축법

  • Jung, Yang-Ki ;
  • Qu, Zu Qing (University of Arkanasas, Civil Engineering)
  • 정양기 (교통안전공단 자동차성능시험연구소) ;
  • Published : 2006.04.30


It is impractical to install sensors on every floor of a tall building to measure the full state vector because of the large number of degrees of freedom. This makes it necessary to introduce reduced order control. A kind of system reduction scheme (dynamic condensation method) is proposed in this paper. This method is iterative and Guyan condensation is looked upon as an initial approximation of the iteration. Since the reduced order system is updated repeatedly until a desired one is obtained, the accuracy of the reduced order system resulting from the proposed method is much higher than that obtained from the Guyan condensation method. An eigenvalue shilling technique is applied to accelerate the convergence of Iteration. Two schemes to establish the reduced order system by using the proposed method are also presented and discussed in this paper. The results for a tail building with active tuned mass damper show that the proposed method is efficient for the reduced order modelling and the accuracy is very close to exact only after two iterations.


active control;dynamic condensation;tuned mass damper


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