Adaptive identification of MR damper for vibration control

Takashi Terasawa, Chiharu Sakai, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalConference article

30 Citations (Scopus)

Abstract

Magnetorheological (MR) damper is a promising semi-active device for vibration control of structures. This paper presents a simple mathematical model of MR damper with a small number of model parameters, which can express its hysteresis behavior of nonlinear dynamic friction mechanism of the MR fluid. The adaptive identification algorithm is also proposed in which the uncertain model parameters and internal state variable can be estimated in an online manner. The proposed model has an advantage that by using its inverse model we can analytically determine the necessary input voltage to the MR damper so that the desirable damper force can be added to the structure in an adaptive manner. Experimental results validate the proposed adaptive modeling method and the model-based inverse control approach in vibration isolation of three story structure.

Original languageEnglish
Article numberWeC01.1
Pages (from-to)2297-2303
Number of pages7
JournalProceedings of the IEEE Conference on Decision and Control
Volume3
DOIs
Publication statusPublished - 2004 Jan 1
Event2004 43rd IEEE Conference on Decision and Control (CDC) - Nassau, Bahamas
Duration: 2004 Dec 142004 Dec 17

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modelling and Simulation
  • Control and Optimization

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