DJ-02 유체의 압축성을 고려한 ER 댐퍼의 동적 모델링

성민상, 하성훈, 구오흥, 최승복, “유체의 압축성을 고려한 ER 댐퍼의 동적 모델링”, 한국소음진동공학회 논문집, 제 19권 7호, 2009.07, pp. 659-666, DOI : http://dx.doi.org/10.5050/KSNVN.2009.19.7.659

Abstract

This paper proposes a new method for dynamic modeling of electrorheological(ER) damper considering fluid compressibility. After describing configuration and operating principle of the ER damper, a quasi-static modeling of the ER damper is conducted on the basis of Bingham model of ER fluid. Subsequently, the dynamic model for describing the ER damper considering compressibility of ER fluid and gas chamber is obtained using the lumped parameter method. This method includes dynamic motions of annular duct, upper chamber, lower chamber and connecting pipe. The hysteresis behavior of the ER damper is evaluated through computer simulations and compared with experimental results. In addition, the hysteresis behavior due to the compressibility of ER fluid and gas chamber is investigated through computer simulations.

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