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정의봉(W.D.Jeong),김봉준(B.J.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_2
Hydraulic engine mount is usually used for improving the noise and vibration quality. For the ideal case that the mass of orifice fluid and viscous damping coefficient are independent each other, the optimal mass and the viscous damping coefficient can be determined by the theory of dynamic absorber. In the actual case, however, the mass and the viscous damping are strongly coupled and are functions of the shape of orifice and chamber.<br/> In this paper, the governing equation of hydraulic engine mount(HEM) is derived. Damping forces in the orifice are also modeled as the function of the orifice length, orifice area and chamber area. Programs for the optimal shape design of orifice are developed. These programs are verified by the vibration testing, and applied to a quarter vehicle model.<br/>