Abstract
This paper presents an analytical modeling and performance analysis of the hydraulic engine amount by using bond graph method. In the present study, the bond graph design model, having an analytical simplicity and clarity, have been developed to analyze and predict the design performance of a "sandwich type" hydraulic engine mount with a spiral inertia track and free decoupler specifically designed for an in-line gasoline engine in order to control and reduce the high amplitude low frequency engine vibration and noise in the frequency range 1 - 50 Hz in particular. To investigate the reliability of the present developed methodology the dynamic response spectra results from the bond model such as the dynamic stiffness and the loss angle are validated with the experimental data over 1-50 Hz and 1-100 Hz frequency range. The bond graph method developed in the study had shown excellent agreements with the experimentals over the cases investigated. The present study results has shown that the bond method has an excellent applicability for the analysis and prediction of hydro engine mount performance if the dynamic system can be properly modeled.