In the present work a three degree of freedom model of a cylindrical rubber element is studied and its applications to an actual engine mount systems are discussed using a simple test structure. The three degree of freedom model for the rubber mount is composed of three orthogonal springs and dampers at the elastic center of each mount.
The test body is made so simple that its mass moment of inertia is easily and accurately measured. The dynamic properties of each mount rubber are experimentally identified and those are used for predicting the model parameters of test structure. The predicted modal parameters agree well with the modal parameters obtained from the measured frequency response functions of the test structure.
