1997-11-17

Hydraulic Powertrain Mount Characteristics and Simulation 973269

There are many ways to analytically represent a hydraulic powertrain mount. The application of the model significantly affects the type of model that should be used. An effective mass model can accurately represent hydraulic powertrain mount component level characteristics but a balanced force model is needed when the hydraulic powertrain mount is a component in a larger systems model. There are two types of hydraulic powertrain mounts that are widely used, inertia dominant and viscous dominant. Hydraulic powertrain mounts can be configured with a decoupler which can function as a small amplitude disconnect for idle isolation, affect the high frequency dynamic stiffness, and also affect the large amplitude ride frequency response.

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