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Nonlinear B.B.A. for Predicting Vibration of Vehicle with Hydraulic Engine Mount
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English
Abstract
In the automotive industry, hydraulic engine mounts have been available for reduction of engine shake, idle shake and noise transmition. The hydraulic mounts have high damping for large motion induced by engine shake and low dynamic stiffness for low amplitude by idle shake or noise transmition. These excellent properties can not be achieved by conventional rubber-mount. However the optimum tuning of the hydraulic mounts is not easy because of the non-linear properties which depend on the frequency and amplitude.
To solve these problems, we developed the system analysis which combines the numerical simulation of the hydraulic mount and the modal analysis for the vehicle.
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Citation
Ushijima, T. and Dan, T., "Nonlinear B.B.A. for Predicting Vibration of Vehicle with Hydraulic Engine Mount," SAE Technical Paper 860550, 1986, https://doi.org/10.4271/860550.Also In
References
- Tomlinson G. R. An Analysis of the Distortion Effects of Coulomb Damping on the Vector Plots of Lightly Damped System J. of Sound and Vibration 71 1980
- Flower Wallance C. Understanding Hydraulic Mounts for Improved Vehicle Noise, Vibration and Ride Qualities SAE Paper 850975 1985
- Bernuchon Marc A New Generation of Engine Mounts SAE Paper 840259 1984
- nagano Fujio et al Errors of an Indicator Due to a Connecting Passage 213 1964