Effects of non-linear modelling of a hydromount in full vehicle simulation
by Johannes Vilsecker, Werner Mack, Anton Falkner, Robert Hanfstingl
International Journal of Vehicle Noise and Vibration (IJVNV), Vol. 7, No. 2, 2011

Abstract: The effects of different levels of model complexity for a hydromount in full vehicle simulation are investigated. In particular, the performances of the classical Kelvin-Voigt model, a standard linear lumped parameter (lever) model and an amplitude-dependent non-linear physical model with respect to their predictive capabilities are studied; thereby special attention is paid to the step from a linear to a non-linear model. The evaluation is based on comparisons with test results for crossing a single obstacle, driving on a motorway and on a rough road, respectively. Assessments in the time domain as well as by statistical means show that the non-linear model is capable of capturing high-amplitude oscillations more precisely, but that the overall differences between the simulation results are not very pronounced.

Online publication date: Tue, 07-Jun-2011

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