Proceedings Vol. 15 (2009)
ENGINEERING MECHANICS 2009
May 11 – 14, 2009, Svratka, Czech Republic
Copyright © 2009 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 1533 - 1542, full text
The application to improve vehicle dynamics requires an instant change of stiffness and damping coefficient. In the paper, a method is shown which enables to create an extended quarter car model which is enough trustworthy and sufficient for the vertical dynamics analysis. The developed model is compared to an extended full car model in with four persons and engine. The silent blocks and the tire model are designed be means of a parallel combination of Maxwell element and a linear spring. The frequency analysis of the car model has been split in to a three frequency ranges: low frequency of the excitation, medium and high. In this paper is shown that the performance index in first range depends mostly on stiffness, in the second range on the damper properties.
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