2011
EMSS 2011 Proceeding
Eigenfrequency Based Sensitivity Analysis Of Vehicle Drivetrain Oscillations
Authors: Oliver Manuel Krieg, Jens Neumann, Bernhard Hoess, Heinz Ulbrich
Abstract
For vehicle drivetrain design, there is a serious conflict of objectives between the oscillation phenomena shuffle and cyclic irregularities. The purpose of this paper is to illustrate a methodology to analyse and visualise the sensitivities of drivetrain eigenfrequencies in order to solve this conflict of objectives for the drivetrain design process for selected vehicle drivetrain concepts. Starting with a complex and detailed non-linear model, different simplifications are performed to finally visualise the sensitivities of relevant eigenfrequencies. This provides a profound understanding of the dynamic behaviour of the vehicle and enables engineers to identify parameter combinations that solve or palliate this conflict of objectives. Two exemplary measures are derived and the palliation effect is examined with the complex simulation models.
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