Analysis of the Amplitude and Frequency Dependency of the Top Mount Damper Assembly with Focus on Small Excitations

Autoren

David Benz, M.Sc., Prof. Dr. Peter E. Pfeffer, Hochschule für Angewandte Wissenschaften München, München;
Assoc. Prof. Dipl.-Ing. Dr. techn. Johannes Edelmann, Ao. Univ. Prof. Dipl.-Ing. Dr. techn. Manfred Plöchl, TU Wien, Wien

Zusammenfassung

The tuning of the top mount and damper are major factors to achieve a desired ride comfort. To analyze the dynamic behavior of a specific top mount–damper assembly a new method for evaluating the amplitude and frequency dependent damping behavior via the so-called relative damper work will be presented. First the dynamic behavior of the top mount is shown, using a test scenario based on a discrete frequency sweep with different displacement amplitudes in the small signal range. Second, the new method based on equal test scenarios will be presented, calculating the relative damper work. Due to the dependency between damping behavior and ride comfort, an
analysis of the amplitude and frequency dependent ride comfort is made. The analysis outcomes of relative damper work of the top mount damper assembly are then compared to the findings from damper analysis.

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