With the use of replica road surfaces on drums, real time analysis facilities, and spectral arithmetic capability, it is possible to analyse the relative importance of the different directions of excitation of each body suspension point in contributing to internal vehicle tyre/road noise. This is a useful aid in the reduction of such noise. With regard to tyre properties, in the case of two or more tyres running on a vehicle, an average of the beat cycles should be obtained to get representative noise spectral information. Concerning the pair of air resonances in tyres, the frequencies may be calculated simply from published data and coincidence with other resonances should be avoided.
Improvement of road excited internal vehicle noise by analysis of suspension transmission paths using replica road surfaces
Minderung der durch die Strasse verursachten Kraftfahrzeuginnengeraeusche durch Analyse der Antriebs- und Federungswege unter Anwendung eines Simulators der Strassenoberflaeche
16th ISATA, 16th Int. Symp. on Automotive Technol. and Automation ; 2 , May ; 567-587
1987
21 Seiten, 10 Bilder, 1 Tabelle, 5 Quellen
Conference paper
English
Automotive engineering | 1987
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