Title: Analysis of interior booming noise caused by tyre and powertrain-suspension system vibration

Authors: Y. Kobiki, A. Kinoshita, H. Yamada

Addresses: Research Engineer, Central Engineering Laboratories, Nissan Motor Co. Ltd., Yokosuka-shi, Japan. ' Research Engineer, Central Engineering Laboratories, Nissan Motor Co. Ltd., Yokosuka-shi, Japan. ' Staff Engineer, Tyre Testing Department, Bridgestone Corp., Tokyo, Japan

Abstract: The mechanism generating booming noise was investigated through experimentation and numerical analysis. By applying such new techniques as rotating torsional excitation and speckle interferometry, it has become possible to analyse the vibration mode of a tyre under actual rolling conditions. Through the use of these techniques, it was found that the dominant factor producing booming noise was the coupled vibration between the tyres and the powertrain-suspension system. Booming noise can be effectively reduced by tuning the vibration characteristics of these components.

Keywords: booming noise; dynamometer; natural frequency; powertrain-suspension system; rotation; speckle interferometry; torsion; tyre resonance; powertrain; vehicle suspension; interior noise; vehicle vibration; vehicle design.

DOI: 10.1504/IJVD.1990.061576

International Journal of Vehicle Design, 1990 Vol.11 No.3, pp.303 - 313

Published online: 26 May 2014 *

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