ISMA, Date: 2014/09/15 - 2014/09/17, Location: Leuven

Publication date: 2014-09-15
Pages: 1781 - 1795
ISSN: 9789073802919
Publisher: KATHOLIEKE UNIV LEUVEN, DEPT WERKTUIGKUNDE

Proceedings of International Conference on Noise and Vibration Engineering

Author:

Vercammen, Stijn
Bianciardi, Fabio ; Kindt, Peter ; Desmet, Wim ; Sas, Paul ; Sas, P ; Moens, D ; Denayer, H

Keywords:

TIREDYN, SOC, Science & Technology, Technology, Engineering, Mechanical, Engineering

Abstract:

In the context of the reduction of traffic-related noise the research reported in this paper contributes to the development of low noise tyres. Two measurement techniques have been analyzed for exterior noise radiation characterization of a loaded rotating slick tyre on a rough road surface. On one hand sound pressure measurements at low spatial resolution with strategically placed microphones on a half-hemisphere around the tyre/road contact point have been performed. This technique provides a robust solution to compute the overall sound power level. On the other hand sound intensity measurements at high spatial resolution by means of a scanning intensity probe, LMS Soundbrush, have been performed. This technique allows a more detailed spatial visualization of the noise radiation and helps in getting more insight and better understanding of the acoustical phenomena.