The contribution of air-pumping to tyre/road noise
Paper in proceedings, 2013

It is generally accepted that there are at least two tyre/road noise generation mechanisms commonly referred to as tyre vibrations and air-pumping. While the modelling of tyre vibrations is rather mature, the modelling of air-pumping is still on a basic stage and unsatisfactory in many aspects. Applying the fact that tyre vibrations and air-pumping have different vehicle speed dependency allows for identifying the contribution from each mechanism in field measurements of tyre/road noise. This paper presents an analysis of controlled pass-by measurements and simulations with the tyre/road simulation model at Chalmers. Results show that air-pumping is a major contributor to tyre/road noise. The question arises which physical mechanisms are behind the air-pumping noise observed in measurements and simulations. The analysis indicates that tyre vibrations in the contact may lead to air-pumping noise. This suggestion deviates from generation mechanisms usually assumed in the air-pumping context.

air-pumping

tyre/road noise

Author

Julia Winroth

Chalmers, Civil and Environmental Engineering, Applied Acoustics, Vibroacoustics

Carsten Hoever

Chalmers, Civil and Environmental Engineering, Applied Acoustics, Vibroacoustics

Wolfgang Kropp

Chalmers, Civil and Environmental Engineering, Applied Acoustics, Vibroacoustics

Thomas Beckenbauer

Proceedings of AIA-DAGA 2013

1594-1597

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Building Futures (2010-2018)

Subject Categories

Transport Systems and Logistics

Other Environmental Engineering

ISBN

978-3-939296-05-8

More information

Latest update

11/21/2018