Modeling tyre/road noise in FE simulations for pass-by noise predictions
Paper in proceedings, 2018

Fulfilling the current pass-by noise regulation is a challenge for the OEMs and their suppliers. And it's not going to improve over time. Any possible ways to reduce the exterior noise can happen to be beneficial. In this context, simulations are natural alternatives to costly and long measurement campaigns to quantify the benefits of acoustic treatments. Nevertheless, modelling procedures to tackle this type of issues are far from being well-established, even though the literature is rich with studies describing the complex processes involved in the tyre/road contact. Very often, when it comes to full-vehicle modelling, tyre sources are replaced by simple sources as monopoles, thus introducing a physical simplification. This paper is concerned with the tyre noise modelling in FE simulation in the perspective to assess the pass-by noise of a car. For that, the sound radiated by validated velocity maps from a tyre/road noise simulation model at different speeds and for different loads is compared with the noise radiated by monopoles in the close vicinity of the tyres. The aim is to define the limitation related to the use of the monopoles in order to correctly capture the relevant physics in the simulation.

Tyre/road noise

velocity maps

monopoles

passby noise

Author

Thibault Lafont

Autonemum

Rainer Stelzer

Autonemum

Claudio Bertolini

Autonemum

Roberto D'amico

Autonemum

Wolfgang Kropp

Chalmers, Architecture and Civil Engineering, Applied Acoustics

INTER-NOISE and NOISE-CON Congress and Conference Proceeding

0736-2935; (ISSN)

Vol. 257 298-309

NOVEM 2018
Ibiza, Spain,

Areas of Advance

Transport

Subject Categories

Other Engineering and Technologies

Vehicle Engineering

More information

Created

1/17/2019