On the Possibilities and Limitations of Wind Noise Testing in the Aerodynamical Wind Tunnel at Volvo Cars Volvo Car Corporation

Format:

Conference/Event

Author/Creator:

Roditcheva, Roditcheva, author.

Contributor:

Bernhardsson, Holger

Harling cEng, Pär

Lofdahl, Lennart Carl

Sebben, Simone

Conference Name:

9th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2016-06-22 : Graz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2016

Summary:

AbstractThis paper presents an experimental study of aeroacoustical sound sources generated by the turbulent flow around the side mirror of a Volvo V70. Measurements were carried out at the Volvo Cars aerodynamical wind tunnel (PVT) and at the aeroacoustical wind tunnel of Stuttgart University (FKFS). Several different measurement techniques were applied in both tunnels and the results were compared to each other. The configurations considered here were: side mirror with a cord and without the cord. The results discussed in this paper include intensity probe measurements in the flow around the side mirror, sound source localization with beamforming technique using a three-dimensional spherical array as well as standard measurements inside the car with an artificial head. This experimental study focused on understanding the differences between testing at the PVT and FKFS. It aimed to answer the question about how to overcome the difficulties in measuring small wind noise contributions in the aerodynamical wind tunnel with poor aeroacoustical treatment

Notes:

Vendor supplied data

Publisher Number:

2016-01-1807

Access Restriction:

Restricted for use by site license