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Use of a small low-noise wind tunnel for determining the aeroacoustic noise produced by components on a vehicle

Use of a small low-noise wind tunnel for determining the aeroacoustic noise produced by components on a vehicle
Use of a small low-noise wind tunnel for determining the aeroacoustic noise produced by components on a vehicle
This paper describes an experimental method used to determine the aeroacoustic noise produced by a 'roof rack' placed on the roof of a vehicle. Testing was done on a vehicle roof positioned at the outlet jet of a small low-noise wind tunnel. A 'simulated vehicle cabin' was constructed beneath the vehicle roof that had similar absorption characteristics to an actual vehicle cabin. Sound pressure level measurements were made within the simulated vehicle cabin. The sound pressure level measurements were consistent with measurements made within the cabin of an actual vehicle in a large anechoic wind tunnel. The method could also be used to determine the in-cabin aeroacoustic noise produced by other vehicle accessories.
0954-4070
1539-1545
Kingan, M.J.
2d2daafa-d6d7-41aa-a9fc-2307259ac9f0
Pearse, J.R.
576fdd3c-b839-4d91-88e7-87c452a476f6
Hubbard, P.D.
a4f2d7cf-6ddd-44f6-be17-a1d534a75ec3
Kingan, M.J.
2d2daafa-d6d7-41aa-a9fc-2307259ac9f0
Pearse, J.R.
576fdd3c-b839-4d91-88e7-87c452a476f6
Hubbard, P.D.
a4f2d7cf-6ddd-44f6-be17-a1d534a75ec3

Kingan, M.J., Pearse, J.R. and Hubbard, P.D. (2006) Use of a small low-noise wind tunnel for determining the aeroacoustic noise produced by components on a vehicle. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220 (11), 1539-1545. (doi:10.1243/09544070JAUTO249).

Record type: Article

Abstract

This paper describes an experimental method used to determine the aeroacoustic noise produced by a 'roof rack' placed on the roof of a vehicle. Testing was done on a vehicle roof positioned at the outlet jet of a small low-noise wind tunnel. A 'simulated vehicle cabin' was constructed beneath the vehicle roof that had similar absorption characteristics to an actual vehicle cabin. Sound pressure level measurements were made within the simulated vehicle cabin. The sound pressure level measurements were consistent with measurements made within the cabin of an actual vehicle in a large anechoic wind tunnel. The method could also be used to determine the in-cabin aeroacoustic noise produced by other vehicle accessories.

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Published date: July 2006
Related URLs:
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 340563
URI: https://eprints.soton.ac.uk/id/eprint/340563
ISSN: 0954-4070
PURE UUID: 4ea24574-a50f-41db-860a-88e2de5bddfa

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Date deposited: 26 Jun 2012 12:35
Last modified: 16 Jul 2019 21:59

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