System Level Noise Source Identification and Diagnostics on a Vehicle Door Module

Beniwal, Ravinder; Wu, Sean F.

doi:10.4271/2007-01-2280

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“…In order to control interior noise, the noise source in a vehicle should be identified. Numerous methods for noise source identification including sound quality [3,4], acoustic holography [1,5], operational modal analysis, experimental modal analysis [6], inverse boundary element [7], wavelet transform [8], etc. have been widely used.…”

Section: Introductionmentioning

confidence: 99%

Noise source identification of a passenger car based on sound intensity measurement

Chen

Wang

Liang

et al. 2010

IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS

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In order to identify the interior noise source of the test vehicle, sound intensity measurement technology was used. The principle of the sound intensity measurement technology was introduced. The grids were arranged at the interior surfaces of the firewall, dashboard, roof, door, front windshield, and gear lever. The maximum noise source was confirmed to be the left front door. Also, the frequencies of the measured surfaces were calculated, and the first top three frequencies were confirmed in the descending order of the sound intensity. The technology support was provided for the interior noise control.

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