Title: Technical note: Vehicle interior noise source contribution and transfer path analysis

Authors: F.O. Tandogan, A. Guney

Addresses: Temsa R&D and Technology A.S., Tubitak MAM Technology Free Zone, 41470, Gebze-Kocaeli, Turkey. ' Department of Mechanical Engineering, Automotive Division, Istanbul Technical University, Laboratory of Engines and Vehicles, 34390 Maslak-Istanbul, Turkey

Abstract: In this study, vehicle air-borne and structure-borne noise sources and noise transfer paths are identified. By applying the interior noise source contribution and transfer path analysis method, the contribution of each noise source in the vehicle is calculated by subsystem level measurements. Moreover, the actual vehicle level interior noise has been measured and compared with the calculated levels for correlation. When good correlation is achieved, a critical peak level, which may be a potential NVH problem, has been investigated with the measured and calculated data.

Keywords: vehicle NVH; vehicle acoustics; vehicle noise; vehicle vibration; harshness; transfer path analysis; noise source contribution; FRF; interior noise.

DOI: 10.1504/IJVD.2010.029647

International Journal of Vehicle Design, 2010 Vol.52 No.1/2/3/4, pp.252 - 267

Published online: 30 Nov 2009 *

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