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Road Noise Reduction Using a Source Decomposition and Noise Path Analysis
Technical Paper
2005-01-2502
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It is considered that improper usage of rubber bushes and weak dynamic characteristics of chassis and body structures yield interior road noise problems. This paper describes systematic processes for road noise improvement along with measurement and analysis process. Firstly, the noise sources are identified by using a source decomposition method. Secondly, the main noise paths are identified by using a noise path analysis (NPA) method. Thirdly, the design modification of body panels is suggested for road noise reduction by using a panel contribution analysis. Finally the method is validated by applying to road noise improvement process for a new vehicle.
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Citation
Yoo, B. and Chang, K., "Road Noise Reduction Using a Source Decomposition and Noise Path Analysis," SAE Technical Paper 2005-01-2502, 2005, https://doi.org/10.4271/2005-01-2502.Also In
References
- Bendat, J. Piersol, A. Random Data John Wiley & Sons 201 324 1991
- Gu, P. Juan, J. “Application of Noise Path Analysis Technique to Transient Excitation,” SAE Noise and Vibration Conference and Exposition 1283 1288 1997
- Hendriex, W. Choi, Y. Ha, S. Lee, H. “Experimental Body Panel Contribution Analysis for Road Induced Interior Noise of a Passenger Car,” SAE Noise and Vibration Conference and Exposition 351 355 1997