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Operational Analysis, Transfer Path Analysis, Modal Analysis: Tools to Understand Road Noise Problems in Cars
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English
Abstract
This paper discusses a road noise analysis application on a passenger car. It involves a study of the interior noise in the car, which is explained in function of the energy transfer paths from the suspension into the car body. For this, multiple reference transfer path analysis is used. A link is made between specific characteristics of this energy transfer and the operational analysis of the measurements on the suspension during road tests, as well as the acoustical modes of the cavity. The operational data are correlated with modal analysis results on the suspension, explaining certain problems occurring during running condition.
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Citation
Wyckaert, K. and Van der Auweraer, H., "Operational Analysis, Transfer Path Analysis, Modal Analysis: Tools to Understand Road Noise Problems in Cars," SAE Technical Paper 951251, 1995, https://doi.org/10.4271/951251.Also In
References
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- Hendricx W. Vandenbroeck D. Suspension Analysis in View of Road Noise Optimisation Proc. of the 1993 Noise and Vibration Conference, SAE P264 647 652 Traverse City
- Wyckaert K. Hendricx W. Transmission Path Analysis in View of Active Cancellation of Road Induced Noise in Automotive Vehicles Third International Congress on Air- and Structure-Borne Sound and Vibration Montreal June 13-15 1994
- Wyckaert K. Van der Auweraer H. Hendricx W. Correlation of Acoustical Modal Analysis with Operating Data for Road Noise Problems International Seminar on Model Analysis Leuven 1994