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An Integrated Approach to Vehicle NVH Optimization
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Abstract
Vibro-acoustical optimization of vehicles is a complex task, due to the many interactions that exist between subcomponents and car body in a broad acoustical frequency range. The goal of this paper is to present a view on the different experimental methodologies for vibro-acoustical analysis, that approach the vehicle as a source, transfer and receiver system. This approach focuses on the use of transfer path and source identification techniques, both for structure-borne and air-borne contribution analysis, and on the use of modeling techniques as there are vibro-acoustical modal analysis, FRF based substructuring and experimental statistical energy analysis techniques. It is explained what the main focus is of each of the techniques, where they can be used in the vibro-acoustical optimization process and in which frequency ranges they are useful.
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Wyckaert, K., Gieien, L., van der Linden, P., and Van der Auweraer, H., "An Integrated Approach to Vehicle NVH Optimization," SAE Technical Paper 962489, 1996, https://doi.org/10.4271/962489.Also In
References
- Van der Auweraer H. Otte D. Augusztinovicz F. Vibro-acoustic Analysis of Trimmed Aircraft through Modal and Principal Field Modeling, AIAA paper 93-4380 15th AIAA Aeroacoustics Conference Long Beach, California October 1993
- Otte D. Development and Evaluation of Singular Value Analysis Methodologies for Studying Multivariate Noise and Vibration Problems PhD thesis, KULeuven, dept.PMA 1994
- Verheij J.W. Multipath Sound Transfer from Resiliently Mounted Shipboard Machinery PhD thesis 1986
- De Vis D. Hendricx W. van der Linden P.J.G. Development and Integration of an Advanced Unified Approach to Structure-borne Noise Analysis Second International Conference on Vehicle Comfort ATA 1992
- Hendricx W. Vandenbroeck D. Suspension Analysis in view of Road Noise Optimisation Proceedings of 1993 Noise and Vibration Conference SAE P-264 Traverse City
- Wyckaert K. Hendricx W. Transmission Path Analysis in View of Active Cancellation of Road Induced Noise in Vehicles Third International Congress on Air- and Structure-borne Sound and Vibration Montreal 1994
- Gielen L. van der Linden P.J.G. Deges R. The Identification, Quantification and Reduction of Structure-borne Road Noise in a Midsize Passenger Car SAE Conference on Advances in Component Designs for Noise and Vibration Control 960195 1996
- Wyckaert K. Augusztinovicz F. Vibro-acoustic Modal Analysis: Reciprocity, Model Symmetry and Model Validity International Seminar on Modal Analysis Leuven, Belgium 1995
- Wyckaert K. Van der Auweraer H. Operational Analysis, Transfer Path Analysis, Modal Analysis: Tools to Understand Road Noise Problems in Cars Proceedings SAE Noise and Vibration Conference Traverse City May 1995
- Wyckaert K. McAvoy G. Mas P. Flexible Substructuring based on Mixed Finite Element and Experimental Models: A Step Ahead of Transfer Path Analysis International Modal Analysis Conference Detroit 1996
- Ochsner S.D. Bernhard R.J. Application of a Component Mobility Modeling Technique to Automotive Suspension Systems Noise Control Engineering Journal 43 3 1995
- Lim T.C. Steyer G.C. System Dynamics Simulation based on Structural Modification Analysis Using Response Techniques proc. 10th International Modal Analysis Conference San Diego Feb 3-7 1992
- van der Linden P.J.G. Varet P. Experimental Determination of Low Frequency Noise Contributions of Interior Vehicle Body Panels in Normal Operation SAE Conference on Advances in Component Designs for Noise and Vibration Control 960194 1996
- De Meester K. Hermans L. Cuny N. High Frequency Experimental Statistical Energy Modelling of a High Speed Train: Measurement Strategy Model Derivation and Model Application, to be published at Internoise 96 Liverpool July 1996
- Bies D.A. Hamid S. In Situ Determination of Loss and Coupling Loss Factors by the Power Injection Method Journal of Sound and Vibration 70 2 187 204 1980
- Delanghe K. High Frequency Vibrations: Contributions to Experimental and Computational SEA Parameter Identification Techniques PhD thesis, KULeuven, dept.PMA 1996
- Lalor N. Practical Considerations for the Measurements of Internal and Coupling Loss Factors on Complex Structures ISVR Technical Report nr. 182 June 1990