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Automobile Interior Noise Reduction Using Finite Element Methods
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English
Abstract
Low-frequency interior noise in the automobile passenger compartment can be significantly affected by the vibration behavior of the body panels which surround the enclosed cavity. This paper reviews a finite element method for computing panel-excited interior noise and outlines an approach for identifying potentially noisy panels adjacent to the passenger compartment. To illustrate the potential of the analytical method, it is applied to a production automobile. A structural modification suggested by the procedure is shown to significantly reduce the low-frequency interior noise to which the occupant is exposed. Experimental verification of the method is presented.
Authors
Citation
Nefske, D. and Howell, L., "Automobile Interior Noise Reduction Using Finite Element Methods," SAE Technical Paper 780365, 1978, https://doi.org/10.4271/780365.Also In
References
- Wolf J. A. Jr. Nefske D.J. “NASTRAN Modeling and Analysis of Rigid and Flexible Walled Acoustic Cavities,” NASTRAN: User's Experiences 615 631 NASA Technical Memorandum X-3278 Washington, D. C. Sept. 1975
- Wolf J. A. Jr. Nefske D.J. Howell L.J. “Structural-Acoustic Finite Element Analysis of the Automobile Passenger Compartment,” Paper No. 760184 SAE Automotive Engineering Congress and Exposition Detroit, Michigan Feb. 1976
- Jha S. K. “Characteristics and Sources of Noise and Vibration and Their Control in Motor Cars,” Journal of Sound and Vibration 47 4 1976 543 558
- Apps D. C. “Automobile Noise,” Handbook of Noise Control Harris C.M. New York 1957
- Priede T. Jha S. K. “Low Frequency Noise in Cars,” Instn. of Mech. Engrs. Journal of Automotive Engineering July 1970 17 21
- Peterson A.P.G. Gross E. E. Handbook of Noise Measurements Concord, Mass. General Radio Company 1972
- Kryter K. D. The Effects of Noise on Man New York Academic Press 1970
- Miller J. D. “Effects of Noise on People,” Journal of the Acoustical Society of America 56 3 1974 729 763
- Beranek L.L. Noise and Vibration Control New York McGraw-Hill 1971
- Bryan M.E. “A Tenative Criterion for Acceptable Noise Levels in Passenger Vehicles,” Journal of Sound and Vibration 48 4 1976 525 535
- Stevens S.S. “Perceived Level of Noise by Mark VII and Decibels (E),” Journal of the Acoustical Society of America 51 2 1972 575 601
- Kamal M.M. Wolf J.A. Jr. “Finite Element Models for Automotive Vehicle Vibrations,” ASME Finite Element Applications in Vibration Problems Book No. H00102 1977 67 92
- Huebner K.H. The Finite Element Method for Engineers New York John Wiley & Sons 1975
- Morse P.M. Ingard K.U. Theoretical Acoustics New York McGraw-Hill 1968
- Zienkiewicz O.C. The Finite Element Method in Engineering Science London McGraw-Hill 1971
- LeSalver R. Jennequin G. “Méthode de Calcul Pour les Bruits Basse Frequence dans un Habitacle de Voiture,” Proceedings of the 14th FISITA Conference London 1972 89 100
- Craggs A. “The Use of Simple Three-Dimensional Acoustic Finite Elements for Determining the Natural Modes and Frequencies of Complex Shaped Enclosures,” Journal of Sound and Vibration 23 3 1972 331 339
- Shuku T. Ishihara K. “The Analysis of the Acoustic Field in Irregularly Shaped Rooms by the Finite Element Method,” Journal of Sound and Vibration 29 1 1973 67 76
- Craggs A. “An Acoustic Finite Element Approach for Studying Boundary Flexibility and Sound Transmission Between Irregular Enclosures,” Journal of Sound and Vibration 30 3 1973 343 357
- Petyt M. Lea J. Koopman G. H. “A Finite Element Method for Determining the Acoustic Modes of Irregularly Shaped Cavities,” Journal of Sound and Vibration 45 4 1976 495 502
- Jha S. K. Priede T. “Origin of Low Frequency Noise in Motor Cars,” Proceedings of the 14th FISITA Conference 1972 46 55
- Smith D.L. “Experimental Techniques for Acoustic Modal Analysis of Cavities,” Proceedings of the Internoise 76 Conference Washington, D. C. April 1976 129 132
- Dowell E.H. Gorman G.F. “Acoustoelasticity: General Theory, Acoustic Natural Modes and Forced Response to Sinusoidal Excitation, Including Comparisons with Experiment,” Journal of Sound and Vibration 52 4 1977 519 542
- Jha S.K. Cheilas N. “Acoustic Characteristics of a Car Cavity and Estimation of Interior Sound Field Produced by Vibrating Panel,” ASME Paper No. Dec. 1976
- Jennequin G. “Is the Computation of Noise Level Inside a Car Feasible?,” Proceedings of the Instn. of Mech. Engrs. Symposium on Vibration and Noise in Motor Vehicles London Paper No. C108/71 1972 132 137
- Shuku T. et al “Reduction of Interior Car Noise by Control of Cavity Resonance,” Proceedings of the 14th FISITA Conference London 1972 56 62
- Wolf J.A. “Modal Synthesis for Combined Structural-Acoustic Systems,” American Institute of Aeronautics and Astronautics Journal 15 5 1977 743 745
- Bendat J.S. Piersol A.G. Random Data: Analysis and Measurement Procedures New York John Wiley & Sons 1971