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Structural-Acoustic Analysis for the Prediction of Vehicle Body Acoustic Sensitivities
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English
Abstract
Body acoustic sensitivity, defined as the interior sound pressure due to a unit force applied to the body, has a major influence on the powertrain and road noise of a vehicle. Body acoustic sensitivity can be predicted analytically in the design stage of a vehicle program using structural-acoustic analysis. Recognition and correction of potential problems at this stage is a cost effective approach to improving a vehicle’s NVH performance.
This paper describes the structural-acoustic analysis procedure. Techniques for developing the structural and acoustic models and coupling them to form a structural-acoustic system model are discussed. An application of the procedure for prediction and improvement of body acoustic sensitivity is given for a passenger vehicle.
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Authors
Citation
Campbell, B., Abrishaman, M., and Stokes, W., "Structural-Acoustic Analysis for the Prediction of Vehicle Body Acoustic Sensitivities," SAE Technical Paper 931327, 1993, https://doi.org/10.4271/931327.Also In
References
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- I-DEAS User’s Manual Structural Dynamics Research Corporation Milford, Ohio
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- Schiller, T. Osawa, T. Abrishaman, M. Campbell, B. Stokes, W. Incorporation of Analytical Simulations into the NVH Design and Development Process of the Nissan Quest SAE Paper No. 922121 1992