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.
Structural-Acoustic Analysis for the Prediction of Vehicle Body Acoustic Sensitivities
Sae Technical Papers
Noise & Vibration Conference & Exposition ; 1993
1993-05-01
Conference paper
English
Structural-acoustic analysis for the prediction of vehicle body acoustic sensitivities
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