Vehicle Interior Noise and Vibration Reduction Using Experimental Structural Dynamics Modification

971915

05/20/1997

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
An accurate vehicle structural vibration analysis, in medium or high frequency range, is necessary for structural redesign to reduce the vehicle interior noise, however, FE analyses in those frequency ranges are usually inaccurate. To overcome this difficulty, a guide for using experimental data instead of finite analysis results was studied. Formulations for the sensitivity of FRFs and harmonic responses are derived, and a structure-acoustic coupling analysis in modal domain was done to cure the structure-bone noise problem. Also, a technique for determining the proper modification positions or regions for reducing the interior noise level is suggested and tested both numerically and experimentally with a 1/2 scale vehicle model.
Meta TagsDetails
DOI
https://doi.org/10.4271/971915
Pages
7
Citation
Park, Y., and Park, Y., "Vehicle Interior Noise and Vibration Reduction Using Experimental Structural Dynamics Modification," SAE Technical Paper 971915, 1997, https://doi.org/10.4271/971915.
Additional Details
Publisher
Published
May 20, 1997
Product Code
971915
Content Type
Technical Paper
Language
English