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Experimental investigation of acoustic resonance properties of vehicle compartments

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conference contribution
posted on 19.04.2012, 12:26 authored by R. Gorman, Victor V. Krylov
This paper describes the results of the experimental investigations of acoustic resonance properties of vehicle compartments carried out on reduced-scale simplified wooden models and on a real five-door saloon. The reduced-scale models had different degrees of complexity and were produced in two modifications: with rigid interior walls (modelling ‘body in white’ condition) and with walls covered by felt (modelling the absorption caused by the presence of vehicle trim). Experimental investigations included measurements of the acoustic frequency response inside the cavities. After establishing all resonant frequencies of the cavities, the spatial distributions of the corresponding acoustic modes have been measured at some fixed resonant frequencies. The obtained experimental results are compared with the results of finite element calculations. Finally, the results of the experiments on the reduced-scale models are compared with the measurements taken in the interior of the real vehicle: ‘Ford Fiesta’. The comparison shows that the results for reduced-scale models of sufficient complexity agree quite well with the results of measurements carried out in the real car.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

GORMAN, R. and KRYLOV, V.V., 2004. Experimental investigation of acoustic resonance properties of vehicle compartments. IN: Proceedings of the 33rd International Congress and Exposition on Noise Control Engineering (Inter-Noise 2004), Prague, Czech Republic, 22-25 August 2004.

Publisher

© Czech Acoustical Society

Version

VoR (Version of Record)

Publication date

2004

Notes

This conference paper was presented at Inter-Noise 2004: http://internoise.feld.cvut.cz/

Language

en

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