Krylov et al Thin-Walled Struct 2004 - postprint.pdf (278.25 kB)
Investigation of structural-acoustic coupling in a thin-walled reduced-scale model of a car
conference contribution
posted on 2012-08-21, 14:18 authored by Victor V. Krylov, Stephen Walsh, Edward WinwardThe present paper describes the results of the recent research into simplified reduced-scale thin-walled
models that can be used for experimental studies of vehicle interior noise. In many important cases
such models can be described analytically, thus providing a developer with the effective engineering
tools for prediction and mitigation of vehicle interior noise, especially on a design stage. The
structural simplification in the models is based on understanding the physics of generation of
predominant modes of structural vibrations by particular dynamic forces and of radiation of sound by
the excited vibrations into the vehicle interior. The above-mentioned general approach is illustrated by
a 1:4-scale simplified physical model of a car developed at Loughborough University – 'QUASICAR'
(QUArter –Scale Interior Cavity Acoustic Rig). The model consists of a curved steel plate that is
simply supported by two rigid sidewalls made of massive wooden panels. The effect of road
irregularities exciting vehicle structural vibrations is imitated by electromagnetic shakers applied to the
bottom of the steel plate. Measurements of structural vibrations and of the acoustic pressure generated
inside the model at different positions demonstrate their good conceptual agreement with the results of
theoretical predictions.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
KRYLOV, V.V., WALSH, S.J. and WINWARD, R.E.T.B., 2004. Investigation of structural-acoustic coupling in a thin-walled reduced-scale model of a car. IN: Loughlan, J. (ed.). Thin-Walled Structures: Advances in Research, Design and Manufacturing Technology. Proceedings of the 4th International Conference on Thin-Walled Structures ICTWS 4, 22nd-24th June 2004, Loughborough University, UK, pp. 95 - 102Publisher
IOP Publishing Ltd © Taylor and FrancisVersion
- AM (Accepted Manuscript)
Publication date
2004Notes
This is a conference paper.ISBN
9780750310062Language
- en