A finite element method for determining the acoustic modes of irregular shaped cavities |
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| Authors: | M Petyt J Lea GH Koopmann |
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| Institution: | Institute of Sound and Vibration Research, University of Southampton SO9 5NH, England |
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| Abstract: | A twenty node, isoparametric acoustic finite element model is developed for analysing the acoustic modes of irregular shaped cavities. The element is first used to analyse a rectangular enclosure. This indicates that good accuracy can be obtained if one element is used between each nodal plane. Experiments are described on a model van enclosure. A finite element analysis of the model shows very good agreement with the measured results. |
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