Standard

SAE 2009-01-2211

May 2009 Current

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Abstract

As an alternative to the element based methods, recently a wave based technique (WBT) has been developed. Since it is based on the indirect Trefftz approach, exact solutions of the governing differential equation are used to approximate the dynamic field variables. This paper discusses the extensions of the WBT for the analysis of engine noise radiation problems in 3 dimensions under anechoic conditions. Furthermore, necessary extensions of shape functions, numerical integration and a methodology to create a WBT radiation models are described. The performance of the method compared to a commercial BEM solution is demonstrated with a real engine example.

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Standard from SAE International
Published: May 19 2009
Document type: IS
Pages
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Publisher: SAE International
Distributor: SAE International

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Abstract

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