A New Look at the High Frequency Boundary Element and Rayleigh Integral Approximations University of Kentucky

Format:

Conference/Event

Author/Creator:

Herrin, D. W., author.

Conference Name:

SAE 2003 Noise & Vibration Conference and Exhibition (2003-05-05 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

This paper revisits the popular Rayleigh integral approximation, and also considers a second approximation, the high frequency boundary element method which is similar to the Rayleigh integral. Both methods are approximations to the boundary integral equation, and can solve problems in a fraction of the time required by the conventional boundary element method. The development of both methods from the Helmholtz integral equation is demonstrated and the differences between the two methods are delineated. Both methods were compared on practical examples including a running engine, gearbox, and construction cab. It was concluded that both methods can reliably predict the sound power for many problems but are inaccurate for sound pressure computations

Notes:

Vendor supplied data

Publisher Number:

2003-01-1451

Access Restriction:

Restricted for use by site license