TY - GEN
T1 - An assessment of the high frequency boundary element and visible element Rayleigh integral approximations
AU - Herrin, D. W.
AU - Martinus, F.
AU - Wu, T. W.
AU - Seybert, A. F.
PY - 2007
Y1 - 2007
N2 - This paper revisits the popular Rayleigh integral approximation, and also considers 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, and gearbox. Theoretical examples such as a pulsating and oscillating sphere were also considered. It was concluded that both methods can reliably predict the sound power for many problems but are inaccurate for sound pressure computations.
AB - This paper revisits the popular Rayleigh integral approximation, and also considers 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, and gearbox. Theoretical examples such as a pulsating and oscillating sphere were also considered. It was concluded that both methods can reliably predict the sound power for many problems but are inaccurate for sound pressure computations.
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M3 - Conference contribution
AN - SCOPUS:84873981435
SN - 9781605603858
T3 - Turkish Acoustical Society - 36th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2007 ISTANBUL
SP - 4647
EP - 4657
BT - Turkish Acoustical Society - 36th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2007 ISTANBUL
T2 - 36th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2007
Y2 - 28 August 2007 through 31 August 2007
ER -