A new hybrid method between equivalent source method and boundary element method for modeling diffraction

2021 ◽  
Vol 150 (4) ◽  
pp. A208-A208
Author(s):  
Vincent Roggerone ◽  
Régine Guillermin ◽  
Sandrine T. Rakotonarivo
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Hybrid Method ◽  
Equivalent Source ◽  
Source Method ◽  
Equivalent Source Method ◽  
Element Method

Equivalent Source Method and Boundary Element Method for Calculating Combustion Noise

2008 ◽  
Vol 94 (4) ◽  
pp. 514-527 ◽  
Author(s):  
Rafael Piscoya ◽  
Haike Brick ◽  
Martin Ochmann ◽  
Peter Költzsch
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Combustion Noise ◽  
Equivalent Source ◽  
Source Method ◽  
Equivalent Source Method ◽  
Element Method

A hybrid method combining the edge source integral equation and the boundary element method for scattering problems

2016 ◽  
Vol 139 (4) ◽  
pp. 2202-2202 ◽  
Author(s):  
Sara R. Martín Román ◽  
U. Peter Svensson ◽  
Jan Šlechta ◽  
Julius O. Smith
Keyword(s):  
Integral Equation ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Hybrid Method ◽  
Scattering Problems ◽  
Element Method

A BOUNDARY-ELEMENT METHOD FOR ATOMIZATION OF A FINITE LIQUID JET

1995 ◽  
Vol 5 (6) ◽  
pp. 621-638 ◽  
Author(s):  
J. H. Hilbing ◽  
Stephen D. Heister ◽  
C. A. Spangler
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Liquid Jet ◽  
Element Method

Application of the Boundary Element Method and Modal Analysis to Tire Acoustics Problems

1993 ◽  
Vol 21 (2) ◽  
pp. 66-90 ◽  
Author(s):  
Y. Nakajima ◽  
Y. Inoue ◽  
H. Ogawa
Keyword(s):  
Finite Element ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Acoustic Radiation ◽  
Traffic Noise ◽  
Noise Prediction ◽  
Prediction System ◽  
Tire Noise ◽  
Acoustic Contribution ◽  
Element Method

Abstract Road traffic noise needs to be reduced, because traffic volume is increasing every year. The noise generated from a tire is becoming one of the dominant sources in the total traffic noise because the engine noise is constantly being reduced by the vehicle manufacturers. Although the acoustic intensity measurement technology has been enhanced by the recent developments in digital measurement techniques, repetitive measurements are necessary to find effective ways for noise control. Hence, a simulation method to predict generated noise is required to replace the time-consuming experiments. The boundary element method (BEM) is applied to predict the acoustic radiation caused by the vibration of a tire sidewall and a tire noise prediction system is developed. The BEM requires the geometry and the modal characteristics of a tire which are provided by an experiment or the finite element method (FEM). Since the finite element procedure is applied to the prediction of modal characteristics in a tire noise prediction system, the acoustic pressure can be predicted without any measurements. Furthermore, the acoustic contribution analysis obtained from the post-processing of the predicted results is very helpful to know where and how the design change affects the acoustic radiation. The predictability of this system is verified by measurements and the acoustic contribution analysis is applied to tire noise control.

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