Numerical validation of using multisource statistically optimized near-field acoustical holography in the vicinity of a high performance military aircraft

2017 ◽  
Vol 142 (4) ◽  
pp. 2514-2514 ◽  
Author(s):  
Kevin M. Leete ◽  
Alan T. Wall ◽  
Kent L. Gee ◽  
Tracianne B. Neilsen ◽  
Micah Downing ◽  
...  
Keyword(s):  
High Performance ◽  
Near Field ◽  
Military Aircraft ◽  
Numerical Validation ◽  
Acoustical Holography

Near-field acoustical holography applied to high-performance jet aircraft noise

2010 ◽  
Author(s):  
Alan T. Wall ◽  
Kent L. Gee ◽  
Michael D. Gardner ◽  
Tracianne B. Neilsen ◽  
Michael M. James
Keyword(s):  
High Performance ◽  
Near Field ◽  
Aircraft Noise ◽  
Acoustical Holography

Application of near‐field acoustical holography to high‐performance jet aircraft noise.

2010 ◽  
Vol 127 (3) ◽  
pp. 1879-1879
Author(s):  
Alan T. Wall ◽  
Kent L. Gee ◽  
Michael M. James ◽  
Michael D. Gardner
Keyword(s):  
High Performance ◽  
Near Field ◽  
Aircraft Noise ◽  
Acoustical Holography

USE OF RIGID REFLECTORS FOR THE VIRTUAL INCREASE OF FIELD DATA IN THE NEAR-FIELD ACOUSTICAL HOLOGRAPHY

2007 ◽  
Vol 15 (01) ◽  
pp. 49-61 ◽  
Author(s):  
SUNG-IL KIM ◽  
JEONG-GUON IH ◽  
JI-HOON JEONG
Keyword(s):  
Boundary Element Method ◽  
Transfer Matrix ◽  
Field Data ◽  
Near Field ◽  
Measurement Data ◽  
Source Reconstruction ◽  
Matrix Equations ◽  
Inverse Boundary ◽  
Additional Information ◽  
Acoustical Holography

This paper suggests the use of rigid reflectors to provide additional information for source reconstruction in near-field acoustical holography based on the inverse boundary element method. The additional field pressure and transfer matrix equations introduced provide a virtual increase in the measurement data without increasing the number of sensors or altering their arrangement, which could cost more than using reflectors. In order to validate this method, we successfully reconstruct a vibrating ellipse.

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