Near‐field noise of high‐performance military aircraft and required hearing protection.

2010 ◽  
Vol 127 (3) ◽  
pp. 1877-1877
Author(s):  
Richard L. McKinley
Keyword(s):  
High Performance ◽  
Near Field ◽  
Hearing Protection ◽  
Military Aircraft ◽  
Field Noise

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

Sound quality analysis of far-field noise from a high-performance military aircraft

2017 ◽  
Vol 142 (4) ◽  
pp. 2514-2514
Author(s):  
S. Hales Swift ◽  
Kent L. Gee ◽  
Tracianne B. Neilsen ◽  
Alan T. Wall ◽  
Micah Downing ◽  
...  
Keyword(s):  
High Performance ◽  
Sound Quality ◽  
Quality Analysis ◽  
Far Field ◽  
Military Aircraft ◽  
Field Noise

Near-field noise measurements of a high-performance military jet aircraft

2012 ◽  
Vol 60 (4) ◽  
pp. 421-434 ◽  
Author(s):  
Alan T. Wall ◽  
Kent L. Gee ◽  
Michael M. James ◽  
Kevin A. Bradley ◽  
Sally A. McInerny ◽  
...  
Keyword(s):  
High Performance ◽  
Near Field ◽  
Noise Measurements ◽  
Field Noise

Measurement of Near-Field and Far-Field Noise From Full Scale High Performance Jet Engines

2010 ◽  
Author(s):  
Richard McKinley ◽  
Robert McKinley ◽  
Kent Gee ◽  
Tony Pilan ◽  
Frank Mobley ◽  
...  
Keyword(s):  
High Performance ◽  
Noise Exposure ◽  
Near Field ◽  
Broad Band ◽  
Supersonic Jet ◽  
Full Scale ◽  
Far Field ◽  
Jet Engine ◽  
Field Noise ◽  
Non Linear Propagation

Accurate measurement of the noise fields emitted by a full scale high performance jet engine and jet plume (with supersonic jet flow) requires detailed planning and careful execution. The apparent acoustic source can be very large, more than 50 feet long and 20 feet high and wide. The jet plume contains many noise generating sources, the main two being shock (broad band and shock cells) and turbulent mixing. This paper is an initial description of a detailed method to accurately measure and describe the near-field noise while simultaneously measuring the far-field noise. For a large high performance jet engine, the acoustic far-field may not be formed until more than 1000 ft away from the plume. The paper also describes proposed methods to measure the non-linear propagation of the noise from the near-field to the far-field. The proposed methodology described with vetting will be considered as an US military standard (MILSTD) with possible later consideration as American standard measurement technique to describe noise fields for personnel noise exposure and for measuring the performance of jet engine noise reduction technologies.

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

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