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An Evaluation of the Additional Acoustic Power Needed to Overcome the Effects of a Test-Articles Absorption During Reverberant Chamber Acoustic Testing of Spaceflight HardwareIt is important to realize that some test-articles may have significant sound absorption that may challenge the acoustic power capabilities of a test facility. Therefore, to mitigate this risk of not being able to meet the customers target spectrum, it is prudent to demonstrate early-on an increased acoustic power capability which compensates for this test-article absorption. This paper describes a concise method to reduce this risk when testing aerospace test-articles which have significant absorption. This method was successfully applied during the SpaceX Falcon 9 Payload Fairing acoustic test program at the NASA Glenn Research Center Plum Brook Stations RATF.
Document ID
20150002085
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Hozman, Aron D. (NASA Glenn Research Center Cleveland, OH United States)
Hughes, William O. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
February 25, 2015
Publication Date
September 8, 2014
Subject Category
Launch Vehicles And Launch Operations
Acoustics
Spacecraft Design, Testing And Performance
Report/Patent Number
GRC-E-DAA-TN17502
Meeting Information
Meeting: Noise-Con 2014
Location: Ft. Lauderdale, FL
Country: United States
Start Date: September 8, 2014
End Date: September 10, 2014
Sponsors: Institute of Noise Control Engineering
Funding Number(s)
WBS: WBS 359257.01.07.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
sound power
absorption
acoustic

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