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The Testing Behind The Test Facility: The Acoustic Design of the NASA Glenn Research Center's World-Class Reverberant Acoustic Test FacilityThe National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is leading the design and build of the new world-class vibroacoustic test capabilities at the NASA GRC?s Plum Brook Station in Sandusky, Ohio, USA. Benham Companies, LLC is currently constructing modal, base-shake sine and reverberant acoustic test facilities to support the future testing needs of NASA?s space exploration program. T he large Reverberant Acoustic Test Facility (RATF) will be approximately 101,000 ft3 in volume and capable of achieving an empty chamber acoustic overall sound pressure level (OASPL) of 163 dB. This combination of size and acoustic power is unprecedented amongst the world?s known active reverberant acoustic test facilities. The key to achieving the expected acoustic test spectra for a range of many NASA space flight environments in the RATF is the knowledge gained from a series of ground acoustic tests. Data was obtained from several NASA-sponsored test programs, including testing performed at the National Research Council of Canada?s acoustic test facility in Ottawa, Ontario, Canada, and at the Redstone Technical Test Center acoustic test facility in Huntsville, Alabama, USA. The majority of these tests were performed to characterize the acoustic performance of the modulators (noise generators) and representative horns that would be required to meet the desired spectra, as well as to evaluate possible supplemental gas jet noise sources. The knowledge obtained in each of these test programs enabled the design of the RATF sound generation system to confidently advance to its final acoustic de-sign and subsequent on-going construction.
Document ID
20110009932
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Hughes, William O. (NASA Glenn Research Center Cleveland, OH, United States)
McNelis, Mark E. (NASA Glenn Research Center Cleveland, OH, United States)
McNelis, Anne M. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
January 31, 2011
Subject Category
Acoustics
Report/Patent Number
E-17701
Meeting Information
Meeting: IMAC XXIX, Jan.31- Feb.3, 2011
Location: Cleveland, OH
Country: United States
Start Date: January 31, 2011
End Date: February 3, 2011
Funding Number(s)
WBS: WBS 644423.10.34.03.03.03.22
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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