We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Reverberant Chamber Acoustic Testing of Spaceflight Hardware - Test Article Absorption Effects.
- Authors
Hozman, Aron D.; Hughes, William O.
- Abstract
The exposure of a customer's aerospace test article to a simulated acoustic launch environment is typically performed in a reverberant acoustic test chamber. The acoustic pre-test runs that will ensure that the sound pressure levels of this environment can indeed be met by a test facility are normally performed without a test article dynamic simulator of representative acoustic absorption and size. If an acoustic test facility's available acoustic power capability becomes maximized with the test article installed during the actual test, the customer's environment requirement may become compromised. To understand the risk of not achieving the customer's in-tolerance spectrum requirement with the test article installed, an acoustic power margin evaluation as a function of frequency may he performed by the test facility. The method for this evaluation of acoustic power is discussed in this article. This method was applied at the NASA Glenn Research Center Plum Brook Station's Reverberant Acoustic Test Facility for the SpaceX Falcon 9 Payload Fairing acoustic test program.
- Subjects
SOUND pressure measurement; ACOUSTIC variables measurement; SPACE flight; AERONAUTICS; NASA Glenn Research Center
- Publication
Sound & Vibration, 2017, Vol 51, Issue 3, p6
- ISSN
1541-0161
- Publication type
Article