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Determining transmission loss from measured external and internal acoustic environments
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smith, A. M. Scogin, Tyler |
| Copyright Year | 2012 |
| Description | An estimate of the internal acoustic environment in each internal cavity of a launch vehicle is needed to ensure survivability of Space Launch System (SLS) avionics. Currently, this is achieved by using the noise reduction database of heritage flight vehicles such as the Space Shuttle and Saturn V for liftoff and ascent flight conditions. Marshall Space Flight Center (MSFC) is conducting a series of transmission loss tests to verify and augment this method. For this test setup, an aluminum orthogrid curved panel representing 1/8th of the circumference of a section of the SLS main structure was mounted in between a reverberation chamber and an anechoic chamber. Transmission loss was measured across the panel using microphones. Data measured during this test will be used to estimate the internal acoustic environments for several of the SLS launch vehicle internal spaces. |
| File Size | 920990 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20130000694 |
| Archival Resource Key | ark:/13960/t3wt3p710 |
| Language | English |
| Publisher Date | 2012-12-10 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Anechoic Chambers Launch Vehicles Reverberation Chambers Noise Reduction Transmission Loss Spacecraft Launching Avionics Microphones Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
