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International Space Station Acoustics - A Status ReportIt is important to control acoustic noise aboard the International Space Station (ISS) to provide a satisfactory environment for voice communications, crew productivity, and restful sleep, and to minimize the risk for temporary and permanent hearing loss. Acoustic monitoring is an important part of the noise control process on ISS, providing critical data for trend analysis, noise exposure analysis, validation of acoustic analysis and predictions, and to provide strong evidence for ensuring crew health and safety, thus allowing Flight Certification. To this purpose, sound level meter (SLM) measurements and acoustic noise dosimetry are routinely performed. And since the primary noise sources on ISS include the environmental control and life support system (fans and airflow) and active thermal control system (pumps and water flow), acoustic monitoring will indicate changes in hardware noise emissions that may indicate system degradation or performance issues. This paper provides the current acoustic levels in the ISS modules and sleep stations, and is an update to the status presented in 20031. Many new modules, and sleep stations have been added to the ISS since that time. In addition, noise mitigation efforts have reduced noise levels in some areas. As a result, the acoustic levels on the ISS have improved.
Document ID
20100039608
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Allen, Christopher S.
(NASA Johnson Space Center Houston, TX, United States)
Denham, Samuel A.
(Boeing Co. Huntsville, AL, United States)
Date Acquired
August 25, 2013
Publication Date
July 17, 2011
Subject Category
Acoustics
Report/Patent Number
JSC-CN-24071
JSC-CN-22173
Meeting Information
Meeting: 2011 International Conference on Environmental Systems
Location: Portland, OR
Country: United States
Start Date: July 17, 2011
End Date: July 21, 2011
Funding Number(s)
CONTRACT_GRANT: NAS15-10110
Distribution Limits
Public
Copyright
Public Use Permitted.
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