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An assessment of the microgravity and acoustic environments in Space Station Freedom using VAPEPSThe Vibroacoustic Payload Environment Prediction System (VAPEPS) was used to predict the stationary on-orbit environments in one of the Space Station Freedom modules. The model of the module included the outer structure, equipment and payload racks, avionics, and cabin air and duct systems. Acoustic and vibratory outputs of various source classes were derived and input to the model. Initial results of analyses, performed in one-third octave frequency bands from 10 to 10,000 Hz, show that both the microgravity and acoustic environments will be exceeded in some one-third octave bands with the current SSF design. Further analyses indicate that interior acoustic level requirements will be exceeded even if the microgravity requirements are met.
Document ID
19930071889
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bergen, Thomas F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Scharton, Terry D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Badilla, Gloria A.
(JPL Pasadena, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: International Congress on Recent Developments in Air- and Structure-Borne Sound and Vibration, 2nd, Auburn Univ., AL, Mar. 4-6, 1992, Proceedings. Vol. 1 (A93-55851 24-31)
Publisher: Auburn University
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
93A55886
Distribution Limits
Public
Copyright
Other

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