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Methods for evaluation of the microgravity environment aboard Space Station FreedomSpace Station Freedom will be a platform for microgravity research. For superior microgravity science, the experiment locations must experience very little acceleration in the quasi-steady, structural dynamic, and vibroacoustic frequency ranges. This paper presents the methods that were developed for evaluation of the microgravity environment in the structural dynamic range. An integrated finite element model of the space station was used to conduct analysis for the on-orbit microgravity environment. Methods were developed to evaluate sinusoidal, random, and transient disturbances. Sources of disturbances aboard the Space Station were quantified and forcing functions were assembled. The resulting acceleration levels at the experiment locations due to these disturbances were computed and assessed against the microgravity acceleration requirement curve.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Wetzel, John P.
(NASA Headquarters Washington, DC United States)
Curtis, Daniel M.
(Grumman Corp. Space Station Integration Div., Reston, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: AIAA(ASME)ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures Forum, La Jolla, CA, Apr. 19-22, 1993, Technical Papers. Pt. 6 (A93-33876 1
Publisher: American Institute of Aeronautics and Astronautics
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 93-1663
Accession Number
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