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Recent developments in deployment analysis simulation using a multi-body computer codeDeployment is a candidate mode for construction of structural space systems components. By its very nature, deployment is a dynamic event, often involving large angle unfolding of flexible beam members. Validation of proposed designs and conceptual deployment mechanisms is enhanced through analysis. Analysis may be used to determine member loads thus helping to establish deployment rates and deployment control requirements for a given concept. Futhermore, member flexibility, joint free-play, manufacturing tolerances, and imperfections can affect the reliability of deployment. Analyses which include these effects can aid in reducing risks associated with a particular concept. Ground tests which can play a similar role to that of analyses are difficult and expensive to perform. Suspension systems just for vibration ground tests of large space structures in a 1 g environment present many challenges. Suspension of a structure which spatially expands is even more challenging. Analysis validation through experimental confirmation on relatively small simple models would permit analytical extrapolation to larger more complex space structures.
Document ID
19890015289
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Housner, Jerrold M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1989
Publication Information
Publication: Computational Methods for Structural Mechanics and Dynamics
Subject Category
Computer Programming And Software
Accession Number
89N24660
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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