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A study of modal coupling procedures for the space shuttleVarious procedures for analytically coupling two or more substructures to obtain modal data for assembly, using data obtained from mode surveys of the individual components are discussed. Particular attention was paid to the applicability of the techniques investigated to the space shuttle, with the possible replacement of full scale mode surveys of the shuttle assembly by component mode surveys along with analytical coupling. The synthesis procedures formulated in this report can all handle redundant connections, although the presence of redundancies does add complication to one of the techniques. All of the procedures use the test data directly, without going through an intermediate analytical model, and no analytical stiffness data is required to supplement the mode survey data. The coupling precedures were initially verified and evaluated by applying them to analytical check problems.
Document ID
19730011154
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Goldenberg, S. (Grumman Aerospace Corp. Bethpage, NY, United States)
Shapiro, M. (Grumman Aerospace Corp. Bethpage, NY, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1972
Subject Category
Space Vehicles
Report/Patent Number
NASA-CR-112252
Accession Number
73N19881
Funding Number(s)
CONTRACT_GRANT: NAS8-10635
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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