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A hybrid approach to test-analysis-model development for large space structuresThe present FEM reduction method for the generation of test-analysis-models (TAMs) in test-analysis correlation addresses contentions that the current modal TAM is hypersensitive to differences between test model shapes and analysis mode shapes, thereby generating large off-diagonal terms within the orthogonality and cross-orthogonality matrices employed in test-analysis mode-shape correlation. A hybrid TAM methodology is accordingly developed which combines the exact representation of the FEM target modes from the modal TAM with the more accurate TAM representation of the residual modes; the superior residual dynamics representation of the hybrid TAM is demonstrated for a detailed representation of a large space structure.
Document ID
19910062589
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kammer, D. C.
(Wisconsin, University Madison, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1991
Publication Information
Publication: ASME, Transactions, Journal of Vibration and Acoustics
Volume: 113
ISSN: 0739-3717
Subject Category
Structural Mechanics
Accession Number
91A47212
Distribution Limits
Public
Copyright
Other

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