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Application of Ritz vectors for dynamic analysis of large structuresThe use of an orthogonal set of specially selected Ritz vectors is shown to be very effective in reducing the cost of dynamic analysis by modal superposition. Several mechanical structures are examined, and the Ritz vector approach is compared to the classical eigenvector approach on the basis of cost, accuracy and elapsed analysis (throughput) time. Mathematical proof of the completeness of orthogonal Ritz vectors is provided for the case of a positive definite mass matrix and a symmetric stiffness matrix.
Document ID
19850062589
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Arnold, R. R.
(Anamet Labs., Inc. San Carlos, CA, United States)
Citerley, R. L.
(Anamet Laboratories, Inc. San Carlos, CA, United States)
Chargin, M.
(Anamet Labs., Inc. San Carlos, CA, United States)
Galant, D.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Computers and Structures
Volume: 21
Issue: 3, 19
ISSN: 0045-7949
Subject Category
Structural Mechanics
Accession Number
85A44740
Distribution Limits
Public
Copyright
Other

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