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Combining global and local approximationsA method based on a linear approximation to a scaling factor, designated the 'global-local approximation' (GLA) method, is presented and shown capable of extending the range of usefulness of derivative-based approximations to a more refined model. The GLA approach refines the conventional scaling factor by means of a linearly varying, rather than constant, scaling factor. The capabilities of the method are demonstrated for a simple beam example with a crude and more refined FEM model.
Document ID
19910065731
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Haftka, Raphael T.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1991
Publication Information
Publication: AIAA Journal
Volume: 29
ISSN: 0001-1452
Subject Category
Numerical Analysis
Accession Number
91A50354
Funding Number(s)
CONTRACT_GRANT: NAG1-224
Distribution Limits
Public
Copyright
Other

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