Research Article
Aug 1975
Approximate Reanalysis Techniques with Substructuring
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VIEW THE REPLYAuthors: Ahmed K. Noor, M.ASCE, and Harold E. LowderAuthor Affiliations
Publication: Journal of the Structural Division
Volume 101, Issue 8
Abstract
A simple approximate reanalysis technique is presented for use in the automated (optimum) design of large and complex structures. The technique is based on the use of the reduced basis method in conjunction with substructuring approach. The displacement vector of the modified structure is approximated by a linear combination of a normalized set of s first-order sensitivity analysis vectors, where s is the number of design variables. Consideration is focused on the potential advantages of the reduced basis - substructuring technique for use in automated design systems. The high accuracy of the proposed technique for sizable changes in the design variables is demonstrated by means of a numerical example of a large transmission tower. Also, comparison is made with Taylor expansion method based on the reciprocal variables.
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Published In
Journal of the Structural Division
Volume 101 • Issue 8 • August 1975
Pages: 1687 - 1698
Copyright
© 1975 American Society of Civil Engineers.
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Published in print: Aug 1975
Published online: Feb 1, 2021
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Ahmed K. Noor, M.ASCE
Research Prof. of Engrg., George Washington Univ. Center at NASA Langley Research Center, Hampton, Va.
Harold E. Lowder
Graduate Research Asst., George Washington Univ. Center at NASA Langley Research Center, Hampton, Va.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.