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Recent developments in quasi-Newton methods for structural analysis and synthesisUnlike the Newton-Raphson method, quasi-Newton methods by virture of the updates and step length control procedures are globally convergent and hence better suited for the solution of nonlinear problems of structural analysis and synthesis. Extension of quasi-Newton algorithms to large scale problems has led to the development of sparse update algorithms and to economical strategies for evaluating sparse Hessians. Ill-conditioning problems have led to the development of self-scaled variable metric and conjugate gradient algorithms, as well as the use of the singular perturbation theory. This paper emphasizes the effectiveness of such quasi-Newton algorithms for nonlinear structural analysis and synthesis.
Document ID
19810045005
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kamat, M. P.
(Virginia Polytechnic Institute and State University Blacksburg, Va., United States)
Hayduk, R. J.
(NASA Langley Research Center Impact Dynamics Branch, Hampton, Va., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 81-0576
Meeting Information
Meeting: Conference on Structures, Structural Dynamics and Materials
Location: Atlanta, GA
Start Date: April 6, 1981
End Date: April 8, 1981
Accession Number
81A29409
Distribution Limits
Public
Copyright
Other

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