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Optimization of three dimensional combined truss/frame structures

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Author
Bender, Gregory L.
Date
1982-10
Advisor
Vanderplaats, G.N.
Second Reader
Shin, Young S.
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Abstract
A finite element code is developed for analysis and design of three-dimensional truss and frame structures. Structures are designed for minimum weight subject to constraints on: member stresses, Euler buckling, shell buckling, joint displacements and system natural frequencies. Structures are optimized with respect to member size and strength configuration. The finite element code may be used for analysis only, or may be coupled to an optimizer of the user's choice. The displacement method is used for static analysis, and structural natural frequencies are calculated via the subspace iteration method. Flexibility is provided for expansion to other than tubular frame elements, and provisions are made for the future growth to panel and other types of structural elements. Documentation is provided to facilitate use of the code. A User's manual is presented with examples and results. An explanation of how this code may be couple to an optimizer is also provided.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/20290
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