Structural Optimization via Steepest Descent and Interactive Computation

Item

Title
Structural Optimization via Steepest Descent and Interactive Computation
Description
In this paper a hybrid method of optimal structural design is developed and applied, using a steepest descent optimization technique in an interactive mode of computing. A method of computing design sensitivity is developed as part of a steepest descent optimization method. A technique is presented for utilization of this data by an experienced designer, interacting with the iterative computer algorithm. The designer is allowed to alter the structural configuration to seek a global, rather than just a local, optimum. Two examples are solved with a number of loading conditions and design constraints to illustrate the flexibility of the technique. Results for these problems are of interest in their own right.
Creator
Haug, E. J., Jr.
Arora, J. S.
Abstract
In this paper a hybrid method of optimal structural design is developed and applied, using a steepest descent optimization technique in an interactive mode of computing. A method of computing design sensitivity is developed as part of a steepest descent optimization method. A technique is presented for utilization of this data by an experienced designer, interacting with the iterative computer algorithm. The designer is allowed to alter the structural configuration to seek a global, rather than just a local, optimum. Two examples are solved with a number of loading conditions and design constraints to illustrate the flexibility of the technique. Results for these problems are of interest in their own right.
Corporate Author
University of Iowa
Report Number
AFFDL TR 71-160 p. 591-618
Report Availability
Full text available
Publisher
Wright-Patterson Air Force Base, OH : Air Force Flight Dynamics Laboratory, Air Force Systems Command and Air Force Institute of Technology, Air University
Date
1973
Type
article
Date Issued
1973-12
Provenance
Bombardier/Aero
Distribution Classification
1
Distribution Conflict
No
DTIC Record Exists
No
Format
1 online resource (28 pages) : ill.
Extent
28
Identifier
AD0785968
Is Part Of
Proceedings of the Third Conference on Matrix Methods in Structural Mechanics: Proceedings of the Conference held at Wright-Patterson Air Force Base, Ohio 19-21 October 1971
Media
AFFDLTR71-160article20.pdf

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Items with "Has Part: Structural Optimization via Steepest Descent and Interactive Computation"
Title Class
Proceedings of the Third Conference on Matrix Methods in Structural Mechanics: Proceedings of the Conference held at Wright-Patterson Air Force Base, Ohio 19-21 October 1971