Structural Optimization via Steepest Descent and Interactive Computation

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Report Number: AFFDL TR 71-160 p. 591-618
Author(s): Haug, E. J., Jr., Arora, J. S.
Corporate Author(s): University of Iowa
Date of Publication: 1973-12
Pages: 28
DoD Task:
Identifier: This paper is part of a conference proceedings. See AD0785968

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.

Provenance: Bombardier/Aero

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