Title: Parallel Decomposition for Alternative Loads in Structural Optimization
Abstract: OverviewStructural optimization based on the integrated optimum structural design approach often gives rise to large optimization problems. This is because the optimization problem must include as design variables all the design shape variables (i.e the areas or thicknesses of the various elements of the members of the structure) as well as the response variables (i.e the nodal displacements and stresses). The difficulty of the solution of large optimization problem is increased when the structure is subject to more than one load condition, which is the case in most engineering design problems. Here, the number of response variables, of equality constraints of analysis, and of behavior constraints are multiplied by the number of load conditions considered. The computer memory may become insufficient in such problems. In order to alleviate this difficulty and in order to understand the behavior of a structure during the design for alternative loads, a decomposition technique based on the load conditions is presented. In this chapter we develop a new parallel decomposition method based on each load condition when the goal is optimization of structures subject to alternative loads.
Publication Year: 1989
Publication Date: 1989-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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