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Parallel Algorithms for Structural Optimization Under Dynamic Loading

by Hojjat Adeli, Ohio State Univ, Columbus, OH, USA,
Osama Kamal, Ohio State Univ, Columbus, OH, USA,



Document Type: Proceeding Paper

Part of: Parallel and Distributed Processing in Structural Engineering

Abstract:

Parallel algorithms and strategies are outlined for optimal design of frame structures subjected to dynamic earthquake loading. Parallelism is extracted in six areas: substructuring of the total domain, solution of linear equations, modal analysis, temporal solution, mathematical optimization, and postprocessing. A new formulation for the optimization problem is developed on the basis of the virtual work method. A hybrid optimization approach is adopted to exploit the merits of both Geometric Programming and Feasible Directions optimization techniques. The solution algorithm is centered around a new parallel and concurrent architecture that utilizes the multi-processing capabilities of shared memory computers such as the Encore Multimax.

Subject Headings: Dynamic loads | Algorithms | Seismic loads | Computer programming | Earthquakes | Earthquake resistant structures | Structural dynamics

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