Author(s)

C.P. Pantelides & S.-R. Tzan

Abstract

A modified iterated simulated annealing (MISA) method is presented for optimal design of structural systems. The method uses a random sequence of designs to determine the optimal one. Automatic reduction of the feasible region and sensitivity analysis for the design variables are also used. Comparisons between classical optimization methods and MISA show that the letter can provide accurate results even when infeasible initial designs are attempted, and is advantageous for problems with dynamic constraints. Introduction Automated optimization designs originated from many fields and several methods have been proposed in recent years (Haug and Arora/ and Schmit %). In 1983 Kirkpatrick et al? combined statistical mechanics with optimization and introduced simulated annealing. The simulated annealing method

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