Methods for Discrete Variable Structural Optimization

Abstract

Discrete design variables are encountered in most practical design applications. An overview of the optimization methods that can treat such design variables in their solution process is presented. Many times selection of an appropriate method depends on type of discrete variables and problem functions. Therefore, discrete design variable problems are classified into six different types. Methods suitable for each problem type are identified. Some recent applications of discrete variable optimization methods are described. Methods for structural optimization with available sections are discussed.