Optimization

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7

Multiobjective Optimization

7.1 Introduction

In previous chapters, optimization problems with a single objective function

were discussed and these problems were with or without constraints. Typical

single-variable objective functions are cost minimization, efciency maximiza-

tion, weight minimization, and so on. The solution to single-variable optimiza-

tion problems results in a single point in the design space and the corresponding

objective function value at that point gives the minimum value of the function.

In the multiobjective optimization problem, two or more objective func-

tions are to be simultaneously optimized. For example, t