Solving Engineering Optimization Problems Without Penalty

Abstract

This paper presents a constraint handling approach without the need to use a penalty function, namely Optimization Without Penalty (OWP). This approach is used on a recent optimization algorithm based on morphological filters, called Optimization by Morphological Filters (OMF). This work consists of providing a simple and effective constraint-handling approach without the necessity of the penalty for any considered optimization problem. The proposed approach is applied to 03 hard mathematical functions, 18 benchmark constraint functions presented in CEC 2010 competition on constrained real-parameter optimization, and 7 constrained engineering design problems reported in the specialized literature. According to the statistical comparison results, the performance of the OMF algorithm with OWP-based approach is better or highly competitive on most of the studied problems.