Hybrid Rocket Design Using Pairwise Ranking Surrogate-assisted Differential Evolution

Abstract

This study applies a new surrogate-assisted evolutionary algorithm, CHDE+ELDR, to a hybrid rocket engine design problem. CHDE+ELDR combines CHDE, a constraint-handling evolutionary algorithm, and ELDR, a pairwise ranking surrogate model. The experiment compares CHDE+ELDR with CHDE without a surrogate model. The experimental results indicate that CHDE+ELDR achieves better solutions than the conventional method.