Abstract
This paper presents the useful technique to save the computation time in the optimization process of the genetic algorithm (GA). In this technique, genes are encoded for elements as their material information to avoid re-meshing caused by the movement of nodes. Furthermore, the process of the GA is divided into two steps because it requires much computation time to apply the GA for the whole region to be analyzed at once. The usefulness and the flexibility of this technique are verified through the comparison with the usual one when it is applied to an electromagnetic clutch and a solenoid to obtain the maximum attractive force.
