抄録
Single phase AC electromagnets are used often in electromagnetic devices as a linear actuator. It is difficult to analyze the static attractive force characteristics of single phase AC electromagnet accurately because its model is a combination of the electrical, mechanical, and magnetic systems. In this paper, a new method to obtain the static attractive force characteristics of the AC electro- magnets by the numerical analysis taking into account the motion of the armature core attracted by the pulsating magnetic force is described. The usefulness of the new method is clarified by comparing calculated and measured static force characteristics and motion of the armature.
