Abstract

AbstractThis paper considers materials for the movers, the volume ratio of the stator and of the mover, and the structure of the mover in a cylindrical moving iron‐type linear oscillatory actuator (LOA) having a permanent magnet. As a result, we obtain the following: the static thrust characteristics are evaluated on two movers: movers P and S are made of a permendur and a stainless steel, respectively. It is clarified that the static thrust of the mover P is 30 percent larger than that of the mover S; it is suggested that the structure of the mover P should be improved to eliminate a “lump” in the static thrust‐displacement curve due to the step on the mover, and which disturbs the smooth motion of the LOA.

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