Linear Oscillatory Actuator with Dynamic Vibration Control

Abstract

Linear oscillatory actuator can produce high-speed rectilinear vibration efficiently, without motion converting mechanisms. However, we need to reduce the reaction force and moment caused by main vibration for its application.
So far, the method for vibration reduction that two moving elements of magnetic circuit are counter driven is reported, but it needs complicated construction for cylindrical models.
In order to solve this problem, we propose linear oscillatory actuator with dynamic vibration control as a new construction and describe its principle of operation. Furthermore, we evaluate the performances of the actuator by computer simulation and confirm them by a prototype.