Linear Oscillatory Actuator with Two Independently Drivable Movers

摘要

Electromagnetic linear oscillatory actuators are used in many devices because of high controllability and small size. In this paper, a linear oscillatory actuator with two movers that can be independently driven by applying same-phase or reverse-phase current, is proposed. The actuator has two different vibration characteristics, and it effectively generates vibrations with two frequencies. First, the dynamic characteristics are clarified through 2-D FEM. Next, analyzed results are compared with measured results. Finally, a hybrid mass damper using the proposed actuator is demonstrated as an application example.