It is difficult for the ultrasonic motor to change the preload while driving. Then, an ultrasonic actuator that was able to electrically control a preload was developed by combining piezoelectric motor with clutch function in this study. In this paper, a hybrid actuator system combining an electromagnetic motor (EMM) with a piezoelectric motor was proposed and examined. The driving range can be widened by combining the both actuators with a different characteristic. As one of results, a risetime of revolution can be shortened by assisting with the ultrasonic motor at the start of an EMM driving in this system.
クラッチ機能を備えた超音波アクチュエータの構成（第5報）電磁モータとのハイブリット化の試み
symjspe2011S_935_2011.pdf
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