Miniature Ultrasonic Linear Motor Capable of Applying Opposing Preload
Konferenz: ACTUATOR 2018 - 16th International Conference on New Actuators
25.06.2018 - 27.06.2018 in Bremen, Deutschland
Tagungsband: ACTUATOR 2018
Seiten: 4Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Tanoue, Y.; Morita, T. (The University of Tokyo, Kashiwa, Japan)
In recent years, ultrasonic motors have been expected to be applied for driving robot hands and walking assist robots because of their low-speed and high-torque characteristics. However, the sufficient output has not been yet obtained for these applications. Therefore, a high-power actuator with miniaturized structure is strongly required. In this research, we propose an ultrasonic linear motor that has a concave-shaped stator and it can be preloaded from opposing direction. It utilizes the L1 mode in the driving direction and the B1-2 mode in the preload direction. The stator was designed with FEM analysis and the driving characteristics were examined.