The torque free phenomenon of ultrasonic motors

Author

Akiyama, Yuji ; Naruta, Tomokazu ; Yamashima, Yutaka ; Mosbar, Pascal

Author_Institution

Dept. of Eng., Electr. & Electron. Eng., Kanagawa Inst. of Technol., Atsugi

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

3691

Lastpage

3696

Abstract

Recently, the use of an ultrasonic motor (USM) has been improved as an in-the-car electric actuator with growth of the auto-industry. For example, it is Power window etc. It is because, the good drive in variable speed and which makes the small, lightweight, flat shape, and has a gear, brake, clutchpsilas functions are possible. However, there are three abnormal phenomena in this motor, and one of them is a torque free or out of phase phenomenon. In order to solve this phenomenon, in our Akiyama laboratory, it succeeded in the explication of the conventionally unknown torque free phenomenon, that by using of ATILA & GID softwarepsilas which the main subject will applied pzt-electric actuators was analyzed.

Keywords

automobiles; piezoelectric actuators; ultrasonic motors; ATILA software; Akiyama laboratory; GID software; auto-industry; in-the-car electric actuator; pzt-electric actuators; torque free phenomenon; ultrasonic motors; Actuators; Admittance; Circuit simulation; Deformable models; Gears; Power engineering and energy; Resonance; Resonant frequency; Torque; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4771417