Title :
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
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;
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
