Title :
Efficiency improvement of the friction drive in the ultrasonic motor using lubricant
Author :
Ishii, Takaaki ; Maeno, Seigen ; Nakamura, Kentaro ; Ueha, Sadayuki
Author_Institution :
Precision & Intelligence Lab., Tokyo Inst. of Technol., Kanagawa, Japan
Abstract :
An ultrasonic motor having very high driving efficiency has been realized. We use the nature of the lubricant, relationship between friction coefficient and pressure, to obtain sufficient frictional force change. The maximum efficiency was improved up to 72%, which is the record efficiency for this type of motors, by the newly proposed driving method, from 43% by the conventional ultrasonic motor
Keywords :
friction; lubrication; ultrasonic motors; 43 percent; 72 percent; friction coefficient; friction drive; frictional force change; lubricant; maximum efficiency; pressure; ultrasonic motor; Energy loss; Force control; Friction; Laboratories; Lubricants; Lubrication; Petroleum; Rotors; Stators; Vibration control;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991676
