Title :
A large thrust linear ultrasonic motor using longitudinal and flexural modes of rod-shaped transducer
Author :
Li, Chaodong ; Zhao, Chunsheng
Author_Institution :
Res. Center of Ultrasonic Motors, NUAA, China
Abstract :
A new type of linear ultrasonic motor is proposed in order to obtain large thrust of the motor. The system operates simultaneously in two modes that produce mutually orthogonal components of motion. Thus, elliptical motion at the contact surface with the guide is obtained. This new form of the construction produces large output power, bidirectional motion and large holding force without power. The results tested from the prototype motor exhibited a maximum thrust of 11 N, a maximum speed of 0.5 m/s, a maximum output power of 1.4 W, and a maximum holding force of 20 N. This motor will be expected to become a low cost and high efficiency linear motor when one improves it further
Keywords :
linear motors; piezoelectric transducers; ultrasonic motors; vibrations; 0.5 ms-1; 1.4 W; bidirectional motion; contact surface; elliptical motion; flexural modes; holding force; large thrust linear ultrasonic motor; longitudinal modes; maximum holding force; maximum output power; maximum speed; mutually orthogonal components; prototype motor; rod-shaped transducer; Chaos; Costs; Foot; Friction; Piezoelectric transducers; Power generation; Prototypes; Robotics and automation; Testing; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762242
