Resonant Modes of Piezoelectric Disc Structure and their Application in Micro Ultrasonic Motors

Abstract:

Article Preview

This article describes out-of-plane resonant modes of a piezoelectric disc structure. A new type of micro ultrasonic motor using the resonant mode B11 (Bmn, where m is the number of nodal circles, n is the number of nodal diameters) has been studied. The motor is a wobble-type motor. The stator of the motor uses this structure, consisting of a hollow metal cylinder and a piezoelectric ceramic disc bonded with a metal one, which is excited in the vibration mode by two electrical signals. The stator exhibits wobble displacement and transfers rotation to a rod rotor by the cylinder. The behavior of the stator has been simulated by the finite element analysis. The simulation results have been checked with laser scanning by a laser scanning vibrometer. The article closes with the introduction of the new micro ultrasonic motors based on this vibration mode with high rotation speed.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

345-347

DOI:

10.4028/www.scientific.net/KEM.336-338.345

Citation:

L. Ma et al., "Resonant Modes of Piezoelectric Disc Structure and their Application in Micro Ultrasonic Motors", Key Engineering Materials, Vols. 336-338, pp. 345-347, 2007

Online since:

April 2007

Export:

Price:

$38.00

[1] S. Ueha, et al.: Ultrasonic Motors Theory and Applications (Clarendon Press, Oxford 1993).

[2] K. Uchino: Piezoelectric Actuators and Ultrasonic Motors (Kluwer, Boston 1997).

[3] R. Carotenuto, et al.: IEEE Trans. Ultrason., Ferroelect., Freq. Contr. Vol 45, No. 5 (1998), p.1427.

[4] F.L. Wen, C.Y. Yen and M.S. Ouyang: Ultrasonics Vol 41 (2003), p.437.

[5] P.A. Juang and H.J. Hardtke: Sensor. Actuat. A-Phys. Vol 94 (2001).

In order to see related information, you need to Login.