Theoretical and experimental studies for a new disc-type ultrasonic stator

Author

Huang, Guo-Shing ; Juang, Puu-An ; Gu, Da-wei

Author_Institution

Dept. of Electron. Eng., Nat. Chin-Yi Inst. of Technol., Taichung, China

fYear

2005

fDate

10-12 July 2005

Firstpage

428

Lastpage

433

Abstract

In this paper, a new disc-type ultrasonic motor is introduced. Its stator is a circular disc with a bonded PZT plate serving as a driver. The rotor is driven by a lateral elliptical motion occurring at the stator edge. An analytical formulation of the lateral elliptic motion based on the wave equations is derived to show the operation principles. The driving frequency, the force and the revolution speed induced from the lateral elliptic motion are obtained following the analytical derivation. The relationship between the new disc-type ultrasonic stator and its boundary condition is discussed. A laser vibrometer is used to verify the analytical model. The result proves that the stator with three non-equal-triangular fixed points (120deg-90deg-150deg) near the edge achieve the best performance.

Keywords

measurement by laser beam; piezoelectric devices; rotors; stators; ultrasonic motors; vibration measurement; wave equations; bonded PZT plate; circular disc; disc-type ultrasonic stator; driver; driving frequency; laser vibrometer; lateral elliptic motion; lateral elliptical motion; nonequal-triangular fixed points; rotor; stator edge; wave equations; Analytical models; Bonding; Boundary conditions; Frequency; Laser modes; Motion analysis; Partial differential equations; Rotors; Stators; Vibrometers;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics, 2005. ICM '05. IEEE International Conference on

Conference_Location

Taipei

Print_ISBN

0-7803-8998-0

Type

conf

DOI

10.1109/ICMECH.2005.1529295

Filename

1529295