Establishing the dynamic transfer function of a shaft-driving type ultrasonic motor by system identification

Author

Mou, Shann-Chyi ; Ouyang, Minsun

Author_Institution

Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

1

fYear

2004

fDate

15-19 June 2004

Firstpage

302

Abstract

In this study, the experimental method for a novel shaft-driving type ultrasonic motor was developed. A stator of motor is a commercial available buzzer disk consisted of piezoelectric ceramic membrane bonded on a nickel alloy circular sheet. Via electrical-mechanical coupling characteristic, ultrasonic motor´s driving mechanism is generated by 3 progressive bending waves reflected by hard screw constraints. Based on the design of signal measurement system and the basis of system identification theory, the dynamic transfer function was created which corresponds in converse piezoelectric effect using a single phase AC voltage power. The result exhibits the better estimation in dynamic transfer function than that of theoretical method.

Keywords

bending; fasteners; identification; nickel alloys; piezoceramics; shafts; sheet materials; transfer functions; ultrasonic motors; dynamic transfer function; electrical-mechanical coupling; nickel alloy circular sheet; piezoelectric buzzer disk; piezoelectric ceramic membrane; piezoelectric effects; progressive bending waves; screw constraints; shaft driving type ultrasonic motor; signal measurement system; single phase AC voltage power; system identification theory; ultrasonic motor driving mechanism; Biomembranes; Bonding; Ceramics; Character generation; Couplings; Fasteners; Nickel alloys; Stators; System identification; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on

Print_ISBN

0-7803-8273-0

Type

conf

DOI

10.1109/WCICA.2004.1340579

Filename

1340579