The contact mechanism of an ultrasonic motor

Author

Maeno, Takashi ; Tsukimoto, Takayuki ; Miyake, Akira

Author_Institution

Canon Inc., Tokyo, Japan

fYear

1990

fDate

6-8 Jun 1990

Firstpage

535

Lastpage

538

Abstract

The mechanical characteristics of a ring-type ultrasonic motor are clarified. The finite-element method (FEM, MSC/NASTRAN) was used to obtain the shape of the elliptic motion at the surface point of projections. The vibration mode of projections was measured by using an electrooptical displacement transducer made by Zimmer KG. The accuracy of the simulation was confirmed by comparing the calculated results with the measured results. The dynamic contact condition of a stator and a rotor was calculated by using the FEM (JNIKE3D). The simulated displacements, T-N (torque-rotating-speed) curve, loss power and efficiency are compared with the experimental results

Keywords

finite element analysis; piezoelectric motors; rotors; stators; FEM; T-N curve; contact mechanism; efficiency; elliptic motion; finite-element method; loss power; mechanical characteristics; ring-type; rotor; simulated displacements; stator; ultrasonic motor; vibration mode; Contacts; Displacement measurement; Finite element methods; Friction; Optical surface waves; Rotors; Springs; Stators; Ultrasonic variables measurement; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on

Conference_Location

Urbana-Champaign, IL

Print_ISBN

0-7803-0190-0

Type

conf

DOI

10.1109/ISAF.1990.200308

Filename

200308