Development of linear ultrasonic motor using beam and multilayer piezoelectric actuator

Author

Nakayasu, R. ; Aoyagi, Masahiro

Author_Institution

Grad. Sch. of Eng., Muroran Inst. of Technol., Muroran, Japan

fYear

2012

fDate

21-24 Oct. 2012

Firstpage

1

Lastpage

5

Abstract

A linear ultrasonic motor (LUSM) using two parallel beams and two multilayer piezoelectric actuators (MPAs) was developed. The two MPAs are fixed in alignment across the beams. The force and displacement generated by the MPAs are converted in the orthogonal direction by the deforming of the beams. Hence, when MPAs are driven by alternating voltages with π/2 phase difference, elliptical displacement motions are generated on the surface of beams. An object touching surfaces of beams can be transferred. Characteristics of the LUSM made as a trial had been obtained as the maximum speed of 41 mm/s and maximum thrust of 3.4 N at the operating voltage of 20 V_p-p.

Keywords

linear motors; piezoelectric actuators; ultrasonic motors; LUSM; MPA; beam deformation; beam piezoelectric actuator; elliptical displacement motion; linear ultrasonic motor; multilayer piezoelectric actuator; object touching surfaces; orthogonal direction; voltage 20 V; Acoustics; Force; Hysteresis motors; Laser beams; Measurement by laser beam; Structural beams; Voltage measurement; Linear actuator; Multilayer piezoelectric actuator; Ultrasonic motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2012 15th International Conference on

Conference_Location

Sapporo

Print_ISBN

978-1-4673-2327-7

Type

conf

Filename

6401996