Effect of hardness of frictional materials on properties of ultrasonic motors

Author

DING, Qing-jun ; YANG, Lin ; Zhao, Chun-sheng

Author_Institution

Precision Driving Lab., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing

fYear

2008

fDate

5-8 Dec. 2008

Firstpage

434

Lastpage

438

Abstract

In this paper, PTFE composite, epoxy composite, phenolic composites, hard aluminum, cemented carbide as friction materials are respectively paired to ultrasonic motors, with the stator composed by phosphor bronze and piezoelectric ceramic. Mechanical properties and transient characteristics of ultrasonic motors are tested. The results show a monotonic increase in rotation speed, and a monotonic decrease in stalling torque with friction materials´ hardness. There is little effect of friction materials´ hardness on the transient performance of ultrasonic motors.

Keywords

friction; hardness; ultrasonic motors; Al; PTFE composite; cemented carbide; epoxy composite; frictional materials; hard aluminum; hardness; phenolic composites; phosphor bronze; piezoelectric ceramic; rotation speed; stalling torque; ultrasonic motors; Aluminum; Building materials; Ceramics; Composite materials; Friction; Mechanical factors; Phosphors; Piezoelectric materials; Stators; Testing; Ultrasonic motor; friction material; hardness; mechanical property; transient performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-2891-5

Type

conf

DOI

10.1109/SPAWDA.2008.4775826

Filename

4775826