A non-resonant vibration linear motor based on displacement amplification structure

Author

Xu, Jing-jing ; Chen, Xi-fu ; Wang, Yin ; Huang, Wei-qing ; Pan, Lei

Author_Institution

State Key Lab. of Mech. Struct. Strength & Vibration, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2011

fDate

9-11 Dec. 2011

Firstpage

196

Lastpage

199

Abstract

In order to reduce the effect of the mover surface roughness on the piezoelectric linear motor performance, a non-resonant vibration linear motor based on displacement amplification structure has been investigated. The moter structure was designed in which a lever mechanism was used to achieve amplification of the piezoelectric stack vibration amplitude. The stack vibration amplitude was amplified by the lever and then transferred to the two ends of the driving foot whose motion form an elliptical trajectory at the top of the driving foot. A prototype was made according to analysis of the operating principle of the motor. The experimental results show that in the frequency range 1300-2200 Hz the maximum thrust force of the motor is 0.3N, the maximum non-loaded velocity of the motor is 3.2mm/s.

Keywords

linear motors; piezoelectric motors; surface roughness; vibrations; displacement amplification structure; driving foot; elliptical trajectory; frequency 1300 Hz to 2200 Hz; lever mechanism; motor maximum nonloaded velocity; motor maximum thrust force; mover surface roughness effect; nonresonant vibration piezoelectric linear motor; piezoelectric stack vibration amplitude; velocity 3.2 mm/s; Fasteners; Foot; Force; Friction; Stators; Trajectory; Vibrations; Experimental study; Lever structure; Non-resonant vibration; Piezoelectric linear motor; Sturcture design;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2011 Symposium on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-1075-8

Type

conf

DOI

10.1109/SPAWDA.2011.6167225

Filename

6167225