2094. Research on a symmetric non‑resonant piezoelectric linear motor

Mengxin Sun1, Yin Wang2, Weiqing Huang3, Qian Lu4

1, 3, 4State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

2Huaqiao University, Xiamen, Fujian Province, 361021, China

3Corresponding author

E-mail: 1mxsun@nuaa.edu.cn, 2mehwq@nuaa.edu.cn, 3wangyin_0816@live.cn, 4155381343@qq.com

Received 2 November 2015; received in revised form 20 May 2016; accepted 28 June 2016

DOI https://doi.org/10.21595/jve.2016.16599

Abstract. Nowadays, piezoelectric linear actuators draw wide attention of researchers around world as its advantages of simple structure, high precision and rapid response. To improve the performance of the non-resonant piezoelectric motor, a symmetric piezoelectric linear motor driven by double-foot is studied in the paper. The vibration model of the stator is established based on the structure and the working mechanism of motor. Then guide mechanism and preload device is designed and a prototype is fabricated to verify the feasibility of structure. The performances of motor under different driving signal are tested in experiment. By applying three-phase square‑triangular waves signal and four-phase sine waves signal of peak to peak value 100 V with 50 V offset and frequency of 100 Hz, the speed of prototype reaches 733 μm/s and 667 μm/s and the maximum thrust is 8.34 N and 6.31 N respectively.

Keywords: piezoelectric linear motor, performance comparison, piezoelectric stack.

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Cite this article

Sun Mengxin, Wang Yin, Huang Weiqing, Lu Qian Research on a symmetric non‑resonant piezoelectric linear motor. Journal of Vibroengineering, Vol. 18, Issue 5, 2016, p. 2916‑2925.

 

JVE International Ltd. Journal of Vibroengineering. Aug 2016, Vol. 18, Issue 5. ISSN 1392-8716