Research on high-frequency small-load fatigue testing device driven by piezoelectric actuator

Xiangli Zeng; Yue Wu; Zhigang Yang; Yanhu Shen; Lei Ma

doi:10.1063/1.5085851

Research on high-frequency small-load fatigue testing device driven by piezoelectric actuator

Rev Sci Instrum. 2019 Jul;90(7):076102. doi: 10.1063/1.5085851.

Authors

Xiangli Zeng¹, Yue Wu¹, Zhigang Yang¹, Yanhu Shen², Lei Ma¹

Affiliations

¹ School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China.
² College of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China.

PMID: 31370462
DOI: 10.1063/1.5085851

Abstract

A novel small-load fatigue testing device whose actuation resource is the piezoelectric material is proposed. The procedure of energy conversion and motion transfer is analyzed in detail. In the experiment by which the characteristic of the fatigue testing device is tested, the testing device works at resonance and the amplitude of the output could be up to 6.3 mm and output force is in the range of 0.6-2.5 N when the actuation frequency is higher than 100 Hz. The article presents the details of a piezoelectric device that is superior not only in smaller output force and higher testing frequency but also in high resolution, quick response, small scale, no noise, and anti-electromagnetic interference. The research about this kind of testing device benefits increasing the testing efficiency and development of a new material.