Free vibration for an electromechanical integrated harmonic piezodrive system

Article type: Research Article

Authors: Xu, Lizhong^{a; *} | Li, Huaiyong^a

Affiliations: [a] Mechanical Engineering Institute, Yanshan University, Qinhuangdao, Hebei, China

Correspondence: [*] Corresponding author: Lizhong Xu, Mechanical Engineering Institute, Yanshan University, Qinhuangdao 066004, Hebei, China. E-mail: [email protected]

Abstract: The Authors propose an electromechanical integrated harmonic piezodrive system in which the piezodrive principle is combined with the harmonic drive and the movable tooth drive principles. The free vibration behavior of the flexible ring has important effects on operating performance of the drive system. Here, the dynamic equations for the harmonic piezodrive system are deduced. The natural frequencies and dynamic displacements of the drive system are investigated. Results show that a large length of the flexible ring, a small thickness of the flexible ring should be selected, and the flexible ring should be made with Cu in order to obtain better operating behavior of the drive system. These results are useful in design and manufacture of the drive system.

Keywords: Electromechanical integrated, harmonic piezodrive, dynamic displacement, natural frequency

DOI: 10.3233/JAE-131663

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 42, no. 2, pp. 269-282, 2013