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Structural Engineering and Mechanics
  Volume 60, Number 6, December25 2016 , pages 1079-1092
DOI: https://doi.org/10.12989/sem.2016.60.6.1079
 


Displacements of the flexible ring for an electromechanical integrated harmonic piezodrive system
Lizhong Xu, Huaiyong Li and Chong Li

 
Abstract
    In this paper, an electromechanical integrated harmonic piezodrive system is proposed. The operating principle of the drive system is introduced. The equation of the relationship between the displacements of the flexible ring and the rotating angle of the rotor is deduced. Using the equation, the displacements of the flexible ring for the drive system and their changes along with the system parameters are investigated. The results show that the displacements of the flexible ring changes periodically along with the rotation of the vibrator; there are abrupt changes in the displacements of the flexible ring at some points where there are abrupt changes in the number of the mesh teeth pair; the length of the flexible ring, the excitation voltage, and the speed ratio have obvious effects on the displacements of the flexible ring. The results are useful for the design of the drive system.
 
Key Words
    electromechanical integrated; piezodrive; flexible ring; Displacement; harmonic drive; movable tooth
 
Address
Lizhong Xu, Huaiyong Li and Chong Li: Mechanical Engineering Institute, Yanshan University, Qinhuangdao 066004, China
 

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