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Meshing Drive Mechanism of Double Traveling Waves for Rotary Piezoelectric Motors

Author

Listed:
  • Dawei An

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

  • Weiqing Huang

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

  • Weiquan Liu

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

  • Jinrui Xiao

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

  • Xiaochu Liu

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

  • Zhongwei Liang

    (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China)

Abstract

Rotary piezoelectric motors based on converse piezoelectric effect are very competitive in the fields of precision driving and positioning. Miniaturization and larger output capability are the crucial design objectives, and the efforts on structural modification, new materials application and optimization of control systems are persistent but the effectiveness is limited. In this paper, the resonance rotor excited by stator is investigated and the meshing drive mechanism of double traveling waves is proposed. Based on the theoretical analysis of bending vibration, the finite element method (FEM) is used to compare the modal shape and modal response in the peripheric, axial, and radial directions for the stator and three rotors. By analyzing the phase offset and vibrational orientation of contact particles at the interface, the principle of meshing traveling waves is discussed graphically and the concise formula obtaining the output performance is summarized, which is analogous with the principles of gear connection. Verified by the prototype experimental results, the speed of the proposed motor is the sum of the velocity of the stator’s contact particle and the resonance rotor’s contact particle, while the torque is less than twice the motor using the reference rotor.

Suggested Citation

  • Dawei An & Weiqing Huang & Weiquan Liu & Jinrui Xiao & Xiaochu Liu & Zhongwei Liang, 2021. "Meshing Drive Mechanism of Double Traveling Waves for Rotary Piezoelectric Motors," Mathematics, MDPI, vol. 9(4), pages 1-17, February.
    • Handle: RePEc:gam:jmathe:v:9:y:2021:i:4:p:445-:d:504283
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    References listed on IDEAS

    as
    1. Xifu Chen & Qian Lu & Weiqing Huang & Yin Wang, 2018. "Working Mechanism of Nonresonance Friction in Driving Linear Piezoelectric Motors with Rigid Shaking Beam," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-10, November.
    2. Madiha Sana & Muhammad Mustahsan, 2019. "Finite Element Approximation of Optimal Control Problem with Weighted Extended B-Splines," Mathematics, MDPI, vol. 7(5), pages 1-12, May.
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