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首页> 外文期刊>Mechanical systems and signal processing >Semi-analytical modeling and experimental evaluation on a novel standing wave rotary piezoelectric actuator driven by single-phase signal
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Semi-analytical modeling and experimental evaluation on a novel standing wave rotary piezoelectric actuator driven by single-phase signal

机译:单相信号驱动的新型驻波旋转压电致动器的半分析模型与实验评价

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摘要

Single-phase driven piezoelectric actuators have attracted more and more attention due to their advantages of simple driving circuit, more flexible design and more compact structure. However, the single-phase driven piezoelectric actuators generally have some problems, such as no common node for clamping, the steering function cannot be realized, and structural form cannot be directly integrated with the host system, seriously limiting their applications. In order to solve the above problems, a novel standing wave rotary piezoelectric actuator driven by single-phase signal is proposed in this study. The stator of the proposed piezoelectric actuator is mainly composing of a piezoelectric composite beam and a ring with driving teeth and stimulated to produce two different vibration modes. Each vibration mode of the stator can be independently utilized to drive upper and lower rotors, which simultaneously move in the opposite directions through friction, and the steering function can be realized by switching the two vibration modes. To reveal the dynamic characteristic of the stator, its electromechanical coupling dynamic model is first developed by using the transfer matrix method. In addition, the vibration measurements are conducted on the stator prototype to confirm the correctness of the developed electromechanical coupling dynamic model. Finally, experimental investigations are carried out to evaluate the output performances of the actuator prototype, and experimental results verified the feasibility of the structure design of the proposed piezoelectric actuator and the correctness of its operating principle.
机译:由于其简单的驱动电路,设计更柔韧和更紧凑的结构,单相驱动压电执行器引起了越来越多的关注。然而,单相驱动的压电致动器通常具有一些问题,例如没有用于夹紧的公共节点,不能实现转向函数,并且结构形式不能与主机系统直接集成,严重限制它们的应用。为了解决上述问题,在该研究中提出了一种由单相信号驱动的新型驻波旋转压电致动器。所提出的压电致动器的定子主要由压电复合梁和带有驱动齿的环形构成并刺激以产生两种不同的振动模式。定子的每个振动模式可以独立地利用以驱动上转子和下转子,该转子通过摩擦在相反方向上同时移动,并且可以通过切换两个振动模式来实现转向功能。为了揭示定子的动态特性,首先通过使用传递矩阵法开发其机电耦合动态模型。另外,振动测量在定子原型上进行,以确认发发机电耦合动态模型的正确性。最后,进行了实验研究以评估执行器原型的输出性能,实验结果验证了所提出的压电执行器结构设计的可行性及其操作原理的正确性。

著录项

  • 来源
    《Mechanical systems and signal processing》 |2022年第1期|108177.1-108177.23|共23页
  • 作者单位

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Yudao 29 Nanjing 210016 China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Yudao 29 Nanjing 210016 China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Yudao 29 Nanjing 210016 China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Yudao 29 Nanjing 210016 China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Yudao 29 Nanjing 210016 China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Piezoelectric actuator; Single-phase signal; Torsional vibration; Bending vibration; Transfer matrix method;

    机译:压电执行器;单相信号;扭转振动;弯曲振动;传输矩阵方法;

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