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A linear piezoelectric actuator with the parasitic motion of equilateral triangle flexure mechanism

机译：具有等边三角形弯曲机构的寄生运动的线性压电致动器

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摘要

A parasitic type piezoelectric actuator with an equilateral triangle flexure mechanism is proposed and investigated to achieve large-stroke linear motion. Right-circular flexure hinges with different thicknesses (t(1) and t(2)) are utilized in the design of the equilateral triangle flexure mechanism which is able to generate parasitic motion. The working principle is analyzed and illustrated by the theoretical simulation and finite element method (FEM) simulation. A prototype is manufactured to study the performance of proposed parasitic type actuator, together with an experimental system. Experiments indicate that the maximum stepping displacement is Delta L = 9.00 mu m in the case that input voltage U-e = 150 V; the minimum stepping displacement Delta L = 0.24 mu m is achieved under U-e = 60 V; the maximum speed is V-s = 180 mu m s(-1); the largest output force is F = 106.3 g under that input frequency f = 1 Hz and U-e = 100 V. This study demonstrates the feasibility of symmetrical triangle flexure mechanisms in the design of parasitic type piezoelectric actuators with large working stroke.
机译：提出并研究了具有等边三角形弯曲机构的寄生型压电致动器以实现大行程线性运动。具有不同厚度（T（1）和T（2））的右圆形挠曲铰链用于设计能够产生寄生运动的等边三角形弯曲机构。通过理论模拟和有限元方法（FEM）模拟分析和说明了工作原理。制造原型以研究提出的寄生型致动器的性能以及实验系统。实验表明，在输入电压U-E = 150 V的情况下，最大步进位移是ΔL=9.00μm;在U-E = 60 V下实现最小步进位移ΔL=0.24μm;最大速度为V-S = 180 mu M S（-1）;在该输入频率F = 1 Hz和U-E = 100 V的情况下，最大输出力是F = 106.3g。该研究表明了对称三角形弯曲机制在具有大型工作冲程的寄生型压电致动器设计中的对称三角形弯曲机制的可行性。

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  • 来源
    《Smart Materials & Structures》 |2020年第1期|共7页
  • 作者

    Li Jianping; Chen Shichu; Zhao Gai; Wen Jianming; Wan Nen;

  • 作者单位

    Zhejiang Normal Univ Inst Precis Machinery &

    Smart Struct Coll Engn Jinhua 321004 Zhejiang Peoples R China;

    Zhejiang Normal Univ Inst Precis Machinery &

    Smart Struct Coll Engn Jinhua 321004 Zhejiang Peoples R China;

    Nanjing Univ Aeronaut &

    Astronaut State Key Lab Mech &

    Control Mech Struct Nanjing 210016 Peoples R China;

    Zhejiang Normal Univ Inst Precis Machinery &

    Smart Struct Coll Engn Jinhua 321004 Zhejiang Peoples R China;

    Zhejiang Normal Univ Inst Precis Machinery &

    Smart Struct Coll Engn Jinhua 321004 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 智能材料;
  • 关键词

    piezoelectric; actuator; parasitic motion; flexure mechanism; symmetrical structure;

    机译：压电;执行器;寄生运动;弯曲机制;对称结构;

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