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An inertial piezoelectric actuator with miniaturized structure and improved load capacity

机译：具有小型化结构的惯性压电致动器和提高负载能力

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摘要

An inertial actuator that improves load capacity within a miniaturized structure has drawn wide attention. This work proposes an inertial piezoelectric linear actuator and investigates a method that improves its load capacity. The structure and operational principle of the actuator are introduced. A dynamic model of the system is established that simulates the stepping characteristics. The dominant parameters affecting load capacity are discussed in detail. A prototype was manufactured and its main performance features tested. The experimental results confirm that the proposed actuator achieves a load capacity of 3.65 N, a resolution of 0.47 mu m, and a speed of 6.15 mm s(-1), despite its compact size of Phi 9 mm x 27 mm. The actuator has an improved load capacity given its smaller configuration than those reported in the literature. The model established provides a theoretical guide to the design of similar inertial actuators and may be used to predict and evaluate their load capacity.
机译：一种惯性执行器，可以在小型化结构内提高负载能力。该工作提出了一种惯性压电线性致动器，并研究了提高其负载能力的方法。介绍了执行器的结构和操作原理。建立了系统的动态模型，用于模拟踩踏特性。详细讨论影响负载能力的主导参数。制造原型并测试其主要性能特征。实验结果证实，该致动器的负载能力为3.65 n，分辨率为0.47μm，速度为6.15mm s（-1），尽管其紧凑的PHI 9mm×27mm。致动器具有较小的负载能力，其配置小于文献中报告的配置。该模型建立了类似惯性致动器的设计的理论指南，并且可以用于预测和评估其负载能力。

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  • 来源
    《Smart Materials & Structures》 |2019年第5期|共11页
  • 作者

    Shao Yan; Shao Shubao; Xu Minglong; Song Siyang; Tian Zheng;

  • 作者单位

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength &

    Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength &

    Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength &

    Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength &

    Vibrat Mech Struct Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength &

    Vibrat Mech Struct Xian 710049 Shaanxi 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 material; inertial impact driving principle; dynamical model; high load capacity;

    机译：压电材料;惯性冲击驱动原理;动态模型;高负荷能力;

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