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首页> 外文期刊>International journal of non-linear mechanics >Dynamic analysis of a dielectric elastomer-based microbeam resonator with large vibration amplitude
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Dynamic analysis of a dielectric elastomer-based microbeam resonator with large vibration amplitude

机译:具有较大振动幅度的基于介电弹性体的微束谐振器的动力学分析

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摘要

A non-linear vibration equation with the consideration of large amplitude, gas damping and excitation is developed to investigate the dynamic performance of a dielectric elastomer (DE)-based microbeam resonator. Approximate analytical solution for the vibration equation is obtained by applying parameterized perturbation method (PPM) and introducing a detuning variable. The analysis exhibits that active tuning of the resonant frequency of the resonator can be achieved through changing an applied electrical voltage. It is observed that increasing amplitude will increase the natural frequency while it will decrease the quality factor of the resonator. In addition, it is found that the initial pre-stretching stress and the ambient pressure can significantly alter the resonant frequency of the resonator. The analysis is envisaged to provide qualitative predictions and guidelines for design and application of DE-based micro resonators with large vibration amplitude.
机译:建立了考虑大振幅,气体阻尼和激励的非线性振动方程,以研究基于介电弹性体(DE)的微束谐振器的动态性能。通过应用参数化摄动方法(PPM)并引入失谐变量,可以获得振动方程的近似解析解。分析表明,可以通过改变施加的电压来实现谐振器的谐振频率的主动调谐。可以看出,增加幅度会增加固有频率,同时会降低谐振器的品质因数。另外,发现初始预拉伸应力和环境压力可以显着改变谐振器的谐振频率。设想该分析为具有大振动幅度的基于DE的微型谐振器的设计和应用提供定性预测和指导。

著录项

  • 来源
  • 作者

    C. Feng; L. Yu; W. Zhang;

  • 作者单位

    Department of Mechanical Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China,Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON, Canada N6A 5B9;

    School of Material and Chemical Engineering, Xi'an Technological University, Xi'an, Shaanxi 710032, China;

    Department of Mechanical Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China;

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

    Resonator; Large amplitude; Dielectric elastomer; Non-linear vibration;

    机译:谐振器;振幅大;介电弹性体;非线性振动;

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