静电微梁器件的降阶模型及其动态Pull-in不稳定性研究

发布时间：2018-06-23 07:50

  本文选题：Pull-in不稳定性 + 模态分析　； 参考：《仪表技术与传感器》2016年05期

【摘要】：微器件的设计需要利用计算机技术快速准确仿真其动态特性。以器件中结构件的模态振型函数作为基函数,结合Galerkin映射建立静电-结构耦合微梁器件的自由度缩减模型,该降阶模型能考虑初始轴向载荷、大变形几何非线性效应对器件基频及动态特性的影响。在Simulink~汶中建立单模态模型,并对器件的Pull-in过程进行动态仿真,分析了有阻尼和无阻尼情况下,静电器件动态Pull-in的分叉现象。
[Abstract]:The design of microdevices requires the use of computer technology to quickly and accurately simulate its dynamic characteristics. Taking the modal mode function of the structure as the basis function and combining the Galerkin map, the reduced degree of freedom model of the electrostatic-structural coupling microbeam device is established. The reduced order model can take into account the initial axial load. The effect of geometric nonlinear effect of large deformation on the fundamental frequency and dynamic characteristics of the device. A single mode model is established in Simulink- Wen, and the dynamic simulation of the pull-in process of the device is carried out. The bifurcation phenomenon of the electrostatic device under the condition of damping and no damping is analyzed.
【作者单位】： 福州大学机械工程及自动化学院;
【基金】：国家自然科学基金资助项目(51205062) 福建省自然科学基金资助项目(2013J01182)
【分类号】：TH703
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本文编号：2056400