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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Modeling the effects of material properties on the pull-in instability of nonlocal functionally graded nano-actuators
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Modeling the effects of material properties on the pull-in instability of nonlocal functionally graded nano-actuators

机译：模拟材料性能对非局部功能梯度纳米驱动器的拉入不稳定性的影响

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摘要

Dynamic pull-in behavior of nonlocal functionally graded nano-actuators by considering Casimir attraction is investigated in this paper. It is assumed that the nano-bridge is initially at rest and the fundamental frequency of nano-structure as a function of system parameters is obtained asymptotically by Iteration Perturbation Method (IPM). The effects of actuation voltage, nonlocal parameter, properties of FGM materials and intermolecular force on the dynamic pull-in behavior are studied. It is exhibited that two terms in series expansions are adequate to achieve the acceptable approximations for fundamental frequency as well as the analytic solution. Comparison between the obtained results based on the asymptotic analysis and the reported experimental and numerical results in the literature, verify the effectiveness of the asymptotic analysis.
机译：本文研究了考虑卡西米尔吸引力的非局部功能梯度纳米驱动器的动态拉入行为。假设纳米桥最初处于静止状态，并且通过迭代扰动法（IPM）渐近获得了纳米结构的基频作为系统参数的函数。研究了驱动电压，非局部参数，FGM材料的性能以及分子间力对动态拉入行为的影响。结果表明，两个级数展开式足以满足基本频率和解析解的要求。将基于渐近分析的结果与文献中报道的实验和数值结果进行比较，证明了渐近分析的有效性。

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