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首页> 外文期刊>Journal of thermal stresses >Shock-induced nonlocal coupled thermoelasticity analysis (with energy dissipation) in a MEMS/NEMS beam resonator based on Green-Naghdi theory: A meshless implementation considering small-scale effects
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Shock-induced nonlocal coupled thermoelasticity analysis (with energy dissipation) in a MEMS/NEMS beam resonator based on Green-Naghdi theory: A meshless implementation considering small-scale effects

机译：基于Green-Naghdi理论的MEMS / NEMS光束谐振器中的激振非局部耦合热弹性分析（带能量耗散）：考虑小规模效应的无网格实现

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In this article, a meshless method based on the generalized finite difference (GFD) method is developed for coupled thermoelsaticity analysis (with energy dissipation) considering small-scale effects in a micro-electromechanical-systemsano-electromechanical-systems beam resonator. The Green-Naghdi theory of the generalized coupled thermoelasticity and nonlocal Rayleigh beam theory are utilized for dynamic analysis of a microanobeam resonator subjected to thermal shock loading. The small-scale effects and energy dissipation are considered to derive the governing equations for both displacement and temperature fields. The governing equations are discretized in the Laplace domain using GFD method. To find the dynamic and transient behaviors of fields' variables in time domain, an inversion Laplace technique is utilized, which is called the Talbot method. The effects of some parameters such as small-scale parameter and height of the microanobeam on the dynamic behaviors of temperature and lateral deflection are discussed in detail.
机译：在本文中，开发了一种基于广义有限差分（GFD）方法的无网格方法，用于考虑微机电系统/纳米机电系统束谐振器中的小规模效应的耦合热弹性分析（带能量耗散）。广义耦合热弹性的Green-Naghdi理论和非局部瑞利梁理论被用于对热冲击载荷作用下的微/纳贝谐振器进行动态分析。考虑到小尺度效应和能量耗散，可以导出位移场和温度场的控制方程。使用GFD方法在Laplace域中离散控制方程。为了在时域中查找字段变量的动态和瞬态行为，采用了拉普拉斯反演技术，称为Talbot方法。详细讨论了诸如小尺度参数和微米/纳米锥的高度之类的一些参数对温度和横向挠度动力学行为的影响。

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