Wave propagation characteristics in fluid-conveying double-walled nanotubes with scale effects
Wave propagation characteristics in fluid-conveying double-walled nanotubes with scale effects
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DOI：
10.1016/j.commatsci.2010.01.034
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发表时间：
2010-04
影响因子：
3.3
通讯作者：
Yi-Ze Wang;Fengming Li;K. Kishimoto
中科院分区：
文献类型：
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作者：
Yi-Ze Wang;Fengming Li;K. Kishimoto
本文研究了弹性波在流体输送双壁碳纳米管中的传播特性。应用非局部连续统理论来讨论小尺度效应下的色散关系。将双管的相互作用与范德华相互作用压力一起考虑，推导出双壁欧拉-伯努利梁模型的弯曲波方程。提出了不同波数和流体速度下的频率和振幅比的特性。从这项工作中可以看出，在研究流体输送双壁纳米管中的弹性波传播时应考虑小尺度效应。
In this paper, the propagation characteristics of the elastic wave in fluid-conveying double-walled carbon nanotubes are investigated. The nonlocal continuum theory is applied to discuss the dispersion relation with small scale effects. The interaction of the double tubes is considered with the van der Waals interaction pressure and the equation of the flexural wave for the double-walled Euler–Bernoulli beam model is derived. The properties of the frequency and the amplitude ratio are proposed with different wave numbers and fluid velocities. From this work, it can be observed that the small scale effects should be considered in the investigation of the elastic wave propagation in fluid-conveying double-walled nanotubes.