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Numerical study for nonlocal vibration of orthotropic SWCNTs based on Kelvin's model

机译:基于开尔文模型的正交各向异性单壁碳纳米管非局部振动的数值研究

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摘要

This research deals with the study of the orthotropic vibrational features of single-walled carbon nanotubes according to Kelvin's model and to check the accuracy of the models, the results have been compared with earlier modeling/simulations. Obtaining rough approximations of the natural frequencies of CNTs using continuum equations are still a common procedure, even at high harmonics. The effects of different physical and material parameters on the fundamental frequencies are investigated for zigzag and chiral single-walled carbon nanotubes invoking Kelvin's theory. By using nonlocal Kelvin's model, the fundamental natural frequency spectra for two forms of single-walled carbon nanotubes (SWCNTs) have been calculated. The influence of frequencies with nonlocal parameters and bending rigidity are investigated in detail for these tubes. Computer software MATLAB is utilized for the frequencies of SWCNTs and current results shows a good stability with comparison of other studies.
机译:这项研究根据开尔文(Kelvin)模型研究了单壁碳纳米管的正交各向异性振动特征,并检查了模型的准确性,并将结果与​​早期的建模/仿真进行了比较。即使在高次谐波下,使用连续方程也可以得到碳纳米管固有频率的粗略近似值。对于采用Kelvin理论的之字形和手性单壁碳纳米管,研究了不同物理和材料参数对基频的影响。通过使用非本地开尔文模型,已计算出两种形式的单壁碳纳米管(SWCNT)的基本自然频谱。对于这些管,详细研究了频率与非局部参数和弯曲刚度的影响。计算机软件MATLAB用于SWCNT的频率,目前的结果与其他研究相比具有很好的稳定性。

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  • 来源
    《Advances in Concrete Construction》 |2020年第3期|301-312|共12页
  • 作者

  • 作者单位

    Govt Coll Univ Faisalabad Dept Math Faisalabad 38000 Pakistan;

    Govt Coll Univ Faisalabad Dept Math Faisalabad 38000 Pakistan|Univ Djillali Liabes Sidi Bel Abbes Algeria Fac Technol Dept Civil Engn Mat & Hydrol Lab Sidi Bel Abbes Algeria;

    King Fahd Univ Petr & Minerals Dept Civil & Environm Engn Dhahran 31261 Saudi Arabia;

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

    SWCNTs; wave propagation approach; Kelvin Model; bending rigidity;

    机译:碳纳米管;波传播方法开尔文模型弯曲刚度;

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