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A non-local modeling for the influence of fluid forces on vibration characteristics of carbon nanotubes

机译:流体力影响对碳纳米管振动特性的非局部建模

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This paper studies the effects of fluid forces and magnetic fields on the vibration characteristics of single-walled carbon nanotube (SWCNT). The force of the fluid on the SWCNT tube wall is derived by using the Hamilton's variation principle, and the Lorentz magnetic force obtained from Maxwell's relationship. The governing equations of motion are based on the non-local beam model under the action of fluid and longitudinal magnetic field. Moreover, in the present investigation, an analytical approach is also proposed to study the effect of fluid, small-scale effect and longitudinal magnetic field on the vibration frequency of single-walled fluid-conveying carbon nanotube. The numerical results show that the fluid has a significant influence on the vibration characteristics of SWCNTs, and the effect of the high-speed fluid on the carbon nanotube (CNT) wall cannot be neglected.
机译:本文研究了流体力和磁场对单壁碳纳米管(SWCNT)的振动特性的影响。 通过使用汉密尔顿的变化原理和从麦克斯韦的关系获得的洛伦兹磁力来得出SWCNT管壁上的流体的力。 运动的控制方程基于流体和纵向磁场的作用下的非局部光束模型。 此外,在本发明的研究中,还提出了一种分析方法来研究流体,小规模效应和纵向磁场对单壁输送碳纳米管的振动频率的影响。 数值结果表明,流体对SWCNT的振动特性产生了显着影响,并且不能忽略碳纳米管(CNT)壁上的高速流体对碳纳米管(CNT)壁的影响。

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