| 纳米碳管的若干动力学问题 |
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| 引用本文： | 胡海岩,王立峰. 纳米碳管的若干动力学问题[J]. 动力学与控制学报, 2003, 1(1): 14-19 |
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| 作者姓名： | 胡海岩 王立峰 |
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| 作者单位： | 南京航空航天大学智能材料与结构航空科技重点实验室,南京,210016 |
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| 基金项目： | 国家自然科学基金重点资助项目(50135030).~~ |
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| 摘 要： | 以单壁纳米碳管为例,建立了其分子动力学模型,并对(5,5)和(10,10)扶手椅型纳米碳管与刚性壁的正碰撞过程和简谐纵波传播过程进行了模拟.在此基础上,探讨如何用弹性杆模型来研究纳米碳管的动力学问题。研究表明,弹性杆模型可以描述单壁扶手椅型纳米碳管与刚性壁高速碰撞的动力学行为;对于纵波传播中的色散描述,则需在弹性杆模型中计入纳米碳管微结构引起的非局部弹性效应.
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| 关 键 词： | 纳米碳管 冲击 波 色散 分子动力学模拟 |
| 收稿时间： | 2003-09-01 |
| 修稿时间： | 2003-09-01 |
Dynamic problems of carbon nanotubes |
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| Hu Haiyan and Wang Lifeng. Dynamic problems of carbon nanotubes[J]. Journal of Dynamics and Control, 2003, 1(1): 14-19 |
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| Authors: | Hu Haiyan and Wang Lifeng |
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| Abstract: | This paper addresses a few dynamic problems of carbon nanotubes through the illustrative examples of(5, 5)and(10, 10)armchair single-walled carbon nanotubes.It presents the results of molecular dynamics simulation for the normal impact of the carbon nanotubes with a rigid Wall,and the simulation results of the propagation of harmonic longitudinal waves in the carbon nonatubes.It also demonstrates the validity of dynamic model of an elastic rod for those dynamic problems.The elastic rod model enables one to study the high-speed impact of an armchair single-walled carbon nanotube with a rigid wall,but the model should include the effect of microstructures in those carbon nanotubes when the wave dispersion is under study. |
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| Keywords: | carbon nanotube impact wave dispersion molecular dynamics simulation |
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