含热效应的碳纳米管弹性介质强迫振动的非局部Euler-Bernoulli理论分析

IF 1.9 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
T. Bensattalah, M. Zidour, T. H. Daouadji
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引用次数: 20

摘要

本文基于非局部欧拉-伯努利梁研究了碳纳米管在弹性介质中的自由振动和强迫振动,包括热载荷和动载荷效应。采用Winkler型弹性地基对碳纳米管与周围弹性介质的相互作用进行了模拟。分析和讨论了非局部小尺度效应、高温变化、温克勒模量参数、振动模式和长径比等参数对短碳纳米管振动频率的影响。非局域欧拉-伯努利梁模型预测较低的共振频率。研究工作揭示了小尺度系数、振型数、弹性介质和温度变化对无量纲固有频率的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analytical analysis for the forced vibration of CNT surrounding elastic medium including thermal effect using nonlocal Euler-Bernoulli theory
This article studies the free and forced vibrations of the carbon nanotubes CNTs embedded in an elastic medium including thermal and dynamic load effects based on nonlocal Euler- Bernoulli beam. A Winkler type elastic foundation is employed to model the interaction of carbon nanotube and the surrounding elastic medium. Influence of all parameters such as nonlocal small-scale effects, high temperature change, Winkler modulus parameter, vibration mode and aspect ratio of short carbon nanotubes on the vibration frequency are analyzed and discussed. The non-local Euler-Bernoulli beam model predicts lower resonance frequencies. The research work reveals the significance of the small-scale coefficient, the vibrational mode number, the elastic medium and the temperature change on the non-dimensional natural frequency.
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来源期刊
Advances in Materials Research-An International Journal
Advances in Materials Research-An International Journal MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.50
自引率
27.30%
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0
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