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Document Type:Latin Dissertation
Language of Document:English
Record Number:52743
Doc. No:TL22697
Call number:‭1456212‬
Main Entry:Fathi Nasr Abdulla Mayoof
Title & Author:Nonlinear vibration of single walled carbon nanotube resonatorsFathi Nasr Abdulla Mayoof
College:King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date:2008
Degree:M.S.
student score:2008
Page No:126
Abstract:Since their discovery in 1991, carbon nanotubes (CNT) have been recognized to be ideal components for a wealth of technological applications. Vibrations of carbon nanotubes are of considerable importance in a number of miniaturized devices such as oscillators, charge detectors, clocks, emission devices and sensors. This thesis presents a general study of nonlinear vibration of a single-walled carbon nanotube, which is doubly-clamped at a source and a drain. The carbon nanotube is excited harmonically by an electrostatic force. The problem is modeled in the context of an elastic continuum beam theory, involving a mid-plane stretching and phenomenological damping. The dynamic response of the nanobeam shows a sequence of period-doubling bifurcations leading to chaos where the carbon nanotube is assumed to be perfectly straight. Moreover, the model is extended to involve a curved single-walled carbon Nanotube, which is taken into account according to the strong evidence of existence of waviness in CNTs. The dynamic response of this case is simulated and showed a sequence of period - doubling bifurcation culminating to chaos. This case is suggested to be more realistic to model the vibration of the carbon nanotube in comparison to the earlier case.
Subject:Applied sciences; Mechanical engineering; 0548:Mechanical engineering
Added Entry:King Fahd University of Petroleum and Minerals (Saudi Arabia)