ANALYSIS OF PULL-IN INSTABILITY OF ELECTROSTATICALLY ACTUATED CARBON NANOTUBES USING THE HOMOTOPY PERTURBATION METHOD

被引：5

作者：

Fakhrabadi, Mir Masoud Seyyed ^{[1
]}

Rastgoo, Abbas ^{[2
]}

Ahmadian, Mohammad Taghi ^{[3
]}

机构：

[1] Islamic Azad Univ, Karaj Branch, Karaj, Iran

[2] Univ Tehran, Coll Engn, Sch Mech Engn, Tehran, Iran

[3] Sharif Univ Technol, Dept Mech Engn, Tehran 113659567, Iran

来源：

JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES | 2013年 / 8卷 / 8-10期

关键词：

carbon nanotubes; pull-in phenomenon; nanoelectromechanical systems; homotopy perturbation method; NUMERICAL-ANALYSIS; NEMS DEVICES; BEHAVIOR; FORCE;

D O I：

10.2140/jomms.2013.8.385

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper analyzes the deflection and pull-in behaviors of cantilever and doubly clamped carbon nanotubes (CNTs) under electrostatic actuation using the homotopy perturbation method. The effects of electrostatic force and interatomic interactions on the deflection and pull-in instabilities of CNTs with different lengths, diameters, and boundary conditions are investigated in detail. The results reveal that larger diameters and shorter lengths result in higher pull-in voltages. Moreover, CNTs with doubly clamped boundary conditions, in comparison with cantilever boundary conditions, are more resistant to pull-in.

引用

页码：385 / 401

页数：17

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