Vibration and Stability Analysis of DWCNT-Based Spinning Nanobearings

被引：9

作者：

Firouz-Abadi, Rohollah Dehghani ^{[1
]}

Mohammad-Khani, Hassan ^{[2
]}

Rahmanian, Mohammad ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Aerosp Engn, POB 11155-8639, Tehran, Iran

[2] Imam Hossein Univ, Dept Aerosp Engn, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS | 2017年 / 17卷 / 09期

关键词：

Spinning stability; double-walled carbon nanotube; nanobearing; van der Waals force; nonlocal elasticity; WALLED CARBON NANOTUBES; NONLOCAL ELASTICITY; BEARING; TEMPERATURE; SIMULATIONS; DYNAMICS; DRIVEN;

D O I：

10.1142/S0219455417501024

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper aims at investigating free vibrations and stability of double-walled carbon nanotube (DWCNT)-based spinning nanobearings. The so-called nanobearing consists of two coaxial carbon nanotubes (CNTs) where either of the two CNTs can be a rotor while the other takes the role of stator. Euler-Bernoulli beam model along with the Eringen's nonlocal theory of elasticity are employed to obtain governing equations of transverse vibrations for the CNTs. The coupling of the two CNTs originates from the van-der-Waals (vdW) forcing present in the interface of the two CNTs. The coupling is taken into account as distributed spring foundation with an equivalent elastic stiffness. Based on the obtained model, effects of small-scale parameter, vdW interaction between CNTs and the diameter ratio of CNTs on the critical spinning speed are investigated. Finally, the stability margins of the nanobearings are determined and some general conclusions are drawn.

引用

页数：14

共 35 条

[1] Double-wall nanotubes: classification and barriers to walls relative rotation, sliding and screwlike motion [J].

Belikov, AV ;

Lozovik, YE ;

Nikolaev, AG ;

Popov, AM .

CHEMICAL PHYSICS LETTERS, 2004, 385 (1-2) :72-78

[2] Thermal effect on wave propagation in double-walled carbon nanotubes embedded in a polymer matrix using nonlocal elasticity [J].

Besseghier, Abderrahmane ;

Tounsi, Abdelouahed ;

Houari, Mohammed Sid Ahmed ;

Benzair, Abdelnour ;

Boumia, Lakhdar ;

Heireche, Houari .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2011, 43 (07) :1379-1386

[3] Carbon nanotube based bearing for rotational motions [J].

Bourlon, B ;

Glattli, DC ;

Miko, C ;

Forró, L ;

Bachtold, A .

NANO LETTERS, 2004, 4 (04) :709-712

[4] Self-Excited Oscillation of Rotating Double-Walled Carbon Nanotubes [J].

Cai, Kun ;

Yin, Hang ;

Qin, Qing H. ;

Li, Yan .

NANO LETTERS, 2014, 14 (05) :2558-2562

[5] ENERGETICS OF MULTILAYERED CARBON TUBULES [J].

CHARLIER, JC ;

MICHENAUD, JP .

PHYSICAL REVIEW LETTERS, 1993, 70 (12) :1858-1861

[6] Low-friction nanoscale linear bearing realized from multiwall carbon nanotubes [J].

Cumings, J ;

Zettl, A .

SCIENCE, 2000, 289 (5479) :602-604

[7] Nonlocal elasticity effect on vibration of in-plane loaded double-walled carbon nano-tubes [J].

Ece, M. C. ;

Aydogdu, M. .

ACTA MECHANICA, 2007, 190 (1-4) :185-195

[8] Fundamental natural frequencies of double-walled carbon nanotubes [J].

Elishakoff, Isaac ;

Pentaras, Demetris .

JOURNAL OF SOUND AND VIBRATION, 2009, 322 (4-5) :652-664

[9] ON DIFFERENTIAL-EQUATIONS OF NONLOCAL ELASTICITY AND SOLUTIONS OF SCREW DISLOCATION AND SURFACE-WAVES [J].

ERINGEN, AC .

JOURNAL OF APPLIED PHYSICS, 1983, 54 (09) :4703-4710

[10] NONLOCAL POLAR ELASTIC CONTINUA [J].

ERINGEN, AC .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1972, 10 (01) :1-&

← 1 2 3 4 →