Vibration analysis of single-walled carbon nanotubes conveying nanoflow embedded in a viscoelastic medium using modified nonlocal beam model

• Autorzy: Hosseini M. , Sadeghi-Goughari M. , Atashipour S. A. , Eftekhari M.
• Języki publikacji: EN

Abstrakty

EN

In this study, the vibration and stability analysis of a single-walled carbon nanotube (SWCNT) coveying nanoflow embedded in biological soft tissue are performed. The effects of nano-size of both fluid flow and nanotube are considered, simultaneously. Nonlocal beam model is used to investigate flow-induced vibration of the SWCNT while the small-size effects on the flow field are formulated through a Knudsen number (Kn), as a discriminant parameter. Pursuant to the viscoelastic behavior of biological soft tissues, the SWCNT is assumed to be embedded in a Kelvin–Voigt foundation. Hamilton’s principle is applied to the energy expressions to obtain the higher-order governing differential equations of motion and the corresponding higher-order boundary conditions. The differential transformation method (DTM) is employed to solve the differential equations of motion. The effects of main parameters including Kn, nonlocal parameter and mechanical behaviors of the surrounding biological medium on the vibrational properties of the SWCNT are examined.

Słowa kluczowe

EN

single-walled carbon nanotube; small size effects; Knudsen number; nonlocal parameter; viscoelastic medium; differential transformation method

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2014
• Tom: Vol. 66, nr 4
• Strony: 217--244
• Opis fizyczny: Bibliogr. 47 poz., rys., wykr.

Twórcy

autor

Hosseini M.

• Department of Mechanical Engineering Sirjan University of Technology 78137-33385 Sirjan, I.R., Iran

autor

Sadeghi-Goughari M.

• Department of Mechanical Engineering College of Technology of Sirjan Shahid Bahonar University of Kerman 76169-14111 Kerman, I.R., Iran

autor

Atashipour S. A.

• Department of Mechanical Engineering Isfahan University of Technology 84156-83111 Isfahan, I.R., Iran

autor

Eftekhari M.

• Department of Mechanical Engineering Yazd University Yazd, I.R. Iran

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