Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Stability Analysis of Nanopipes Considering Nonlocal Effect

Nonlocal 효과를 고려한 나노파이프의 안정성 해석

  • Choi, Jongwoon (Machinery, Metals & Construction Exam. Bureau, Korean Intellectual Property Office) ;
  • Song, Ohseop (Department of Mechanical Engineering, Chungnam National University)
  • Received : 2012.12.24
  • Accepted : 2013.03.12
  • Published : 2013.04.20
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Abstract

In this paper, static and oscillatory instability of a nanotube conveying fluid and modeled as a thin-walled beam is investigated. Analytically nonlocal effect, effects of boundary conditions, transverse shear and rotary inertia are incorporated in this study. The governing equations and boundary conditions are derived through Hamilton's principle. Numerical analysis is performed by using extended Galerkin method which enables us to obtain more accurate results compared with conventional Galerkin method. Variations of critical flow velocity of carbon nanopipes with two different boundary conditions based on the analytically nonlocal theory and partially nonlocal theory are investigated and pertinent conclusions are outlined.

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References

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