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    Please use this identifier to cite or link to this item: https://ir.lib.ksu.edu.tw/handle/987654321/10766

    Title: Free vibration of a single-walled carbon nanotube containing a fluid flow using the Timoshenko beam model
    Authors: Win-Jin Chang(張文進)
    Haw-Long Lee
    Contributor: 圖書資訊館
    Keywords: Fluid-conveying SWCNT
    Timoshenko beam theory
    Vibration frequency
    Mode shape
    Date: 2009
    Issue Date: 2010-09-06 11:41:52 (UTC+8)
    Abstract: The flexural vibration of the fluid-conveying single-walled carbon nanotube (SWCNT) is derived by the
    Timoshenko beam model, including rotary inertia and transverse shear deformation. The effects of the
    flow velocity and the aspect ratio of length to diameter on the vibration frequency and mode shape of
    the SWCNT are analyzed. Results show that the effects of rotary inertia and transverse shear deformation
    result in a reduction of the vibration frequencies, especially for higher modes of vibration and short
    nanotubes. The frequency is also compared with the previous study based on Euler beam model. In
    addition, if the ratio of length to diameter increased to 60, the influence of the shear deformation and
    rotary inertia on the mode shape and the resonant frequencies can be neglected. However, the influence
    is very obvious when the ratio decreased to 20. As the flow velocity of the fluid increases in the vicinity
    of 2π, the SWCNT reveals the divergence instability. It regains stability when the flow velocity reaches
    about 9. As the velocity increases further, the SWCNT undergoes a coupled-mode flutter and results in a
    larger amplitude.
    Appears in Collections:[機械工程系所] 期刊論文

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