Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Wind and Structures Volume 30, Number 2, February 2020 , pages 133-140 DOI: https://doi.org/10.12989/was.2020.30.2.133 |
|
|
|
Dynamic analysis of laminated nanocomposite pipes under the effect of turbulent in viscoelastic medium |
||
M.M. Ghaitani, A. Majidian and V. Shokri
|
||
| Abstract | ||
| In this paper, critical fluid velocity and frequency of laminated pipe conveying fluid are presented. Each layer of the pipe is reinforced by functionally graded carbon nanotubes (FG-CNTs). The internal fluid is assumed turbulent and the induced forces are calculated by momentum equations. The pipe is resting on viscoelastic foundation with spring, shear and damping constants. The motion equations are derived based on classical shell theory and energy method. Differential quadrature method (DQM) is used for solution and obtaining the critical fluid velocity. The effects of volume percent and distribution of CNT, boundary condition, lamina layer number, length to radius ration of pipe, viscoelastic medium and fluid velocity are shown on the critical fluid velocity. Results show that with increasing the lamina layer number, the critical fluid velocity increases. | ||
| Key Words | ||
| critical fluid velocity; laminated pipeline; nanocomposite; turbulent internal fluid; viscoelastic foundation | ||
| Address | ||
| M.M. Ghaitani, A. Majidian:Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran, P.O.B. 4816119318, Sari, Iran V. Shokri: Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran, P.O.B. 4816119318, Sari, Iran | ||