Physical and Geometrical Effects on the Vibratory Pattern of a Pipe Carrying Fluid Flow
- 1 USTO-MB, Algeria
- 2 University of Djilali Bounaama-Khamis Meliana, Algeria
- 3 Chlef University Hassiba Benbouali, Algeria
- 4 Mostaganem University-Abdelhamid Ibn Badis, Algeria
Abstract
In this research, the first natural frequencies and critical velocities of a fluid flow-conveying pipe are obtained with finite element method. By discretizing the structure wall and fluid flow, starting from beam type with two degrees of freedom per node. We determine the equation of motion from the fluid-structure coupling using Lagrange energy principle. Parameters frequencies and critical velocity of fluid flow are calculated by using a program developed on MATLAB. The results are compared with those predicted by the differential transformation method. Stability and instability properties of the system are analyzed after calculating the natural frequencies and the fluid critical velocity in terms of various parameters.
DOI: https://doi.org/10.3844/ajbsp.2020.45.55
Copyright: © 2020 Dahmane Mouloud, Samir Zahaf, Mawhoub Soubih, Benkhettab Mohamed and Djilali Boutchicha. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Fluid-Conveying Pipe
- Natural Frequencies
- Critical Velocity
- Elastic Foundation
- Instability
- MATLAB