Experimental Estimation of Critical Buckling Velocities for Conservative Pipes Conveying Fluid
Conservative pipes conveying fluid such as pinned-pinned (p-p), clampedpinned (c-p) pipes and clamped-clamped (c-c) lose their stability by buckling at certain critical fluid velocities. In order to experimentally evaluate these velocities, high flow-rate pumps that demand complicated fluid circuits...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Al-Khwarizmi College of Engineering – University of Baghdad
2011
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/9a9228c6d2694e8585b274f9463211f1 |
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| Sumario: | Conservative pipes conveying fluid such as pinned-pinned (p-p), clampedpinned (c-p) pipes and clamped-clamped (c-c) lose their stability by buckling at certain critical fluid velocities. In order to experimentally evaluate these velocities, high flow-rate pumps that demand complicated fluid circuits must be used.<br /> This paper studies a new experimental approach based on estimating the critical velocities from the measurement of several fundamental natural frequencies .In this approach low flow-rate pumps and simple fluid circuit can be used.<br />Experiments were carried out on two pipe models at three different boundary conditions. The results showed that the present approach is more accurate for estimating the critical velocities of p-p and c-p pipes. However, for c-c pipes it was not so unless a higher flow rate is used.<br /> |
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