| Effects of Internal Flow on Vortex-Induced Vibration and Fatigue Life of Submarine Pipelines |
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| 摘 要： | - With the rapid development of the offshore oil industries, submarine oil / gas pipelines have been widely used. Under the complicated submarine environmental conditions, the dynamic characteristics of pipelines show some new features due to the existence of both internal and external flows. The paper is intended to investigate the vortex-induced vibration of the suspended pipeline span exposed to submarine steady flow. Especially, the effects of the flow inside the pipeline are taken into account. Its influences on the amplitude of pipeline response, and then on the fatigue life, are given in terms of the velocity of the internal flow.
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Effects of Internal Flow on Vortex-Induced Vibration and Fatigue Life of Submarine Pipelines |
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| Authors: | Shen Zhonghan and Zhao Qiang Professor |
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| Abstract: | - With the rapid development of the offshore oil industries, submarine oil / gas pipelines have been widely used. Under the complicated submarine environmental conditions, the dynamic characteristics of pipelines show some new features due to the existence of both internal and external flows. The paper is intended to investigate the vortex-induced vibration of the suspended pipeline span exposed to submarine steady flow. Especially, the effects of the flow inside the pipeline are taken into account. Its influences on the amplitude of pipeline response, and then on the fatigue life, are given in terms of the velocity of the internal flow. |
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| Keywords: | submarine oil/ gas pipelines Jlow in pipeline vortex-induced vibration structural dynamic responses fatigue life |
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