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Analysis of the Suppression Device as Vortex Induced Vibration (VIV) Reducer on Free Span using Finite Element Method

机译:使用有限元方法分析涡流诱导振动(VIV)减速器的抑制装置

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摘要

Subsea pipeline is a transportation infrastructure of oil and gas as an alternative for ship tanker. The uneven topography surface of the sea floor resulting the pipe undergoes free span. The free span is a condition endured by the pipe where the pipe position has  distance or gap with the seabed supported by two pivot. The free span is at risk of experiencing a vibration caused by the presence of dynamic load that is current and the wave. The vibration that occurs is the impact of the presence of the phenomenon of Vortex Induced Vibration (VIV). The Phenomenon Of VIV occur on a cylindrical component caused by ocean currents, causing the occurrence of vibration by the movement of fluid on the pipe so that it raises the vortex at the rear of the direction of oncoming flow. One way to dampen or reduce the impact of VIV is by adding suppresion device. VIV suppression device is a tool that is installed on the pipeline on offshore piping installationcthat serves to dampen or reduce the impact of VIV. One of the simulations used to know the characteristics of a fluid is to use (CFD) Computational Fluid Dynamic. With the addition of suppression device can add the rest of the operating time on a free span of affected VIV, on the condition of free span critical exposed VIV (Vortex Induced Vibration value) has a life time on plain pipe 44.21 years, on pipe with 53.09 years and Fairing on the pipe with the Helical strike 52.95 year.
机译:海底管道是石油和天然气的交通基础设施,作为船舶油轮的替代品。海底的不均匀地形表面导致管道经历自由跨度。自由跨度是由管道承受的条件,其中管道位置具有两个枢轴支撑的海底的距离或间隙。自由跨度有可能在存在由电流和波浪的动态负荷的存在引起的振动的风险。发生的振动是涡旋诱导振动(VIV)现象的影响。 VIV的现象发生在由海洋电流引起的圆柱形部件上,导致流体在管上的运动发生振动,使得它在迎面而来的流动方向的后部升起涡流。通过添加Suppresion装置来抑制或减少VIV的影响的一种方法。 VIV抑制装置是在海上管道上安装在管道上的工具,用于抑制或减少VIV的影响。用于知道流体特性的模拟之一是使用(CFD)计算流体动态。随着抑制装置的添加可以在受影响的VIV的自由跨度上添加其余的操作时间,在自由跨度临界暴露的VIV(涡旋诱导的振动值)的情况下,在普通管道上的寿命44.21岁,在管道上53.09岁并在管道上整流螺旋击球52.95年。

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    Dwi Priyanta; Anang Abdullah;

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  • 年度 2016
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  • 原文格式 PDF
  • 正文语种 eng
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