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首页> 外文期刊>Ocean Engineering >Centrifuge modeling of steel catenary risers at touchdown zone part Ⅰ:Development of novel centrifuge experimental apparatus
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Centrifuge modeling of steel catenary risers at touchdown zone part Ⅰ:Development of novel centrifuge experimental apparatus

机译：降落区钢悬链立管离心机模型Ⅰ：新型离心机实验装置的研制

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摘要

The critical location for fatigue damage in Steel Catenary Risers (SCRs) is often located within the touchdown zone (TDZ), where cyclic interaction of the riser with the seabed occurs. Riser-fluid-soil interaction at the TDZ is a complex phenomenon with significant room for improving the understanding of the interaction, the trench formation mechanism, and their influence on fatigue life. This paper describes a novel experimental tool developed for SCR testing in a geotechnical centrifuge. It discusses the modeling parameters, scaling considerations, and developed actuation system. Further, it presents the results of a series of trial tests done on an elastic seabed model and compares the measurements to the results of finite element analysis. Finally, it discusses the potential of the tool in modeling SCRs at TDZ using seabed soil and dual frequency Response-Amplitude-Operator (RAO) motions.
机译：钢悬链提升器（SCR）中疲劳损坏的关键位置通常位于接地区域（TDZ）内，在那里立管与海床发生周期性相互作用。 TDZ处的上升段-流体-土壤相互作用是一个复杂的现象，具有极大的空间可用于增进对相互作用，沟槽形成机理及其对疲劳寿命的影响的理解。本文介绍了一种为岩土离心机中的SCR测试开发的新型实验工具。它讨论了建模参数，缩放比例注意事项和开发的驱动系统。此外，它提供了在弹性海底模型上进行的一系列试验的结果，并将测量结果与有限元分析的结果进行了比较。最后，它讨论了使用海床土壤和双频响应-振幅-算子（RAO）运动在TDZ SCR建模中该工具的潜力。

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  • 来源
    《Ocean Engineering》 |2013年第1期|200-207|共8页
  • 作者

    Bradley J. Elliott; Arash Zakeri; Andrew Macneill; Ryan Phillips; Edward C. Clukey; George Li;

  • 作者单位

    C-CORE, Captain Robert A. Bartlett Building, Morrissey Rd, St. John's, NL, Canada,Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada;

    BP America, 501 Westlake Park Boulevard, Houston, TX, USA;

    C-CORE, Captain Robert A. Bartlett Building, Morrissey Rd, St. John's, NL, Canada;

    C-CORE, Captain Robert A. Bartlett Building, Morrissey Rd, St. John's, NL, Canada;

    BP America, 501 Westlake Park Boulevard, Houston, TX, USA;

    Shell International Exploration and Production Inc., 200 N, Diary Ashford, Houston, TX, USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    steel catenary riser (SCR); touchdown zone; fatigue; riser-soil interaction; centrifuge modeling;

    机译：钢悬链提升器（SCR）;着陆区;疲劳;立管与土壤的相互作用离心机建模;

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