海洋工程装备与技术 ›› 2017, Vol. 4 ›› Issue (5): 287-292.

• 海洋工程装备制造材料与设计技术 • 上一篇    下一篇

海上多浮体作业系统运动响应数值模拟及模型试验

韩旭亮, 谢彬, 王世圣, 喻西崇, 李焱   

  1. 中海油研究总院,北京 100028
  • 收稿日期:2017-02-08 出版日期:2017-10-25 发布日期:2017-10-31
  • 作者简介:韩旭亮(1985—),男,博士,工程师,主要从事海洋工程浮式结构物方面的研究。
  • 基金资助:
    国家科技重大专项(2016ZX05028-002);国家自然科学基金(51609267)

Numerical Simulation and Model Test of the Motion Responses of Multi-Body Floating Operation System at Sea

HAN Xu-liang, XIE Bin, WANG Shi-sheng, YU Xi-chong, LI Yan   

  1. CNOOC Research Institute, Beijing 100028, China
  • Received:2017-02-08 Online:2017-10-25 Published:2017-10-31
  • Supported by:
     

摘要: 为了保证海上多浮体作业系统的安全性和可靠性,基于三维势流理论,采用延迟函数方法,建立了波浪中多浮体作业系统耦合运动的数学模型。该方法充分考虑了多浮体兴波水动力相互作用的影响,综合考查了多浮体在不同浪向角波浪中的运动响应。计算分析了运输船靠近单柱式(Spar)平台安装作业在不同浪向中的运动响应情况,并与模型试验进行比较。研究结果表明,不同浪向中运输船运动响应的数值模拟结果和模型试验结果具有良好的一致性,证明了数学模型的合理性。多浮体系统靠近作业会产生局部波浪放大或遮蔽效应。

Abstract: In order to ensure the safety and reliability of multi-body floating operation system at sea, we present the retardation function approach based on the three-dimensional (3D) potential flow theory. The mathematical model of the coupled motion responses of multi-body floating operation system is established. The effect of hydrodynamic interaction of multi-body floating system is fully taken into account, and the motion responses of multi-body floating system are tested comprehensively under different wave headings. The motion performance of transport ship in close proximity to spar platform is investigated for offshore installation operation under different wave headings. Then the numerical simulation results are presented and compared with the model test results. Satisfactory agreements are achieved, proving the validity of the mathematical model. From the results, it is found that the local wave may generate an amplification or shadowing effect for multi-body system in close proximity offshore operation.

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