• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International offshore and polar engineering conference;ISOPE-2002 >Coupled Effects of Risers/Supporting Guide Frames on Spar Responses
【24h】

Coupled Effects of Risers/Supporting Guide Frames on Spar Responses

机译：竖板/支撑导向框架对翼梁响应的耦合影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a study of coupling effects of risers and thesupporting guide frames inside the moonpool on Spar dynamicresponses. It has been reported that the measured pitch/roll and heavemotions were significantly smaller than the predicted results by anuncoupled method in field measurements of the Neptune Spar. Part ofthe reason is that the contact forces between the risers and supportingguide frames inside the moonpool have been ignored in the analysis. Asa practical matter, the analysis capabilities are needed to model contactforces of risers and supporting guide frames with realistic boundaryconditions. It is our goal to extend our coupled analysis ability toinclude these effects and explore the benefit of design by applying anewly developed analysis tool.Both fully coupled and partially coupled analyses of a Spar in 3,000 ftwater depth have been performed. The fully coupled analysisconsidered the coupling of hull/moorings, risers/supporting guideframes, and hull/risers outside of the hull. The partially coupledanalysis examined the coupling of hull/moorings and hull/risers outsideof the hull. The coupling effects of risers and supporting guide frameson hull motions, contact forces between risers and supporting guideframes, and mooring line dynamics have been analyzed. Theseanalyses were further validated by the physical model test results.Smaller heave and pitch/roll motions, in reality, will lead to reductionof hull draft, and solid ballast in the keel tank. These reductions have asignificant impact on hull sizing, hull fabrication and transportation,production riser and SCR design. It is recommended that fully coupleddynamic analysis be performed, including contact forces, to avoidbeing unnecessarily conservative and to improve the economics of thefield development.
机译：本文提出了立管与月池内部支撑架对翼梁动力响应的耦合效应的研究。据报道，在海王星晶石的野外测量中，所测得的俯仰/侧倾和起伏运动明显小于通过非耦合方法预测的结果。部分原因是分析中忽略了立管与月池内部支撑导轨之间的接触力。作为实际问题，需要具有分析能力来对立管和支撑导向架的接触力建模，并具有现实的边界条件。我们的目标是通过使用新开发的分析工具来扩展耦合分析能力，以包括这些影响并探索设计的益处。已对3,000英尺深的Spar进行了完全耦合和部分耦合分析。完全耦合分析考虑了船体/系泊设备，立管/支撑导架以及船体外部的船体/立管之间的耦合。部分耦合分析检查了船体/系泊和船体/竖井在船体外的耦合。分析了立管与支撑导向架的船体运动，立管与支撑导向架之间的接触力以及系泊缆动力学的耦合效应。物理模型测试结果进一步验证了这些分析。实际上，较小的升沉和俯仰/横摇运动将导致船体吃水的减少以及龙骨舱中压载物的减少。这些减少对船体尺寸，船体制造和运输，生产立管和SCR设计有重大影响。建议进行包括接触力在内的全耦合动力分析，以避免不必要的保守并提高油田开发的经济性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号