• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>25th International Conference on Offshore Mechanics and Arctic Engineering 2006(OMAE2006) vol.4 >PIPELINE-TRAWL INTERACTION: EFFECT OF TRAWL CLUMP WEIGHTS
【24h】

PIPELINE-TRAWL INTERACTION: EFFECT OF TRAWL CLUMP WEIGHTS

机译：管道-水流相互作用：水流团块重量的影响

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper deals with clump weights, a new type of component in bottom trawl gear that needs to be considered in design and reassessment of pipelines.rnIn recent years it has become popular to use two trawl bags, a so-called twin trawl, to increase the swept area and, thus, the efficiency of the trawler. In addition to the trawl boards at each side of the trawl bags, a heavy weight, a clump weight, is used between the bags to keep them close to the seabed. Clump weights can have a mass up to 9 tonnes, and the largest ones are shaped as spheres or cylinders inside a steel frame.rnTests performed have revealed that the loads on pipelines from clump weights may exceed the corresponding loads from trawl boards. Thus, interaction with clump weights may govern the design and qualification testing of coating, and the design related to global pipeline response.rnThis paper discusses loads from clump weights. Updated design approaches including pull-over load estimates are presented. The background in terms of small scale test results is also shown for some cases. The conclusion is that clump weights may govern the trawl design of pipelines, especially for trawl gear impact and pull-over.
机译：本文涉及团块重量，这是在设计和重新评估管道时需要考虑的底拖网齿轮中的新型零件。近年来，使用两个拖网袋（所谓的双拖网）来增加其重量已变得很普遍。清扫区域，从而提高拖网渔船的效率。除拖网袋两侧的拖网板外，在网袋之间还使用了较重的重量，成块的重量，以使它们靠近海床。团块的重量可以达到9吨，最大的团块可以做成钢框架内的球形或圆柱状。rn测试表明，团块的重量可能会超过拖网板的相应载荷。因此，与团块权重的相互作用可能决定着涂层的设计和鉴定测试，以及与整体管线响应有关的设计。提出了更新的设计方法，包括上拉负荷估算。在某些情况下，还显示了小规模测试结果的背景。结论是，结块重量可以控制管道的拖网设计，特别是对于拖网齿轮冲击和翻车而言。

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