• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The Proceedings of The First Asian and Pacific Coastal Engineering Conference (APACE 2001) >STUDY ON COMBINED SEA ENVIRONMENTAL DESIGN CRITERIA FOR MARINE RISERS
【24h】

STUDY ON COMBINED SEA ENVIRONMENTAL DESIGN CRITERIA FOR MARINE RISERS

机译：海洋沿岸海洋综合环境设计标准研究

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

摘要

The motion equation of lateral vibration of marine risers conveying flowing fluid subjected to ocean environmental loads is derived. Sampling analysis is made on the 15 storm processes of Bohai Sea and sequences of simultaneous wave height and current velocity dominated by wave and current respectively are obtained. Then the optimal distribution type of each sequence and the corresponding characteristic values are determined. Importance Sampling Procedure is applied to stochastic simulation to compute the wave height and current velocity under joint probability 0.01 (that is 100 yr. combined return period). Finally, taking the marine riser containing flowing fluid as a model, the maximum stress on the marine riser is regarded as the control condition to determine the combined design criteria. Comparisons with results of other methods show that the combined environmental design criteria and the stress response of the marine risers are very sensitive to small variation of the current velocities in high current sea areas.
机译：推导了承受海洋环境载荷的流动流体的海洋立管横向振动的运动方程。对渤海的15个风暴过程进行了抽样分析，得到了以波浪和水流为主的同时波浪高度和流速的序列。然后确定每个序列的最佳分布类型和相应的特征值。将重要性采样程序应用于随机模拟，以计算联合概率为0.01（即100 yr。联合返回周期）下的波高和当前速度。最后，以含有流动流体的船用立管为模型，将船用立管上的最大应力作为确定组合设计准则的控制条件。与其他方法的结果比较表明，组合的环境设计标准和海洋立管的应力响应对高流速海域中流速的微小变化非常敏感。

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