首页> 外文会议>International offshore and polar engineering conference >Risk in Performance of a Free Floating Structure Subjected to Combination of Wave Frequencies
【24h】

Risk in Performance of a Free Floating Structure Subjected to Combination of Wave Frequencies

机译:经受波峰组合的自由浮动结构性能的风险

获取原文

摘要

The risk of failing to achieve the acceptable performance (performance risk) of a free floating structure under the combined action of various wave frequencies is investigated in the frequency domain. Here, performance is quantified in terms of no exceedance of a threshold for the response level corresponding to each degree of freedom. Quantification of the performance risk is based on a Monte Carlo simulation technique. The numerical analysis of the free floating structure is carried out using a three dimensional hydrodynamic analysis. Several cases of different combinations of wave frequencies are investigated. The second-order hydrodynamic interactions of pertinent wave frequencies are considered in the analysis for each combination examined. Two issues are investigated, namely: (a) performance and (b) performance risk for the free floating structure considered. The performance and risk levels of the second-order solution are compared with the results of the corresponding first-order solution in order to investigate the significance of second-order quantities in the assessment of both performance and performance risk levels. According to the results generated by the present study, secondorder wave effects can generally strongly affect performance and performance risk levels.
机译:在频域中研究了在各种波浪频率的组合作用下实现自由浮动结构的可接受性能(性能风险)的风险。这里,就没有对应于每种自由度的响应电平的阈值来量化性能。性能风险的量化是基于蒙特卡罗仿真技术。使用三维流体动力学分析进行自由浮动结构的数值分析。研究了几种不同组合的波频组合。在检查各组合的分析中考虑了相关波频率的二阶流体动力相互作用。调查了两个问题,即:(a)绩效和(b)考虑的自由浮动结构的绩效风险。将二阶解决方案的性能和风险水平与相应的一级解决方案的结果进行比较,以便研究二阶数量在评估性能和性能风险水平中的重要性。根据本研究产生的结果,二阶波效应通常会强烈影响性能和性能风险水平。

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