海洋科学2009，Vol.33Issue(7)：94-98,5.
流向Morison型波浪力的高阶矩分析
Analysis of higher moments for in-line Morison wave forces
摘要
Abstract
By means of theoretical study, this paper is to quantitatively describe the varying law of the higher moments of in-line Morison wave forces, i.e., drag force and inertia force, as the number of sampling increases. The second-order Stokes wave theory is mainly applied herein to deriving the first four cumulants of the in-line Morison wave forces. In the case study, the theory in this paper is adopted to calculate the skewness and kurtosis of the drag force and inertia force acted upon a practical subsea pipeline. It can be seen from the results that, as the number of sampling increases, the skewness and kurtosis of the drag force and inertia force tend to converge. The approach in this paper serves as a foundation for the theoretical work in the future.关键词
波浪力/偏斜度/峰度/累积量/非线性影响Key words
wave force/ skewness/ kurtosis/ cumulant/ non-linear effects分类
建筑与水利引用本文复制引用
杨怿..流向Morison型波浪力的高阶矩分析[J].海洋科学,2009,33(7):94-98,5.基金项目
中国海洋石油研究中心科研项目 （）
