海浪等随机变量有界概率分布及工程应用  

A limited probability distribution of stochastic variability and its application in engineering

作　　者：王涛[1] 尹宝树[1] 侯一筠[1] 苏京志[1] 

机构地区：[1]中国科学院海洋研究所,山东青岛266071

出　　处：《海洋工程》2003年第3期89-93,共5页The Ocean Engineering

基　　金：国家自然科学基金资助项目(40076005;49876007);中国科学院知识创新资助项目(KZCX2-202)

摘　　要：提出了一种随机量有界概率分布形式,该分布包含随机量的下界a、上界b及α、β两个特定系数共四个参量,由改变其中任一个参量所显示的结果看出,该分布具有较强的普适性。将该分布应用于海洋工程设计中常用的海浪波高长期分布的重现期及重现值的分析,得出了比P-Ⅲ型、Weibull及Gumble等分布较为合理的分析结果。A limited probability distribution of stochastic variability is presented. This distribution includes four parameters: lower limit a, upper limit b, α,β. From the results induced by the change of any parameter, it is obvious that this distribution can be widely employed. By applying it in the study of return periods and the value of return periods for the longterm distribution of wave height in marine engineering design, a result, better than the P-Ⅲ, Weibull and Gumble distribution, is gained.

关 键 词：有界随机量 上界与下界 有界概率分布 

分 类 号：P731[天文地球—海洋科学]