基于蒙特卡罗法的船舶有效角概率特性研究
首发时间:2010-12-13
摘要:采用蒙特卡罗随机模拟法研究了船舶外飘砰击有效砰击角的概率特性。根据船舶纵摇角和海浪波面斜率随机变量的概率密度函数生成随机样本数据,在此基础上分别计算垂直法平面内船体表面斜升角和有效砰击角变量值,对该变量值进行统计分析。运用 拟合检验法对有效砰击角的概率分布进行拟合优度检验,结果表明:在0.05显著性水平下,有效砰击角随机变量服从正态分布规律。
关键词: 船舶与海洋结构物设计制造 蒙特卡罗法 船舶外飘砰击 海浪波面斜率 有效砰击角 概率特性
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Probability Characteristic Study of Effective Impact Angle of Ship Bow Based on Monte Carlo Simulation
Abstract:The probability characteristic of effective impact angle of bow fare impact is studied based on Monte Carlo simulation. The random samples of ship pitch angle and wave surface slope are generated according to the probability density function, and the deadrise angel of impact region in vertical normal plane and effective impact angle are calculated in terms of these samples. The statistics rules of these angles have been analyzed and hypothesis testing is utilized to inspect the goodness of fit of effective impact angle. The results show that the effective impact angle of ship bow flare follow Gaussian distributions.
Keywords: Design and Construction of Naval Architecture and Ocean Structure Monte Carlo Simulation bow flare impact wave surface slope effective impact angle probability characteristic
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