计及随机海浪波面倾角影响的船底砰击压力概率分布
首发时间:2010-12-14
摘要:计及随机海浪波面倾角的影响,研究了船舶底部砰击压力的概率分布问题。在计算船底砰击压力时引入随机海浪的波面条件,根据海浪波面斜率和船波之间相对速度的统计特性导出砰击压力随机变量的概率密度函数。计算结果表明,计及随机海浪波面倾角影响的概率密度函数与试验结果更加一致。
关键词: 船舶与海洋结构物设计制造 船舶底部砰击 海浪波面斜率 相对速度 概率分布
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Probability Distribution of Ship Bottom Slamming Pressure Considering the Randomness of Wave Surface Slope
Abstract:Considering the randomness of ocean wave surface slope, the probability distribution of ship bottom slamming is studied. The surface condition of random wave is introduced while predicting the ship bottom slamming pressure, and also the effect of the wave surface slope on the pressure is discussed in the paper. According to the statistics characteristics of surface slope of ocean wave and the relative velocity of ship and wave, the probability density function of slamming pressure is deduced. The result shows that the probability distribution considering the randomness of ocean wave surface slope get a good agreement with the test value.
Keywords: Design and Construction of Naval Architecture and Ocean Structure slamming surface slope of wave relative velocity probability distribution
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