随机波群的模拟
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摘要: 本文首先对平稳随机过程包络的特性进行理论分析,在此基础上提出一种以给定波面位移谱和波面包络谱两者为靶谱的波群模拟方法。与Funke和Mansard(1980)提出的以波群群因子为靶的波群模拟方法(可能是迄今唯一的方法)相比,本法不仅在概念上比较合理,而且在手续上要简便得多,并能兼顾波群高度和长度两方面特征的模拟。大量模拟实例表明,在一定条件限制下,本方法模拟的结果比较令人满意。
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Fuake E R and E P D Mansard. On the synthesis of realistic sea states in a laboratory flume Proc, 17th C oastal Eng, Conf.,1978, (3):2228 Tayfun M A and J-M Lo. Wave envelope and related spectra. J. Waterway, Port, Coast. and Oc. Engrg.,ASCE 1989, (115):515 Melville W K. Wave modulation and breakdown. J. Fluid Mech.,1983, (128):489 Papoulis A. Probability, Random Variable, and Stochastic Processes. McGra-Hill.,Inc.,1965,336 Longuet-Higgins M S, The statistical analysis of random moving surface. Phil.Trang. Roy,Soc. Lond.,Series A, 1957,(249):321 Teyfun M A and J-M Lo. Wave envelope and related spectra. J, Waterway. Port, Coast,end Oc, Engrg.,ASCE. 1989, (115):515 Gods Y, Radom Seas and Design of Marine Structures, University of Tokyo Press, Japan, 1970 -
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