On An Improved Grim Effective Wave

Gabriele Bulian

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On An Improved Grim Effective Wave

机译：关于改进的严峻有效波

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摘要

This paper presents an extension of the original Grim effective wave concept. The aim is to develop a basic tool that is able, with a reduced number of assumptions with respect to the original Grim effective wave, to simplify the problem of description of hydrostatic variations of roll restoring in irregular waves. The irregular sea surface is approximated by an "equivalent" (effective) regular wave having fixed wave length but variable mean value, amplitude and position of the crest. The characteristics of the effective wave are obtained from the irregular sea surface by means of linear transfer functions. The probabilistic properties of the obtained parameters of the substitute wave are analysed and examples of application of the developed concept are provided.

机译：本文提出了原始的Grim有效波概念的扩展。目的是开发一种基本工具，该工具能够减少与原始Grim有效波有关的假设，从而简化描述不规则波中辊恢复的静水压力变化的问题。不规则海面由具有固定波长但可变平均值，波峰和波峰位置的“等效”（有效）规则波近似。有效波浪的特征是通过线性传递函数从不规则海面获得的。分析了所获得的替代波参数的概率性质，并提供了所开发概念的应用实例。

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来源
《Ocean Engineering》 |2008年第18期|p.1811-1825|共15页
作者
Gabriele Bulian;
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作者单位

Department of Naval Architecture, Ocean and Environmental Engineering (DINMA), University of Trieste, Via A. Valeria 10, 34127 Trieste, Italy;

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原文格式 PDF
正文语种 eng
中图分类海洋学;
关键词
grim effective wave; parametric roll; pure loss of stability; stochastic restoring; equivalent wave length;

机译：严峻的有效波;参数横滚;纯稳定性损失;随机恢复;等效波长;

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On An Improved Grim Effective Wave

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