On the non-linearities of ship's restoring and the Froude-Krylov wave load part

被引：20

作者：

Matusiak, Jerzy Edward ^{[1
]}

机构：

[1] Aalto Univ, Sch Sci & Technol, Dept Appl Mech, Espoo, Finland

来源：

INTERNATIONAL JOURNAL OF NAVAL ARCHITECTURE AND OCEAN ENGINEERING | 2011年 / 3卷 / 01期

关键词：

Froude-Krylov pressures; Nonlinear restoring; Stern quartering seas;

D O I：

10.3744/JNAOE.2011.3.1.111

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

When formulating a general, non-linear mathematical model of ship dynamics in waves the hydrostatic forces and moments along with the Froude-Krylov part of wave load are usually concerned. Normally radiation and the diffraction forces are regarded as linear ones. The paper discusses briefly few approaches, which can be used in this respect. The concerned models attempt to model the non-linearities of the surface waves; both regular and the irregular ones, and the non-linearities of the restoring forces and moments. The approach selected in the Laidyn method, which is meant for the evaluation of large amplitude motions in the 6 degrees-of-freedom, is presented in a bigger detail. The workability of the method is illustrated with the simulation of ship motions in irregular stern quartering waves.

引用

页码：111 / 115

页数：5