摘要
多桨船一般会安装更多的附体,这些附体突出于裸船体表面,必将对耐波性能产生影响。以某一多桨船为研究对象,开展了船模在安装5个不同附体组合情况下多个航速的静水横摇自由衰减试验。通过对测试结果分析,获得了不同附体方案横摇阻尼系数的量化结果。并以此为数据输入,采用耐波性三维理论计算软件预报不规则波中该多桨船的运动响应,并选取横浪下的横摇运动,重点分析不同附体方案对多桨船横摇运动的影响。该研究可为多桨船耐波性线性理论预报中横摇阻尼系数的选取以及附体的初步设计提供技术参考。
Multi-screw ships usually have more appendages which extrude outside the bare hull and inevitably influence the ship seakeeping performance. This study carries out free rol! decay tests on a multi-screw ship with five different appendage combinations under different ship speeds in calm water, and obtains quantitative results of the roll damping coefficients corresponding to different appendage schemes by analyzing the test data. When these data are taken as input, the motion responses of the multi-screw ship in irregular waves could be predicted with a 3D seakeeping theoretical computation soRware, and the roll motions in beam waves could be selected to analyze the influence of each appendage scheme on ship roll motions. The study provides reference for the determination of roll damping coefficients of the multi-screw ship seakeeping prediction, as well as for the preliminary design of appendages.
出处
《船舶与海洋工程》
2016年第2期1-3,15,共4页
Naval Architecture and Ocean Engineering
关键词
多桨船
附体
耐波性
船模试验
横摇运动
multi-screw ship
appendage
seakeeping
model test
roli motion
