摘要
利用基于三维势流理论的Wasim软件,系统研究了在不同海况下大型豪华邮轮的耐波性能及作用在救生艇上的砰击载荷。首先计算豪华邮轮在规则波和不规则波中的运动响应,分析航速、浪向和海况对豪华邮轮运动响应的影响规律,然后计算救生艇在不同海况下砰击载荷的变化规律,根据变化规律评估救生艇在实际航行中的安全性。结果表明:豪华邮轮运动响应幅值随着航速和海况的增大整体呈增大趋势,规则波中横摇运动响应幅值在浪向90°时最大;当豪华邮轮处于4级和6级海况时救生艇不发生砰击;当豪华邮轮处于8级海况且航速大于10.29 m/s时救生艇发生砰击,为保证救生艇的安全,邮轮应避免在浪向120°和浪向150°下航行,此时建议邮轮以低于12.35 m/s的航速迎浪180°航行。
In the present research,Wasim software based on 3D potential flow theory is used to systematically study the seakeeping performance of a large luxury cruise ship under different sea conditions and slamming loads acting on lifeboats.Firstly,the motion response of the luxury cruise ship in regular wave and irregular wave is calculated,and the influence law of speed,wave direction and sea state on the motion response of the luxury cruise ship is analyzed.Then,the variation law of slamming load of lifeboat in different sea states is calculated,and the safety of lifeboat in actual voyage is evaluated according to the variation law.The results show that the amplitude of motion of luxury cruise ship shows an overall increasing trend with the increase of speed and sea condition,and the amplitude of roll motion response in regular wave is maximum when the wave direction is 90°.Lifeboats don't suffer slam when the luxury cruise ship is in sea states 4 and 6;when the luxury cruise ship is in sea state 8 and the speed is more than 10.29 m/s,the lifeboat is slammed.In order to ensure the safety of the lifeboat,the cruise ship should avoid sailing in the wave direction of 120°and 150°.It is recommended that the cruise ship sail at a speed of less than 12.35 m/s in the wave direction 180°.
作者
张宏绪
张新曙
黄昊
张志恒
ZHANG Hongxu;ZHANG Xinshu;HUANG Hao;ZHANG Zhiheng(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;CSSC Cruise Technology Development Co.,Ltd.,Shanghai 200120,China)
出处
《海洋工程》
CSCD
北大核心
2023年第6期87-99,共13页
The Ocean Engineering
关键词
豪华邮轮
耐波性
救生艇
砰击载荷
势流理论
luxury cruise ship
seakeeping
lifeboats
slamming load
potential flow theory
