摘要
为更全面研究半潜船航行耐波性特性,以某5万吨级半潜船为研究对象,分别通过耐波性模型试验、实船试验和三维水动力数值模拟方法研究该半潜船在不同海况下的水动力运动响应,获得非零航速状态下船体垂荡、横摇、纵摇运动响应幅值(Response Amplitude Operator,RAO)响应曲线和两个参考点的垂向、横向加速度统计有义值。计算结果表明装载状态和浪向对该半潜船航行耐波性有较大的影响,实际营运中应避免相关不利因素造成的影响。此外,通过数值模拟与模型试验和实船试验的对比分析,验证数值模拟方法的可靠性,表明该方法可有效地预报半潜船航行耐波性,是半潜船货物绑扎分析有力的技术保障。
The hydrodynamic performance of a 50000 DWT semi-submersible ship under actual sea conditions is researched by Sea Keeping model tests,full-scale experiments and three-dimensional hydrodynamic numerical simulation with the aim of comprehensive understanding the Sea Keeping characteristics of the ship.The hull heave,roll,pitch RAO(Response Amplitude Operator)response curve and the vertical and lateral acceleration statistical significance values of the two reference points are obtained.The calculation results show that the loading state and the wave direction have a great influence on the Sea Keeping of the ship and the relevant unfavorable states should be avoided in actual operation.The validity and accuracy of numerical simulation are verified through the model tests and full-scale tests.It is proved that numerical simulation method can effectively predict the seaworthiness of semi-submersible ships and is a powerful technical guarantee for the analysis of cargo lashing on ships.
作者
刘旭
陈晓明
蔡连财
LIU Xu;CHEN Xiaoming;CAI Liancai(COSCO SHIPPING Specialized Carriers Co.,Ltd.,Guangzhou 510623,China;China Shipbuilding Industry Corporation International Engineering Co.,Ltd.,Beijing 100024,China)
出处
《中国航海》
CSCD
北大核心
2019年第4期29-32,37,共5页
Navigation of China
基金
国家自然基金青年基金(51709213)
关键词
半潜船
耐波性
模型和实船试验
数值模拟
semi-submersible ship
Sea Keeping
model test
full scale test
numerical simulation
