摘要
[目的]为研究某极地破冰船考虑冰阻力和波浪阻力影响时的最优船型,提高其航行性能,[方法]采用Lackenby变换方法对通过参数化建模得到的船体进行参数化变形,采用雷诺平均法对船舶波浪增阻进行预报,采用非线性有限元方法对冰阻力进行计算,并通过Sobol与NSGA-Ⅱ组合优化策略对艏部型线进行协同优化,得到兼顾波浪阻力和破冰阻力的最优船型。[结果]结果表明:采用该优化方法能使船体冰阻力下降23.9%,波浪增阻下降3.4%;优化后的船首型线能有效降低破冰船在波浪和冰区中的阻力,提高船舶航行的经济性和安全性。[结论]研究成果可为破冰船在复杂冰区环境中的航行性能提升提供一定参考。
[Purpose]In order to study the optimal ship type of a polar icebreaker considering the influence of ice resistance and wave resistance,and improve the navigation performance,[Method]Lackenby transformation method is used to parameterize the hull after parametric modeling,the Reynolds average method is used to predict the wave added resistance of the ship,and the nonlinear finite element method is used to calculate the ice resistance.The bow line is collaboratively optimized by the Sobol and NSGA-Ⅱcombination optimization strategy to obtain the optimal ship type that takes into account both wave resistance and ice breaking resistance.[Result]The results show that the proposed optimization method reduces the hull ice resistance by 23.9%and the wave resistance by 3.4%.The optimized bow hull form effectively reduces the resistance of the icebreaker in both wave and ice-covered regions,improving its economic and safety.[Conclusion]The research results can provide some references for improving the navigation performance of icebreakers in complex ice environments.
作者
田明琦
TIAN Mingqi(China National Nuclear Power Co.,Ltd.,Shanghai 200126,China)
出处
《船舶工程》
北大核心
2025年第7期32-42,共11页
Ship Engineering
关键词
破冰船
船首型线优化
波浪增阻
冰阻力
多目标协同优化
icebreaker
optimization of bow line
wave added resistance
ice resistance
multi-objective synergistic optimization
