• Chinese Journal of Ship Research
  • Vol. 19, Issue 6, 97 (2024)
Shichao WANG and Gang LIU
Author Affiliations
  • School of Naval Architecture Engineering, Dalian University of Technology, Dalian 116024, China
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    DOI: 10.19693/j.issn.1673-3185.03998 Cite this Article
    Shichao WANG, Gang LIU. Efficient ship hull multi-objective optimization method considering ice resistance and calm water resistance[J]. Chinese Journal of Ship Research, 2024, 19(6): 97 Copy Citation Text show less
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    参数原船型模型船
    船长/m230.000 04.367 1
    船宽/m32.200 00.611 4
    吃水/m10.800 00.205 1
    排水体积/m352 030.000 00.356 2
    缩尺比1.000 052.667 0
    Table 1. Main parameters of KCS ship
    网格密度网格数碎冰阻力误差/%静水阻力误差/%
    87.20×10476.67196.93
    167.47×1048.462.74
    340.14×1042.352.79
    Table 2. Grid independence verification results
    模型$ R^{2} $
    训练集测试集
    ANN0.698 40.637 1
    XGBoost0.987 00.842 0
    Table 3. Performance comparison between XGBoost model and ANN model
    变形区域设计变量移动方向变形范围/m
    球鼻艏区域$ x_{1} $z[−0.09, 0.09]
    $ x_{2} $x[−0.15, 0.15]
    $ x_{8} $$ y $[−0.10, 0.10]
    水线截面区域$ x_{3} ~ x_{6} $y[−0.10, 0.10]
    艏柱角$ x_{7} $x[−0.15, 0.15]
    Table 4. Design variables and their range of deformation
    参数数值参数数值
    x1/mm−82.51x5/mm98.99
    x2/mm−26.60x6/mm32.02
    x3/mm−82.51x7/mm−148.50
    x4/mm33.56x8/mm−99.00
    Table 5. Optimized hull form parametes
    船型静水阻力Rc /N静水阻力变化幅值/%碎冰阻力Ri /N碎冰阻力变化幅值/%
    原始6.8720.32
    优化6.71−2.3218.17−10.58
    Table 6. Comparison of resistance calculation results between original and optimized hull forms
    Shichao WANG, Gang LIU. Efficient ship hull multi-objective optimization method considering ice resistance and calm water resistance[J]. Chinese Journal of Ship Research, 2024, 19(6): 97
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