Chinese Journal of Ship Research, Volume. 16, Issue 6, 72(2021)
Ship planned maintenance cost forecasting method through case-based reasoning
Figures & Tables(2)
Table 1. Test case feature attributes and maintenance cost
View tableView in ArticleTable 1. Test case feature attributes and maintenance cost
案例序号 建造费用/美元 空载排水量/t 舰长/m 最大航速/kn 主机数量 舰员数量 基地级维修费用/美元 1 1.076 579×109 5 600 162.46 34 2 455 2.692 4×107 2 9.931 44×108 5 878 166.73 34 2 610 2.860 8×107 3 2.560 798×109 7 015 172.82 30 4 400 5.127 3×107 4 3.525 797×109 57 149 316.69 33 4 2 839 1.046 81×108 5 9.356 686×109 79 600 332.84 30 4 3 200 1.163 12×108 6 8.020 52×108 5 770 171.60 33 4 382 2.984 1×107
Table 2. Comparison of prediction results
View tableView in ArticleTable 2. Comparison of prediction results
案例序号 实船维修费用值[ 14 ]/美元线性回归预测法 RBF神经网络法 本文方法 预测值/美元 相对误差/% 预测值/美元 相对误差/% 预测值/美元 相对误差/% 1 2.692 4×107 3.146 9×107 14.44 2.625×107 2.56 2.489 2×107 8.16 2 2.860 8×107 2.954×107 3.15% 2.691×107 6.31 2.827 3×107 1.18 3 5.127 3×107 5.315 1×107 3.53 6.346×107 19.20 5.950 5×107 13.83 4 1.046 81×108 8.914 5×107 17.43 1.077 7×108 2.92 9.647 3×107 8.51 5 1.163 12×108 1.425 03×108 18.38 1.115 3×108 4.29 1.067 17×108 8.99 6 2.984 1×107 3.155 7×107 5.44 2.366×107 26.12 26.687×107 11.82
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Mingchi LIN, Chengyu WANG, Zheng TANG. Ship planned maintenance cost forecasting method through case-based reasoning[J]. Chinese Journal of Ship Research, 2021, 16(6): 72
Paper Information
Category: Ship Design and Performance
Received: Feb. 8, 2021
Accepted: --
Published Online: Mar. 28, 2025
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