Chinese Journal of Ship Research, Volume. 19, Issue 2, 128(2024)
Ship structure collision experiments and simplified numerical calculation method
Figures & Tables(35)
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Table 1. Main parameters of cabin structure prototype
View tableView in ArticleTable 1. Main parameters of cabin structure prototype
参数 数值 长度/m 12.0 型宽/m 24.8 高度/m 17.0 吃水/m 10.0 肋骨间距/m 1.5
Table 2. Main parameters of test model
View tableView in ArticleTable 2. Main parameters of test model
参数 数值 参数 数值 长度/m 2.00 结构重量/t 3.65 型宽/m 4.13 压载重量/t 3.58 高度/m 2.83 总重/t 7.23 吃水/m 1.67
Table 3. Mechanical properties of model material
View tableView in ArticleTable 3. Mechanical properties of model material
板厚/mm 杨氏模量 /GPa 泊松比 屈服强度 /MPa 断裂强度 /MPa 密度 /(kg·m−3) 3 206 0.28 393 596 7850 4 206 0.28 368 592 7850 5 206 0.28 350 564 7850
Table 4. Main parameters of impact ship
View tableView in ArticleTable 4. Main parameters of impact ship
参数 数值 参数 数值 船长/m 1.2 结构重量/kg 133 型宽/m 0.4 传感器重量/kg 15 型深/m 0.4 撞击头重量/kg 12 吃水/m 0.31 总重/kg 160
Table 5. Collision test working conditions
View tableView in ArticleTable 5. Collision test working conditions
工况编号 碰撞位置 碰撞速度/(m∙s−1) Ⅰ 肋骨1 0.6 Ⅱ 肋骨2 0.6 Ⅲ 肋骨3 0.6 Ⅳ 肋骨1 0.8 Ⅴ 弱肋位1 0.8 Ⅵ 弱肋位2 0.8
Table 6. Instantaneous collision velocity and fitting acceleration under each working condition
View tableView in ArticleTable 6. Instantaneous collision velocity and fitting acceleration under each working condition
工况编号 拟合函数方差 瞬时碰撞 速度/(m∙s−1) 拟合加速度 /(m∙s−2) Ⅰ-1 0.990 3 0.562 0.086 6 Ⅰ-2 0.991 7 0.530 0.083 9 Ⅱ-1 0.993 4 0.604 0.080 1 Ⅱ-4 0.997 3 0.686 0.091 3 Ⅲ-1 0.988 8 0.589 0.087 5 Ⅲ-2 0.991 8 0.631 0.097 4 Ⅳ-1 0.999 3 1.031 0.098 4 Ⅴ-2 0.999 0 0.813 0.083 0
Table 7. Peak values of impact force response under each working condition
View tableView in ArticleTable 7. Peak values of impact force response under each working condition
工况编号 碰撞位置 瞬时碰撞速度/(m∙s−1) 碰撞力峰值/kN Ⅰ-1 肋骨1 0.562 14.04 Ⅰ-2 肋骨1 0.530 13.09 Ⅱ-1 肋骨2 0.604 12.00 Ⅱ-4 肋骨2 0.686 14.51 Ⅲ-1 肋骨3 0.589 14.16 Ⅲ-2 肋骨3 0.631 14.98 Ⅳ-1 肋骨1 1.031 20.98 Ⅴ-2 弱肋位1 0.813 11.42
Table 8. Test data and equivalent mass under each test working conditions
View tableView in ArticleTable 8. Test data and equivalent mass under each test working conditions
工况编号 碰撞力峰值/kN 拟合加速度 /(m∙s−2) 等效质量/kg Ⅰ-1 14.04 0.086 6 162.2 Ⅰ-2 13.09 0.083 9 155.9 Ⅰ-3 12.90 0.084 6 152.5 Ⅰ-4 13.80 0.089 5 154.3 Ⅰ-5 12.82 0.081 1 158.1 Ⅱ-1 12.00 0.080 1 149.8 Ⅱ-2 10.70 0.070 7 151.3 Ⅱ-3 15.31 0.093 2 164.2 Ⅱ-4 14.51 0.091 3 158.9 Ⅲ-1 14.16 0.087 5 161.8 Ⅲ-2 14.98 0.097 4 153.7 Ⅳ-1 20.98 0.098 4 158.2 Ⅴ-1 14.01 0.085 8 153.8 Ⅴ-2 11.42 0.083 0 156.6 Ⅵ-1 9.50 0.060 1 158.1
Table 9. Numerical simulation calculation value of some test working conditions
View tableView in ArticleTable 9. Numerical simulation calculation value of some test working conditions
工况编号 碰撞力峰值/kN 误差/% 试验值 数值计算值 Ⅰ-2 13.09 13.07 −0.15 Ⅲ-2 14.98 15.20 1.47 Ⅳ-1 20.98 21.31 1.57 Ⅴ-2 11.42 11.07 −3.06
Table 10. Numerical calculation working conditions of simplified analysis model
View tableView in ArticleTable 10. Numerical calculation working conditions of simplified analysis model
工况号 撞击船质量/t 碰撞速度/(m∙s−1) 1 8 1.0 2 8 1.5 3 10 1.0 4 10 1.5 5 16 1.0 6 16 1.5 7 20 1.0 8 20 1.5
Table 11. Peak value of contact force response in numerical calculation of simplified analysis model
View tableView in ArticleTable 11. Peak value of contact force response in numerical calculation of simplified analysis model
工况号 碰撞力峰值/kN feq /N ALE算法 不施加等效阻力 施加等效阻力 1 1 832.17 1 813.04 1 832.28 140 2 2 274.60 2 258.80 2 274.96 200 3 1 928.74 1 905.26 1 928.32 150 4 2 359.38 2 337.98 2 359.22 225 5 2 113.08 2 075.97 2 113.06 200 6 2 554.18 2 509.91 2 555.01 275 7 2 198.01 2 145.81 2 199.07 240 8 2 658.92 2 597.13 2 657.78 290
Table 12. Equivalent resistance corresponding to typical working conditions
View tableView in ArticleTable 12. Equivalent resistance corresponding to typical working conditions
工况编号 碰撞速度/(m∙s−1) 等效阻力/N Ⅰ-2 0.530 5.51 Ⅲ-2 0.631 7.82 Ⅳ-1 0.854 14.33 Ⅴ-2 0.813 12.99
Table 13. Peak value of impact force response under typical working conditions with different methods
View tableView in ArticleTable 13. Peak value of impact force response under typical working conditions with different methods
工况编号 碰撞力峰值/kN 误差/% 碰撞力峰值/kN 误差/% 试验值 ALE算法值 简化计算值 Ⅰ-2 13.09 13.07 −0.15 13.05 −0.31 Ⅲ-2 14.98 15.20 1.47 14.88 −0.67 Ⅳ-1 20.98 21.31 1.57 21.46 2.29 Ⅴ-2 11.42 11.07 −3.06 10.92 −4.38
Table 14. Comparison of calculation duration of two methods
View tableView in ArticleTable 14. Comparison of calculation duration of two methods
计算时长/s 降低率/% ALE算法 简化计算方法 9 694 260 97
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Ange LU, Zitang WANG, Xiangshao KONG, Ying LI, Sangui CHEN, Weiguo WU. Ship structure collision experiments and simplified numerical calculation method[J]. Chinese Journal of Ship Research, 2024, 19(2): 128
Paper Information
Category: Ship Structure and Fittings
Received: Nov. 24, 2022
Accepted: --
Published Online: Mar. 18, 2025
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