Chinese Journal of Ship Research, Volume. 20, Issue 2, 203(2025)
Numerical simulation of vibration and noise characteristics of water entry impact of amphibious aircraft
Figures & Tables(27)
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Table 1. Related parameters for aluminum alloy
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材料 密度/（kg·m−3） 杨氏模量/MPa 剪切模量/MPa 泊松比 铝合金 2 850 71 26.69 0.33
Table 2. Dimensions of the model for the amphibious aircraft and fluid domains
View tableView in ArticleTable 2. Dimensions of the model for the amphibious aircraft and fluid domains
模型 长度/m 宽度/m 高度/m 空气域 300 60.0 6.0 水域 300 60.0 12.0 两栖飞机 37 38.8 4.6
Table 3. Mesh independence verification
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网格数量/万 垂向过载 纵向速度/（m·s−1） 横向加速度/（m·s−2） 60 0.782 7.611 −0.419 75 0.796 7.624 −0.422 96 0.792 7.626 −0.421
Table 4. List of parameter values
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参数 黏附状态 分离状态 A 0.900 0.830 B 2.000 2.150 C 0.346 0.170
Table 5. Maximum flow velocity on the surface of the plate-shell subsystems
View tableView in ArticleTable 5. Maximum flow velocity on the surface of the plate-shell subsystems
板壳子系统 最大来流速度/（m·s−1） 板壳子系统1，2 26.410 板壳子系统3，4 5.294 板壳子系统5，6 13.210 板壳子系统7，8 18.490 板壳子系统9，10 10.570
Table 6. Maximum impact velocity of each bottom plate at different entry speeds
View tableView in ArticleTable 6. Maximum impact velocity of each bottom plate at different entry speeds
板壳子系统 前飞速度10 m/s 前飞速度15 m/s 前飞速度20 m/s 板壳子系统1，2 16.090 26.410 32.490 板壳子系统3，4 6.454 5.294 6.507 板壳子系统5，6 14.490 13.210 16.250 板壳子系统7，8 9.667 18.490 22.750 板壳子系统9，10 4.847 10.570 9.755
Table 7. Maximum impact velocity of each bottom plate at different entry angles
View tableView in ArticleTable 7. Maximum impact velocity of each bottom plate at different entry angles
板壳子系统 入水角度3° 入水角度4° 入水角度5° 板壳子系统1，2 26.370 26.41 27.210 板壳子系统3，4 7.942 5.294 8.168 板壳子系统5，6 5.307 13.21 16.330 板壳子系统7，8 2.674 18.49 10.890 板壳子系统9，10 1.023 10.57 10.890
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Jiawei XU, Tianyi HANG, Zehao LIANG, Daobin CHANG, Shi HU, Haichao LI. Numerical simulation of vibration and noise characteristics of water entry impact of amphibious aircraft[J]. Chinese Journal of Ship Research, 2025, 20(2): 203
Paper Information
Category: Ship Design and Performance
Received: Jul. 27, 2023
Accepted: --
Published Online: May. 15, 2025
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