Prediction method for buckling of deepwater explosion cylindrical shell based on random forest

FU Gaojun; MA Feng; ZHU Wei; JIA Xiyu; WANG Shuang

doi:10.11993/j.issn.2096-3920.2024-0162

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FU Gaojun, MA Feng, ZHU Wei, JIA Xiyu, WANG Shuang. Prediction method for buckling of deepwater explosion cylindrical shell based on random forest[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0162

Citation:

FU Gaojun, MA Feng, ZHU Wei, JIA Xiyu, WANG Shuang. Prediction method for buckling of deepwater explosion cylindrical shell based on random forest[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0162

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Prediction method for buckling of deepwater explosion cylindrical shell based on random forest

doi: 10.11993/j.issn.2096-3920.2024-0162

Beijing Institute of Technology, State Key Laboratory of Explosion Science and Safety Protection, Beijing 100081

Received Date: 2024-12-10
Accepted Date: 2025-02-12
Rev Recd Date: 2025-01-18

Available Online: 2025-06-10

Abstract

Abstract

Under deep-water explosion conditions, pressure-resistant structures such as cylindrical shells will have a different failure mode from that in shallow water - instability buckling. In order to study the conditions for the occurrence of instability buckling of cylindrical shells under deep water explosion conditions and realize the prediction of the buckling state, a numerical simulation model was firstly established to simulate and analyze the results of the buckling of cylindrical shells under the conditions of different charge amount, blast distance and water depth. Based on the simulation results, a random forest model was designed to predict the buckling state. The results show that under the loading conditions of axial explosion in deep water environment, the cylindrical shell may present two macroscopic responses of unbuckling and buckling, and the prediction model constructed by the random forest algorithm can better realize the prediction of the instability state of the cylindrical shell under the specific structural parameters, and the prediction accuracies under the two structures reach 0.9375 and 0.875 respectively, which can provide references for the study of the buckling conditions of the cylindrical shell.
- deep-water explosion,
- buckling,
- random forest,
- cylindrical shell

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References(13)

References

[1]	COLE R H. Underwater explosion [M]. Princeton, NJ, US: Princeton University Press, 1948.
[2]	GAO Y, WANG S, ZHANG J, et al. Effects of underwater explosion depth on shock wave overpressure and energy[J]. Physics of Fluids, 2022, 34(3): 037108. doi: 10.1063/5.0081107
[3]	王树山. 终点效应学[M]. 北京: 科学出版社, 2019.
[4]	WINDENBURG D F, TRILLING C. Collapse by instability of thin cylindrical shells under external pressure[J]. Transactions of the American Society of Mechanical Engineers, 1934, 56(8): 819-825. doi: 10.1115/1.4019870
[5]	董金鑫, 黄伟佳, 宋丹丹, 等. 深水爆炸作用下耐压圆柱壳的稳定性研究[J]. 舰船电子工程, 2024, 44(05): 147-152. doi: 10.3969/j.issn.1672-9730.2024.05.029 DONG J X, HUANG W J, SONG D D, et al. Research on stability of pressure cylindrical shell under deep water explosion[J]. Ship Electronic Engineering, 2024, 44(05): 147-152. doi: 10.3969/j.issn.1672-9730.2024.05.029
[6]	GUPTA S, MATOSA H, LEBLANC J M, SHUKLA A. Shock initiated instabilities in underwater cylindrical structures[J]. Journal of the Mechanics and Physics of Solids, 2016(5): 188-212.
[7]	SUN W, ZHU T, CHEN P, et al. Dynamic implosion of submerged cylindrical shell under the combined hydrostatic and shock loading[J]. Thin-Walled Structures, 2022, 170: 108574. doi: 10.1016/j.tws.2021.108574
[8]	贾宪振. 基于通用程序的水下爆炸及其对结构作用的数值模拟研究[D]. 南京: 南京理工大学, 2008.
[9]	辛春亮. 有限元分析常用材料参数手册[M]. 北京: 机械工业出版社, 2022.
[10]	LEE E, FINGER M, COLLINS W. JWL Equation of state coefficients for high explosives, UCID-16189 [R]. Lawrence: Lawrence Livermore Laboratory, 1973.
[11]	BOUAMOUL A, BOLDUC M. Characterization of Al 6061-T6 using split Hopkinson bar tests and numerical simulations[C]//22nd International Symposium of Ballistics, Vancouver, Canada: IBC, 2005: 1063-1070 .
[12]	吴浩岩. 深水近场爆炸对圆筒结构的毁伤效应研究[D]. 北京: 北京理工大学, 2023.
[13]	李德聪, 郑绍文, 吴国民. 关于水下中远场爆炸相似律与冲击因子的讨论[J]. 兵工学报, 2015, 36(S1): 46-52. LI D C, ZHENG S W, WU G M. discussion on underwater mid··and far-field explosion similarity laws and impulsive factor[J]. Acta Armamentarii, 2015, 36(S1): 46-52.