Experimental and numerical investigation on the dynamic response of a simplified open floating slender structure subjected to underwater explosion bubble

被引：40

作者：

Gan, N. ^{[1
]}

Liu, L. T. ^{[2
]}

Yao, X. L. ^{[1
]}

Wang, J. X. ^{[2
]}

Wu, W. B. ^{[3
]}

机构：

[1] Harbin Engn Univ, Coll Ship Bldg Engn, Harbin 150001, Peoples R China

[2] Nanjing Univ Sci & Technol, Natl Key Lab Transient Phys, Nanjing 210094, Peoples R China

[3] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

来源：

OCEAN ENGINEERING | 2021年 / 219卷 / 219期

基金：

中国国家自然科学基金;

关键词：

Underwater explosion bubble; Simplified open floating slender structure; Whipping motion; Plastic hinge; Coupled Eulerian-Lagrangian method; INDUCED CAVITATION BUBBLES; HULL; BOUNDARIES; MODEL; WAVE;

D O I：

10.1016/j.oceaneng.2020.108308

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A simplified open floating slender structure is used to investigate the dynamic behaviors of the warship in this paper. The deformation and damage mechanisms of the simplified open floating slender structure subjected to the underwater explosion are studied using the experiment and the Coupled Eulerian-Lagrangian (CEL) method. Firstly, a validation for the CEL method is carried out, where the numerical results agree well with the results in experiment. Subsequently, in order to analyze the deformation and damage characteristics of the simplified open floating slender structure subjected to the underwater explosion, a series of cases for different detonation distances and different charge weights are carried out. In the cases, the results indicate that the deformation and damage of the simplified open floating slender structure are mainly induced by the bubble, and the damage induced by the shock wave is not obvious. For small charge weight and large detonation distance, the whipping motion is the main deformation form of the simplified open floating slender structure. When the charge weight increases or the detonation distance decreases to a critical value, the simplified floating slender structure is damaged in a longitudinal bending mode with a plastic hinge generated in the middle region.

引用

页数：18

共 35 条

[11] On attenuation of floating structure response to underwater shock [J].

Gong, S. W. ;

Lam, K. Y. .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2006, 32 (11) :1857-1877

[12] Transient response of stiffened composite submersible hull to underwater explosion bubble [J].

Gong, S. W. ;

Khoo, B. C. .

COMPOSITE STRUCTURES, 2015, 122 :229-238

[13] General form of the Mie-Gruneisen equation of state [J].

Heuze, Olivier .

COMPTES RENDUS MECANIQUE, 2012, 340 (10) :679-687

[14] Experimental and numerical investigation of the dynamics of an underwater explosion bubble near a resilient/rigid structure [J].

Klaseboer, E ;

Hung, KC ;

Wang, C ;

Wang, CW ;

Khoo, BC ;

Boyce, P ;

Debono, S ;

Charlier, H .

JOURNAL OF FLUID MECHANICS, 2005, 537 :387-413

[15]

Lee E., 1973, JWL EQUATION STATE C

[16]

Lee E.L., 1969, S INT COMBUST, V12, P493, DOI [10.1016/S0082-0784(69)80431-5, DOI 10.1016/S0082-0784(69)80431-5]

[17] Cavitation Bubble Collapse Near a Heated Wall and Its Effect on the Heat Transfer [J].

Liu, Bin ;

Cai, Jun ;

Huai, Xiulan ;

Li, Fengchao .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2014, 136 (02)

[18] Numerical investigation on global responses of surface ship subjected to underwater explosion in waves [J].

Liu, Y. L. ;

Zhang, A. M. ;

Tian, Z. L. ;

Wang, S. P. .

OCEAN ENGINEERING, 2018, 161 :277-290

[19]

Meyers M.A., 1994, DYNAMIC BEHAV MAT, P124, DOI [10.1002/9780470172278, DOI 10.1002/9780470172278.CH5]

[20] A pressure-based, compressible, two-phase flow finite volume method for underwater explosions [J].

Miller, S. T. ;

Jasak, H. ;

Boger, D. A. ;

Paterson, E. G. ;

Nedungadi, A. .

COMPUTERS & FLUIDS, 2013, 87 :132-143

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