舱室内爆下舰船结构损伤的一种计算方法

伍星星; 张伦平; 邹浩阳; 张弩; 王海坤; 刘建湖

doi:10.11883/bzycj-2023-0289

舱室内爆下舰船结构损伤的一种计算方法

doi: 10.11883/bzycj-2023-0289

1.
中国船舶科学研究中心，江苏无锡 214082
2.
中国舰船研究设计中心，湖北武汉 430064

基金项目: 国家重点安全基础研究项目（613279）

详细信息

作者简介:
伍星星（1989－　），男，硕士，高级工程师，xingxingwupy@163.com

中图分类号: O383
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- 被引次数: 0
出版历程
- 收稿日期: 2023-08-14
- 修回日期: 2023-12-03
- 网络出版日期: 2023-12-04
- 刊出日期: 2024-03-14

A calculation method for ship structure damage under cabin explosion

1.
China Ship Scientific Research Center, Wuxi 214082, Jiangsu, China
2.
China Ship Development and Design Center, Wuhan 430064, Hubei, China

摘要

摘要: 为了评估舱室内爆多载荷耦合作用下舰船结构的损伤范围，设计了大尺度舱段模型，并开展了舱室内爆毁伤试验，试验后测量了舱室结构的破坏范围及破坏模式，分析了舱室内爆多载荷耦合作用下舰船结构的损伤机理，据此建立了舱室内爆下舰船结构损伤的计算方法。结果表明：(1)舱室内爆下形成的强冲击波载荷和准静态压力载荷可对舰船结构造成大范围的损伤，形成多种破坏模式；(2)舱室内爆下准静态压力载荷是舱室结构损伤破坏的主要毁伤元；(3)建立的舱室内爆载荷下结构损伤变形计算方法可同时考虑强冲击载荷和准静态压力载荷对结构的损伤破坏，理论计算结果与试验结果吻合较好。
- 舱室内爆 /
- 结构损伤 /
- 冲击波载荷 /
- 准静态压力载荷
Abstract: The explosion of missiles penetrating the interior cabin could cause extensive damage to the warship structure. How to evaluate the damage range of the ship structure under the coupling of multiple loads in the inner explosion is a big challenge for engineering researchers. In order to establish a theory method of ship structural damage caused by cabin inner implosion, a large-scale cabin model was designed in this paper, and an inner explosion experiment was carried out on the cabin model. The damage range of the cabin structure was measured and typical failure models were acquired. The damage mechanism of the ship structure under the coupling effect of multiple loads (including extensive shock wave loading and quasi-static pressure loading) under inner implosion was analyzed. Based on experimental results, the theory method of ship structure damage range under inner blast was established. It was indicated that: (1) the cabin model would be subjected to shock wave and quasi-static pressure loadings after the explosive charge was detonated, which led to large area damage and complex failure models; (2) quasi-static pressure was the major destroying element for cabin model damage under inner blast; (3) the theory analysis method proposed by this paper simultaneously considered the coupling effect of shock wave and quasi-static pressure loadings for the damage of the cabin model, the theory results well coincided with the experimental ones. The established calculation method can be applied to evaluate the damage range of ship structure subjected to implosion loading.
- inner blast /
- structural damage /
- shock wave loading /
- quasi-static pressure loading

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图 1 舱段模型结构

Figure 1. Structure of the cabin model

下载: 全尺寸图片幻灯片

图 2 试验模型的破坏模式

Figure 2. Failure modes of the experimental cabin model

下载: 全尺寸图片幻灯片

表 1 舱室内爆下构件的变形

Table 1. Structural deformation of the cabin model under inner explosion

构件名称		变形理论计算值/mm			是否大于短边跨距的20%	试验结果
构件名称		冲击波载荷	准静态压力	联合作用	是否大于短边跨距的20%	试验结果
爆炸当舱	甲板01	95	295	390	否	整体变形未撕裂，最大变形量383 mm
	甲板1	157	550	693	是	整体撕裂大变形
	左右舱壁	49	80	129	是	左舱壁撕裂，右舱壁大变形
	前后舱壁	33	75	108	是	撕裂飞出
爆炸临舱	甲板2	−	240	240	否	整体大变形，变形量265 mm
	左右舱壁	−	48	48	否	整体变形，变形量63 mm
	前后舱壁	−	46	46	否	整体变形，变形量68 mm

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参考文献(9)

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