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科技导报
|研究论文
2009
, 27
(0903) :
19
-24
舰艇抗冲瓦整体冲击隔离新概念及其机理研究
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汪玉1 ,华宏星2 ,谌勇2 ,杜俭业1 ,杜志鹏1
作者信息
1.海军装备研究院2.上海交通大学振动、冲击、噪声国家正点实验室
通讯作者:
杜志鹏
New Concept of Ship Anti-Shock Layer in Underwater Explosion Wave Isolation
Affiliations
出版时间: 2009-02-13
文章导航
基于声阻抗失配原理，提出了舰艇抗冲瓦对水下爆炸冲击的整体隔离新概念。采用波动理论和Taylor平板模型，以冲击波在水、覆盖层、空气层、船体钢中的传播过程为研究对象，建立了实心敷设层结构（消声瓦的简化模型）和带空腔敷设层结构（抗冲瓦）的流固耦合模型。利用Abaqus软件建立舰艇抗冲瓦三维冲击响应模型。算例结果表明，抗冲瓦能够很好地隔离水下爆炸冲击波，大大降低船体结构材料应力和加速度冲击响应峰值，并能在广泛的频域内显著降低舰艇冲击响应。
The concept of ship anti-shock layer in underwater explosion wave isolation is developed based on the impedance mismatch theory. Wave equation and Taylor's flat plate model are adopted to derive fluid-structure interaction equations for the solid layer and the cavity layer. The numerical examples indicate that the ship anti-shock layer can isolate the underwater explosion wave from ship hull. The ship hull shock peak stress, acceleration and shock spectrum are attenuated significantly when the ship hull is covered with the anti-shock layer.
汪玉;华宏星;谌勇;杜俭业;杜志鹏.
舰艇抗冲瓦整体冲击隔离新概念及其机理研究.
科技导报,
2009
, 27
(0903)
: 19
-24
.
.
New Concept of Ship Anti-Shock Layer in Underwater Explosion Wave Isolation[J].
Science & Technology Review ,
2009
, 27
(0903)
: 19
-24
.
2009年第27卷第0903期
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文章信息
接收时间：2008-07-04
首发时间：2009-02-13
出版时间：2009-02-13
收稿日期：2008-07-04
修回日期：2009-01-06
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242116917398405753
引用本文
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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