| 装药水下沉底爆炸压力场特性研究 |
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| 引用本文： | 金辉,张庆明,高春生,毛秋丹,溪慧魏.装药水下沉底爆炸压力场特性研究[J].科技导报(北京),2009,27(14):32-37. |
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| 作者姓名： | 金辉 张庆明 高春生 毛秋丹 溪慧魏 |
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| 作者单位： | 金辉,JIN Hui(北京理工大学;爆炸科学与技术国家重点实验室,北京 100081;中国人民解放军91439部队,辽宁大连 116041);张庆明,ZHANG Qingming(北京理工大学;爆炸科学与技术国家重点实验室,北京 100081);高春生,毛秋丹,溪慧魏,GAO Chunsheng,MAO Qiudan,XI Huiwei(中国人民解放军91439部队,辽宁大连,116041) |
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| 摘 要： | 对水下爆炸冲击波进行了概述,分析了影响冲击波传播的因素和球形装药中心起爆时出现驼峰的原因.利用AutoDyn软件对装药在自由场与沉底爆炸二种工况的压力场特性进行了数值模拟,计算中采用透射边界条件代替压力流出边界条件和提高能量守恒误差容许值的办法.仿真结果表明,装药自由场爆炸中,冲击波传播没有方向性;在装药沉底爆炸时,冲击波存在明显的水底反射效应,水底反射对药包上方范围起到增强作用,而对水底附近起削弱作用,当测点与水平夹角大于60°时,冲击波压力峰值增加到一个相对稳定值.
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| 关 键 词： | 沉底爆炸 压力场 水底反射 |
Characteristics of Pressure Field in Ground Explosion |
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| JIN Hui,ZHANG Qingming,GAO Chunsheng,MAO Qiudan,XI Huiwei .State Key Laboratory of Explosion Science , Technology,Beijing Institute of Technology,Beijing ,China .No. Troop of PLA,Dalian ,Liaoning Province,China.Characteristics of Pressure Field in Ground Explosion[J].Science & Technology Review,2009,27(14):32-37. |
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| Authors: | JIN Hui ZHANG Qingming GAO Chunsheng MAO Qiudan XI Huiwei State Key Laboratory of Explosion Science Technology Beijing Institute of Technology Beijing China No Troop of PLA Dalian Liaoning Province China |
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| Institution: | JIN Hui1,2,ZHANG Qingming1,GAO Chunsheng2,MAO Qiudan2,XI Huiwei2 1.State Key Laboratory of Explosion Science , Technology,Beijing Institute of Technology,Beijing 100081,China 2.No.91439 Troop of PLA,Dalian 116041,Liaoning Province,China |
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| Abstract: | Underwater ground explosion with explosive charges has a broad application in national defense and country economic construction,such as hydraulic engineering and water-power engineering and so on.The explosion property shows a great differences for in free field and on ground which is not researched so much at home and abroad at present.Shock wave of underwater explosion is summarized in this paper,and the factors which could affect its propagation are analyzed,as well as the cause of hump wave structure f... |
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| Keywords: | ground explosion pressure field ground reflection |
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