高速破片撞击下带壳装药响应及防护的试验研究
Experimental Study on Response and Protection of Charge with Shell under High Velocity Fragment Impact
查看参考文献13篇
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文摘
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以25 mm滑膛炮为加载手段,对带有不同厚度护板的装药进行了撞击加载实验,获取了18. 6 g标准破片在1 820~ 1 830 m/s速度下撞击带壳装药时破片和护板的破坏形态及装药反应情况,提出了一种可降低带壳装药反应等级的防护结构。结果表明,防护板厚度为10 mm时,护板破坏形态为直径28 mm的同口径穿孔,贯穿护板后的破片形成若干大质量碎块;当护板厚度增加至16 mm时,护板背面产生了直径37 mm的剥落层,破片碎化为密集的小质量碎片群;相比若干大质量碎块导致的装药燃烧反应,密集的小质量碎片群更易在装药内部形成多个“热点”的叠加,进而使装药发生更为剧烈的爆燃反应;该复合防护结构可有效降低碎片群能量,对装药起到了良好的防护作用。 |
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其他语种文摘
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The impact loading tests of shell charge with different guard plate thickness were carried out using the 25mm smoothbore cannon,the failure modes change and charge reaction state of fragment and guard plate under impacting the charge with shell by 18. 6 g standard fragment at 1820 - 1830m/s velocity were obtained,the charge response degree were observed by high speed photography,and a protective structure that can reduce the reaction grade of the charge with shell was proposed. The results show that when the thickness of front guard plate is 10mm,the failure mode of the front guard plate is same diameter perforation with a diameter of 28mm,and the fragments penetrating the front guard plate form several large quality fragments. When the thickness of front guard plate increases to 16mm,the spalling layer with a diameter of 37mm is formed on the back of front guard plate and the fragments become dense small quality fragment groups. Compared with the charge combustion reaction caused by several large quality fragments,the dense small quality fragment groups are more easily to form multiple hot spots in the charge interior,which will lead to more intense deflagration reaction of the charge. The composite protection structure can effectively reduce the energy of fragment groups and play a good role in protecting the charge. |
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来源
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火炸药学报
,2019,42(2):185-190 【核心库】
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DOI
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10.14077/j.issn.1007-7812.2019.02.014
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关键词
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爆炸力学
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标准破片
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带壳装药
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反应等级
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防护结构
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不敏感弹药
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高速破片
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地址
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1.
西安近代化学研究所, 陕西, 西安, 710065
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陆军装备部航空军代局, 北京, 100036
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-7812 |
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学科
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力学;武器工业 |
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基金
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国家973计划
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文献收藏号
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CSCD:6486149
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