爆炸容器承受内部加载的实验研究  

EXPERMNTAL STUDY ON THE EXPLOSIVE CHAMBERSUNDER INTERNAL BLAST LOADING

作　　者：朱文辉[1] 薛鸿陆[1] 刘仓理[1] 韩钧万[1] 

机构地区：[1]国防科技大学应用物理系,中国工程物理研究院流体物理研究所

出　　处：《爆炸与冲击》1995年第4期374-381,共8页Explosion and Shock Waves

基　　金：中国工程物理研究院院外基金

摘　　要：对两种实验容器在分布和集中装药两钟情形下进行了爆炸加载实验，测量了几个典型位置的应变和压力。对实验结果的分析表明，容器主体环应变中通常只包含少数几种频率成分。容器（Ⅰ）（Ｌ＝２Ｄ）中心位置的环应变中有应变周期性消涨现象，发生了应变增长；而容器（Ⅱ）中心位置的环应变的极大值总在第一个１／４周期到达。偏高中心位置各点的环应变中都表现出应变增长，并且应变增长的程度随着远离中心位置趋向法兰附近（容器端部）而加剧。轴向应变和封头的振动中含存更多的频率成分。Loading experiments were carried out on two model explosive chambers in two cas-es of charge: linear and concentrative charges. Strain and pressure on several typical positionswere measured. Asalysis based on the experimental results disclosed that only a few vibrationmodes play the main role in the hoop strain on the cylinder of chambers. For chamber( Ⅰ) ,hap-pens the strain growth in the strain at the central point,while for chamber(Ⅱ) the maximum val-ue of hoop strain at the correspondent position reachs at the first 1/4 period. The strain growthappears in the hoop strain at all other locations,and the farther the distance from the central point,the more remarkable the strain growth. More frequency components are contained in the axialstrains at cylinder of chambers and polar strain on enclosures.

关 键 词：振动 爆炸容器 应变增长 强度分析 

分 类 号：O383.3[理学—流体力学]