环肋双层圆柱壳外壳体隔冲性能研究  

Experiment research on anti-shock capability of double ring-stiffened cylindrical shell subjected to underwater explosion

作　　者：冯刚[1] 朱锡[1] 张振华[1] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033

出　　处：《哈尔滨工程大学学报》2010年第10期1271-1277,共7页Journal of Harbin Engineering University

基　　金：国家"973"计划资助项目(51335020101)

摘　　要：针对双层壳体结构外壳对水下爆炸的隔冲影响问题,进行了理论和模型试验研究.用简单平面波理论对双层壳体结构外壳在冲击波作用下的透射特性进行分析,提出了双层圆柱壳外壳透波公式.利用该公式计算的结果与试验结果吻合良好.同时,计算结果表明透波率和透射波能随着外壳板厚的增加而呈指数衰减,而透射波比冲量变化不大.双层圆柱壳小模型水下爆炸试验研究结果表明,透射波峰值压力最多下降到了直达波峰值的66.7%,因此,外壳的厚度对于双层壳体结构的隔冲性能是一个非常重要的因素.The influence of the outer hull on the response of a double hull structure induced by underwater explosion is studied.The simple plane wave theory was introduced to analyze the transmitting shock wave and the response of the structure.The calculation of transmission wave of the double cylindrical shell was carried out.The experiment study of anti-shock capability of the double cylindrical shell was carried on.The results show that the calculation of transmission wave is in quite agreement with the test data.The transmitting wave rate and transmitting wave energy decay in exponential curve with the thickness of the outer hull.The impulse contrast was increased a little.The peak value of transmitting wave was descended by 66.7%.Thickness of the outer hull is an extremely important factor to anti-shock capability of double cylindrical shell.

关 键 词：水下爆炸 双层圆柱壳 隔冲性能 透波率 试验研究 

分 类 号：O382.1[理学—流体力学] U674.703[理学—力学]