水下目标爆炸毁伤时战斗部相似律仿真与试验

在进行水中兵器战斗部对目标的爆炸毁伤试验时，为了确定能否由缩比战斗部对目标的毁伤效应推广预测原型战斗部，根据相似理论首先确立了战斗部尺寸、冲击波测点距离以及靶板距离采用相同缩比时的几种研究模型，然后通过数值仿真结合水下爆炸试验测试的方法，计算了冲击波压力与靶板应变，并进行了比较分析。结果表明，各研究模型的仿真结果与试验结果吻合较好，各模型对应的冲击波压力与靶板应变之间的偏差都很小，说明满足相似律的缩比模型能够预测原型战斗部对水下目标的爆炸毁伤特性。本文结论为战斗部水下爆炸的威力评估提供了依据。

Simulation and Experimentation on the Similarity Law of Warhead for Destroying Underwater Target

To learn if damage effect of a scale-down torpedo warhead can be used to predict that of a prototype warhead for destroying underwater target,based on the similarity theory,some models are established with same scales in war-head size,testing distance of shock wave,and distance of target plate.The shock wave pressure and target plate strain are calculated and compared by simulation and underwater explosion experiment.The calculation and experiment results coincide well,and the deviations of corresponding shock wave pressure and target plate strain of the models are very small,which indicates that the scale-down models following the similarity law can accurately predict the destroy char-acteristics of the prototype warhead against underwater target.This study may provide a basis for the power evaluation of underwater warhead.