一种爆破型战斗部近场非接触爆炸威力分析方法研究

A Study on Explosion Power of Blasting Warhead at Near-field Non-contact Underwater Explosion

选取鱼雷战斗部装药量为修正变量,以实测和仿真计算得到的多个测点的加速度峰值为依据构建目标函数,基于水下爆炸理论和声固耦合方法建立鱼雷战斗部对舰船的近场水下非接触爆炸毁伤模型。通过迭代计算得到与舰船实际毁伤情况较为接近的鱼雷战斗部装药量,进而反映该鱼雷的爆炸威力。该分析方法结合试验数据,综合考虑了舰船结构特征与鱼雷战斗部特征,提高了结果的准确性及可靠性。

Taking torpedo charge weight as correction parameter, the objective function was constructed according to acceleration peaks from the measured and simulated data. Based on the underwater explosion theory and acoustic-structural coupled method, the damage model of torpedo warship at near-field non-contact underwater explosion was built up. The reasonable value of torpedo charge weight was obtained through iterative algorithm, which reflected the explosion power well. Combined with simulation and test data, the structural characteristics of ship and the warhead characteristics of torpedo were considered, which improves the accuracy and reliability of the results.