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本文提出一种计算中心起爆有限装药尺寸破片战斗部产生的近区空气爆炸波超压的近似方法。战斗部壳体碎片除受爆轰产物的推力及空气反压外,还考虑了碎片形状等因素引起的形阻修正。适当选取形阻修正系数及修正项引入时刻,计算数据与数十公斤装药战斗部近区实验结果十分接近。本文结果表明,爆破战斗部近区空气爆炸波的计算不能采用强爆炸波理论,应当考虑飞片驱动冲击波的模型。
This paper presents an approximate method for calculating overpressure of near-field air blast waves generated by a computational center for initiating a limited charge fragment warhead. Apart from the detonation product thrust and air back pressure, the shell fragments of the warhead also took into account the shape and shape corrections caused by factors such as the shape of the fragments. Appropriate selection of form-factor correction factor and correction of the introduction of time, the calculated data and dozens of kilograms of charge near the experimental results are very close to the warhead. The results of this paper show that the calculation of air blast waves near the blasting warhead can not adopt the theory of strong blast waves, and the model of fly-driven shock waves should be considered.