In this study,we focused on the effect of the underwater explosion parameters of multi-point array explosion.The shock wave and bubble parameters of aggregate charge,two charges,and four charges were measured through an underwater explosion test,and their influence on the explosion power field of charge quantity and array distance was analyzed.Results show that the multi-shock wave collision of array explosion can be approximated to a linear superposition,and the interaction of delayed shock wave can be deemed as the increase of the shock wave baseline.Shock wave focusing and delayed super-position increase the shock wave peak pressure.Compared with the aggregate charge,the greater the number of array explosion points is,the higher the impulse and the gain of the bubble peak pressure are.At the same array distance,the smaller the charge quantity is,the higher the bubble impulse will be.At the same charge quantity,the smaller the array distance is,the higher the bubble impulse will be.The bubble period decreases gradually with the increase of the charge quantity,but the test orientation has little effect on the bubble period.

College of Aerospace Science and Engineering,National University of Defense Technology,Changsha,410073,Hunan,China;Xi'an Modern Chemistry Research Institute,Xi'an,710065,Shaanxi,China;Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions,Changsha,410073,Hunan,China

[1]Hong-Wei Hu;Pu Song;Shuang-feng Guo;Hai-yun Feng;Dao-kui Li-.Shock wave and bubble characteristics of underwater array explosion of charges)[J].防务技术,2022(08):1445-1453

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