The invention discloses a structure for weakening wall surface reflected waves of underwater explosion. The structure comprises rectangular pyramid wave-absorbing bodies and a bottom plate. A plurality of pores are formed in the surface of each rectangular pyramid wave-absorbing body; the rectangular pyramid wave-absorbing bodies are located on the inner surface of the bottom plate and form a regular wave-absorbing array on the inner surface; and when shock waves reach the wall surface structure, one part of the shock waves are reflected for multiple times in the wave absorbing pores, and the other part of the shock waves are reflected for multiple times in the V-shaped cavity formed by the clipping units. By the adoption of the wall surface structure, reflected shock waves are continuously attenuated in the reflection and propagation process, and finally, the wall surface reflection waves are effectively weakened, so that the influence of the reflection waves on the underwater explosion load aftereffect is reduced. The structure can be applied to weakening wall surface reflected waves during underwater explosion, is used for simulating an experiment of explosion of an explosive in an infinite medium water area, and provides convenient conditions for obtaining a shock wave load curve farther from an explosion source in a limited medium water area experiment.

    本发明公开一种削弱水下爆炸壁面反射波的结构,包括四棱锥吸波体与底板。四棱锥吸波体的表面带有多个孔隙;多个四棱锥吸波体位于底板的内表面,并在内表面形成规则的吸波阵列。当冲击波到达该壁面结构时,一部分在吸波孔隙中多次反射,一部分在削波单元形成的“V”型腔体内多次反射。采用本发明的壁面结构使得反射回的冲击波在反射与传播过程中不断衰减,最终有效削弱壁面反射波的大小,减小反射波对水下爆炸载荷后效的影响。本发明可应用于削弱水下爆炸时的壁面反射波,并用于模拟炸药在无限介质水域爆炸的实验,同时也为有限介质水域实验中获得距离爆源更远的冲击波载荷曲线提供了便利条件。


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    Title :

    Structure for weakening wall surface reflected waves of underwater explosion


    Additional title:

    一种削弱水下爆炸壁面反射波的结构


    Contributors:
    WANG JINXIANG (author) / MA TENG (author)

    Publication date :

    2022-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F42D Sprengen , BLASTING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



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