Research on Directional Reflection Expansion Mechanism of Reducing Recoil Force of Rapid Fire Gun

doi:10.3969/j.issn.1000-1093.2019.12.003

Abstract

Abstract: When the traditional rapid fire gun automatically fires at a high rate, the powder gas that is sprayed backward has a greater impact on the devices and personnel near gun emplacement. A mechanism of reducing the recoil force by directional reflection expansion is proposed. The powder gas is introduced into a directional reflection expansion cavity through several front inclined holes on the gun tube. The recoil force is reduced by a high pressure zone formed by powder gas in front of cavity and its impact on the reflecting surface of the device. The expansion mechanism is analyzed by using the computational fluid dynamics theory. The result shows that the maximum recoil force-reducing efficiency of the device can reach 48.3%, which is equivalent to the existing traditional muzzle attachment of rapid fire gun. The corresponding experimental research was made to verify the correctness of the theoretical analysis. Key

Key words: rapidfiregun, directionalreflectionexpansion, recoilforce, muzzlebrake, aerodynamics

CLC Number:

TJ301

DAI Jinsong, HE Fu, SU Xiaopeng, WANG Maosen, TAN Tian. Research on Directional Reflection Expansion Mechanism of Reducing Recoil Force of Rapid Fire Gun[J]. Acta Armamentarii, 2019, 40(12): 2407-2415.

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第40卷第12期
2019 年12月兵工学报ACTA
ARMAMENTARIIVol.40No.12Dec. 2019

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