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兵工学报 ›› 2019, Vol. 40 ›› Issue (12): 2407-2415.doi: 10.3969/j.issn.1000-1093.2019.12.003

• 论文 • 上一篇    下一篇

速射火炮定向反射膨胀减后坐力机理研究

戴劲松1, 何福1, 苏晓鹏2, 王茂森1, 谭添1   

  1. (1.南京理工大学 机械工程学院, 江苏 南京 210094; 2.国营第152厂, 重庆 400071)
  • 收稿日期:2019-01-19 修回日期:2019-01-19 上线日期:2020-02-14
  • 作者简介:戴劲松(1968—),男,研究员,博士生导师。E-mail:djs101@163.com
  • 基金资助:
    兵器装备联合基金项目(6141B02040201)

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

DAI Jinsong1, HE Fu1, SU Xiaopeng2, WANG Maosen1, TAN Tian1   

  1. (1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China; 2.State-owned No.152 Factory, Chongqing 400071, China)
  • Received:2019-01-19 Revised:2019-01-19 Online:2020-02-14

摘要: 传统速射火炮在高射速连发射击时,膛口装置后喷的气体对炮位附近装置和人员影响较大,为此提出定向反射膨胀减小后坐力机理。通过身管上多个前倾斜孔将火药气体引入封闭定向反射膨胀腔室中,利用火药气体在定向反射膨胀腔室前部形成的高压区及其对装置反射面的冲击作用,达到减小火炮后坐力的目的。运用计算流体力学理论分析了该机理,通过分析计算得到装置的减后坐力最大效率为48.3%,与现有速射火炮膛口装置制退器的效率相当且无向斜后方喷射的气体。开展了相应的实验研究,验证了理论分析的正确性。该机理具有广泛适用性,可为速射火炮降低后坐力提供新的思路。

关键词: 速射火炮, 定向反射膨胀, 后坐力, 膛口制退, 气体动力学

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

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