某埋头弹火炮复合型减后坐技术研究

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (5) : 243-252.

冲击与爆炸

某埋头弹火炮复合型减后坐技术研究

彭碧荣 1, 薛晓春*1, 曹永杰 2, 黄磊 1, 余永刚 1

作者信息 +

Composite recoil reduction technology for a certain cased telescoped ammunition gun

PENG Birong1, XUE Xiaochun*1, CAO Yongjie2, HUANG Lei1, YU Yonggang1, WANG Hongjin2

Author information +

文章历史 +

摘要

为解决某40mm埋头弹火炮炮口动能大导致系统后坐力过大的问题，提出一种将炮口制退器、膨胀波技术两者有机结合的复合减后坐技术。基于此技术，建立了埋头弹膨胀波火炮的内弹道方程，分析了其内弹道时期膛内压力、速度和身管受力等随时间的变化规律。并在此基础上，基于三维非定常Navier-Stocks方程，结合动网格技术，对该埋头弹火炮后效期的膛口流场进行了数值模拟，重点揭示了火药燃气流动对制退器受力特性的影响，并对比分析含有该复合减后坐技术与不含该技术的两种埋头弹火炮在整个内弹道及后效期的后坐力和后坐冲量变化特性。研究结果表明：在保持弹丸初速不变的情况下，采用该复合减后坐技术可以有效降低埋头弹火炮的后坐力，将后坐冲量从1720.36 N•s降低至306.04 N•s，减后坐效率达到82.2%。

Abstract

In order to solve the problem of excessive system recoil caused by the large kinetic energy of the muzzle of a 40mm submerged bullet artillery gun, a composite recoil reduction technology that combines the muzzle brake and expanding wave technology is proposed. Based on this technology, the internal ballistic equation of the submerged bullet expanding wave artillery was established, and the change rule of the chamber pressure, velocity and body tube force with time during the internal ballistic period was analyzed. On this basis, based on the three-dimensional non-constant Navier-Stocks equation, combined with the dynamic mesh technology, the numerical simulation of the breech flow field during the after-effect period of the submerged projectile gun is carried out, which focuses on revealing the influence of the gunpowder and gas flow on the force characteristics of the retractor, and comparing and analyzing the recoil and recoil impulse change characteristics of the two submerged projectile guns containing the composite recoil reduction technology and the two types of submerged projectile guns without this technology in the entire internal ballistic path and the after-effect period. The results of the study show that the recoil and recoil impulse of the two types of submerged projectiles with the composite recoil reduction technology and without the technology are analyzed in comparison. The results of the study show that the composite recoil reduction technology can effectively reduce the recoil force of the submerged projectile gun and reduce the recoil impulse from 1720.36 N-s to 306.04 N-s, with a recoil reduction efficiency of 82.2%, while keeping the muzzle velocity of the projectile unchanged.

导出引用

彭碧荣 1, 薛晓春 1, 曹永杰 2, 黄磊 1, 余永刚 1. 某埋头弹火炮复合型减后坐技术研究[J]. 振动与冲击, 2025, 44(5): 243-252

PENG Birong1, XUE Xiaochun1, CAO Yongjie2, HUANG Lei1, YU Yonggang1, WANG Hongjin2. Composite recoil reduction technology for a certain cased telescoped ammunition gun[J]. Journal of Vibration and Shock, 2025, 44(5): 243-252

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