某低后坐火炮发射性能及后喷爆破装置延时影响研究

Study on the launching performance of and effects of delay time of back-shotcrete blasting device on a low recoil gun

现代高科技战争对防护工程的威胁越来越大,对防护工程抗侵彻研究中的火炮动能也提出了更高的要求。中大口径常规火炮在用于防护工程试验时,产生的巨大后坐力已经严重制约对防护工程抗侵彻能力的研究。针对该问题,基于膨胀波减后坐原理设计了一种适用于防护工程研究的新型膨胀波低后坐火炮,建立了该低后坐火炮发射过程的两相流内弹道模型,模拟了该低后坐火炮发射过程。在此基础上,进一步分析了后喷爆破装置的延迟时间对于膨胀波火炮的性能影响。结果表明:与常规火炮相比,该低后坐火炮可在保证炮口动能的基础上,大幅降低发射装置的后坐。

With the increasing threat of modern high-tech war to the protective engineering,higher requirements for kinetic energy of guns are also put forward in the penetration research of protective engineering.However,tremendous recoil force generated from conventional and large caliber guns in protective engineering experiments has restricted the research on anti-penetration ability of protective engineering seriously.Aiming at this problem,based on the principle of recoil reduction by rarefaction wave,a new type of low recoil gun with rarefaction wave is designed to be suitable for protective engineering research.The two-phase flow interior ballistic model of the low recoil gun is built and the launching process is simulated.Then,the effect of the delay time of backfire demolition device on the performance of the rarefaction wave gun is further analyzed.The results show that compared with conventional guns,this low recoil gun can reduce the recoil of the launcher significantly while the muzzle kinetic energy is guaranteed.