He Fu, Dai Jinsong, Lin Shengye, Wang Maosen, Su Xiaopeng
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
Chongqing Changan Wangjiang Industry Group Co., Ltd., Chongqing, 401120, China.
Sci Rep. 2024 Mar 29;14(1):7497. doi: 10.1038/s41598-024-58313-2.
Reducing recoil as well as reducing muzzle hazards are important issues in artillery design. This paper presents a barrel gas reflection method for the artillery aiming for efficient recoil reduction while reducing muzzle hazards. The launching process is modeled by coupling the interior ballistic equations and the flow equations of the barrel gas reflection device. The fourth-order Runge-Kutta method was used to solve the model, and the LHS method as well as the Kriging model was used to establish a mapping relationship between the parameters and the effect. To validate the proposed model, shooting experiments are carried out on a 30 mm caliber artillery. The maximum error between the experiment and simulation results was 5.32%. The experiment has demonstrated that the barrel gas reflection method increases the recoil reduction efficiency of artillery by 44.54% and reduces the muzzle hazard by 52.18%. Finally, the barrel gas reflection method can produce effects with the muzzle device at the same time, and it has little effect on the velocity of the projectile muzzle velocity, and it provides a new way of thinking for the development of future artillery recoil reduction technology.
减少后坐力以及降低炮口危险是火炮设计中的重要问题。本文提出了一种用于火炮的身管燃气反射方法,旨在有效减少后坐力的同时降低炮口危险。通过将内弹道方程与身管燃气反射装置的流动方程相耦合来对发射过程进行建模。采用四阶龙格 - 库塔方法求解该模型,并使用拉丁超立方抽样(LHS)方法以及克里金模型来建立参数与效果之间的映射关系。为验证所提出的模型,在一门30毫米口径火炮上进行了射击实验。实验结果与仿真结果之间的最大误差为5.32%。实验表明,身管燃气反射方法使火炮的后坐力减少效率提高了44.54%,并使炮口危险降低了52.18%。最后,身管燃气反射方法可与炮口装置同时产生效果,且对弹丸初速影响较小,为未来火炮后坐力减少技术的发展提供了一种新的思路。