弹道学报2025，Vol.37Issue(3)：67-76,10.DOI:10.12115/ddxb.2024.06004
单兵火箭压缩气体助推弹射内弹道设计与性能优化
Design and Performance Optimization of Interior Ballistics for Individual Rocket With Compressed Air Ejection
摘要
Abstract
Taking the compressed-air-ejection individual-rocket as the research target,the ballistic model of compressed-air-ejection projectile under different initial pressure of high-pressure chamber,launching-tube length and diameter of high-pressure chamber was established by using overlapping mesh and dynamic mesh technology.Nine working-conditions were set to numerically simulate the launching process of projectile.The results show that for the muzzle velocity of the projectile,the effect of the initial pressure of high-pressure chamber is the most obvious.The larger the initial pressure,the lower the compressed gas energy-utilization-efficiency.The length of the launch tube and the diameter of high-pressure chamber do not affect the compressed-gas utilization efficiency.Based on the simulation results,the system-level design parameters and the application scope with the muzzle velocity of munition as the optimization target were determined,and the response surface fitting-model of second-order polynomials was established,and the suitable structural parameters of the launching system under the minimum initial pressure were solved for a given muzzle velocity,which were compared with the simulation results.It shows that the fitting formula is credible.Utilizing the gas flow work characteristics,the high-pressure chamber,the low-pressure chamber and the connecting transition structure were studied in depth,and the appropriate arc transition size was derived by comparing the air pressure change and the air-flow smoothness.The study can provide a reference for the research of compressed-air-ejection technology for individual rocket.关键词
单兵火箭/内弹道/压缩气体弹射/流固耦合/优化仿真Key words
individual rocket/interior ballistics/compressed gas ejection/fluid-solid coupling/optimization simulation分类
军事科技引用本文复制引用
吉敏思,陈四春,郭着雨,韩硕,莫宗来,李军..单兵火箭压缩气体助推弹射内弹道设计与性能优化[J].弹道学报,2025,37(3):67-76,10.基金项目
企业横向合作项目 （）
