为了提高榴弹的射击精度和密集度,设计分层三片式阻力修正机构并验证其可靠性;利用计算流体力学软件对不同弹丸模型进行绕流流场数值模拟,获得其气动力参数;建立基于地面坐标系的质点弹道模型,对弹道修正弹的射程修正能力进行数值计算。结果表明,阻力修正机构能够顺利展开且同步性较好,可以提供51~220m的有效射程修正能力。研究结果可以为一维弹道修正技术研究和工程应用提供帮助。

In order to improve accuracy and precision of shrapnel firing, three piece types drag correction mechanism was designed and its reliability was verified; Computational fluid dynamics software was used for aerodynamic parameters of different projectile model by flow field numerical simulation: Particle trajectory model was established based on ground coordinates and numerical calculation was conducted for trajectory correction projectile shooting range correction capability. Results show that the trajectory correction executive mechanism unfolds smoothly and synchronism is well, and it provides effective correction shooting range 51~220 m. The research results can provide help for one dimension trajectory correction technology research and engineering application.