为了提高榴弹的射击密集度,设计一种三片花瓣式一维弹道修正机构。以57mm口径旋转稳定弹为研究对象,利用Fluent流体仿真软件,获得了弹丸在不同马赫数、阻力片不同展开高度、不同展开时刻及作用时间的情况下的气动力参数,并通过外弹道程序验证了阻力环的增阻效果。结果表明,当阻力环偏移11mm增阻系数达到5,可提供76~446m的修正距离。研究结果可为一维弹道修正弹技术研究和工程应用提供帮助。

To improve firing density of shrapnel, one-dimensional trajectory correction device with three-petal type was proposed. Taking SOCBT with 57mm aperture as research object, the aerodynamic parameters were obtained with different Mach number, damper developed area, starting and exposure time by fluent fluid simulation and the damp-increasing affection was validated by exterior ballistics program. The results show that increase resistance coefficient reached 5 when damper offset 11mm and provided fix distance with 76~446m. The research results offer reference for one-dimensional trajectory correction technology research and engineering application.