速射迫击炮横倾状态下射击偏差分析

针对横倾状态下速射迫击炮射击精度出现偏差的问题，通过建立速射迫击炮的坐标系，分析横倾前后速 射迫击炮的炮身状态并利用坐标变换，得出横倾状态下速射迫击炮射击偏差量的数学模型。利用Origin 软件，计算 速射迫击炮在不同距离和横倾角下射击时的方向偏差量和距离偏差量。分析结果表明，横倾造成的方向和距离偏差 量，随着射击距离和横倾角的增大而增大，但对于射击精度影响程度不同；距离偏差量较小，除边界射击距离外大 部分可忽略不计，而方向偏差量较大，应予以修正。结果表明，该计算方法和结果可为完善速射迫击炮射表提供 参考。

Firing Deviation Analysis of Rapid-fire Mortar in Heeling State

Aiming at the problem of firing accuracy deviation of rapid fire mortar in the state of heeling, the state of the barrel of rapid fire mortar before and after heeling was analyzed by establishing the coordinate system of rapid fire mortar. The mathematical model of firing deviation of rapid firing mortar in the state of heeling was obtained by coordinate transformation. Origin software was used to calculate the direction deviation and distance deviation of rapid-fire mortar at different distances and angles of attack. The results show that the deviation of direction and distance caused by heeling increases with the increase of shooting distance and heeling angle, but the influence on shooting accuracy is different. The deviation of distance is small and can be ignored except for the boundary firing distance, while the deviation of direction is large and should be corrected. The results show that the calculation method and results can provide reference for improving the firing table of rapid-fire mortar.