为了研究安装鸭舵机构后迫弹的稳定性及修正弹相对于迫弹的气动变化,分别建立了普通迫弹及修正弹模型,并对两种弹丸进行气动与动力学联合仿真。仿真结果表明:修正弹具有足够的稳定储备量,修正弹的升力系数、阻力系数和俯仰力矩系数均大于迫弹,修正弹的射程相比迫弹减小,横偏增加。对修正弹的修正能力进行了研究,其修远和修近的能力为1.84%和1.9%,修左和修右的侧偏变化量为105m和114m。对迫弹弹道修正技术研究有一定的参考作用。

In order to study the stability of the forced projectile and the aerodynamic change of the modified projectile relative to the forced projectile after the installation of the duck rudder mechanism, the models of the common projectile and the modified projectile were established, and the aerodynamic and dynamic simulation of the two kinds of projectiles were carried out. The simulation results show that the modified projectile has enough stable reserve, the lift coefficient, the drag coefficient and the pitch moment coefficient of the modified projectile are all larger than those of the forced projectile, and the range of the modified projectile is smaller than that of the forced projectile, and the transverse deviation is increased. The correction ability of the modified projectile is studied. The ability of the correction and closeness is 1.84% and 1.9% respectively. The deviation of the left and right side changes by 105m and 114m. It has a certain reference effect on the study of the tactics for the correction of the bombshell trajectory.