The dual-spin-stabilized projectile’s mechanism of angular motion is analyzed, taking into account the two pairs of fixed-canards. Based on the non-homogeneous terms of the angle of attack (AOA) equation, the gyroscopic stability and precession feature of a double-spinning projectile are theoretically analyzed. The negative AOA is unraveled under the influence of two pairs of fixed-canards. Furthermore, the dual-spin-stabilized projectile’s angular movements, with the lift-canards fixed at different directions, are described; thus, the phenomenon is revealed whereby the deflection of the lift-canards is opposite to that of the projectile correction direction. Then, the Monte Carlo trajectory simulation is used to verify the angular motion law of a dual-spin-stabilized projectile with fixed-canards. The results of the analysis offer a meaningful strategy to control a class of dual-spin-stabilized projectiles that is not limited to the fixed-canard type.

分析了双自旋稳定弹的角运动机理，并考虑了两对固定鸭翼。基于攻角（AOA）方程的非齐次项，对双自旋弹丸的陀螺稳定性和进动特性进行了理论分析。在两对固定鸭翼的影响下，负 AOA 被解开。此外，还描述了双自旋稳定弹丸的角运动，其中升力鸭翼固定在不同的方向；因此，揭示了升力鸭翼的偏转与弹丸校正方向的偏转相反的现象。然后，利用蒙特卡罗弹道仿真验证了固定鸭翼双自旋稳定弹丸的角运动规律。