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由于双旋弹的鸭舵和弹体相对旋转,非对称固定翼鸭舵方位角的改变干扰了双旋弹角运动的周期,如果这个干扰的频率与弹体自由摆动的频率相同就会发生共振,共振的出现使攻角突增或发散,造成飞行不稳,这种不稳定称为共振不稳定。本文分析了双旋静稳定弹角运动方程,讨论了共振不稳定的特性。研究可知,攻角运动的振幅与固定翼鸭舵的转速和双圆运动的两个频率有关,固定翼鸭舵转速的不合理可能引起攻角运动的发散,而保持固定翼鸭舵转速远离双圆运动2个频率可以有效避免双旋弹的共振不稳定。
Due to the relative rotation of the dumboons and the projectile, the azimuth of the asymmetrical fixed-wing duo interfering with the cycle of the double-helix angle motion would resonate if the frequency of the disturbance is the same as the fretting frequency of the projectile , The emergence of resonance so that the sudden increase or divergence attack, causing flight instability, this instability is called resonance instability. In this paper, the equations of motion for the two-gyro-static stabilizer angle are analyzed, and the characteristics of the instability of resonance are discussed. It can be known that the amplitude of attacking angle is related to the rotating speed of the fixed wing and the two frequencies of the double circular motion. The unreasonable speed of the fixed wing can cause the divergence of the angle of attack, while keeping the fixed wing’s rudder speed away from the double Circular motion 2 frequencies can effectively prevent double-helix resonance instability.