潜射弹道导弹水中运动过程中产生的空化现象,使弹体力学环境发生变化,对导弹飞行姿态造成严重影响。为了准确分析空化条件下导弹飞行姿态的变化规律,采用定性分析与定量计算相结合的方法,分析了空化现象对导弹运动姿态的影响机理,并对空化条件下弹体的受力情况进行了修正,在Matlab仿真环境下对比计算了空化条件下导弹俯仰姿态的变化情况。结论与试验测绘数据较为接近,可为深入研究潜射弹道导弹水中弹道提供参考和理论依据。

The cavitation phenomenon in the process of underwater motion of submarine launched ballistic missile changes the mechanical environment of missile body and seriously affects the flight attitude of missile. In order to accurately analyze the change rule of the missile’s flight attitude under the cavitation condition, the qualitative analysis and quantitative calculation are used to analyze the influence mechanism of the cavitation phenomenon on the missile’s motion attitude, and the force condition of the missile body under the cavitation condition is modified. The change of the missile’s pitch attitude under the cavitation condition is compared and calculated in the Matlab simulation environment. The conclusion is close to the experimental data, which can provide reference and theoretical basis for the further study of underwater trajectory of SLBM.