航行体跌落过程是水动力、空气动力与结构物三者的耦合运动水动力问题，入水运动的同时还伴随航行体高频弹性振动，尤其航行体尾部偏置舵板张合具有随机性和较宽的角度变化范围。这给航行体水弹道预测造成了很大困难，需开展航行体缩比试验 研究。通过对大量试验结果分析，得到质心高度、俯仰角及初始角速度与最大下沉深度的关系，为航行体安全发射提供支撑。
The process of vehicle falling is a hydrodynamic problem of coupled motion of hydrodynamic force,aerodynamic force and structure. The entry motion is accompannied by high-frequency elastic vibration of the vehicle, especially the tensile of the biased rudder plate at the tail of the vehicle has a random and wide range of Angle changes, which makes it difficult to predict the water trajectory of the vehicle, and it is necessary to carry out the shrinking ratio test of the vehicle for research. The relationship between the height of center of mass, the Angle of pitch and the initial angular velocity and the maximum sinking depth is analyzed through a large number of test results, which provides support for the safe launch of the vehicle.
2023,45(24): 218-221 收稿日期：2022-12-15
DOI：10.3404/j.issn.1672-7649.2023.24.042
分类号：TJ55
作者简介：袁航李易松(1982-),男,硕士,高级工程师,研究方向为水下发射技术
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