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本文对推导出的空投鱼雷雷伞系统三维空间弹道方程进行了无量纲化，并讨论了具有特定物理意义的参数，对雷伞系统纵向和横向小扰动稳定性的影响进行了分析，从而获得了空中运动稳定性准则，为雷伞系统稳定性的设计提供了理论基础。并对初始投雷条件对雷伞系统五自由度弹道的影响进行了全面的研究，其结果可为空投鱼雷气动减速器的研制提供参考。
In this paper, the three-dimensional space trajectory equation of the aerial parachute system is numerically dimensioned and the parameters with specific physical meaning are discussed. The influence of the longitudinal and transverse perturbation stability of the radar system is analyzed. The criteria for the stability of air movement provide the theoretical basis for the design of the stability of the radar system. The influence of the initial lightning conditions on the five-degree-of-freedom trajectory of the radar system has been studied comprehensively. The results can provide reference for the development of air-dropped torpedo aerodynamic speed reducer.