This paper presents a modified analytical model to evaluate the trajectories of various lift separation sabot configurations. The aerodynamic forces acting on the sabot surfaces during a supersonic flight are modeled in the present analytical model by incorporating the pressures on the windward side of the sabot due to the detached/attached shock and its reflections and then integrated using the 3-DoF dynamical equations. The trajectory and the aerodynamic coefficients were obtained for these configurations at a projectile Mach number of 3. The sabot configurations, which include two new designs, are compared with each other and with the conventional free flight trajectory data of the conventional sabots. The mechanical interaction between the sabot and projectile is also addressed in the present work. The comparison shows that the new designs with the aerodynamic surfaces close to the center of gravity, lift-off from the projectile with minimal mechanical interaction compared to a conventional sabot.

本文提出了一种改进的分析模型来评估各种升力分离弹壳配置的轨迹。超音速飞行过程中作用在弹壳表面的空气动力在本分析模型中通过结合因分离/附加激波及其反射引起的弹壳迎风侧的压力，然后使用 3-DoF 动力学方程进行积分. 在弹丸马赫数为 3 时获得了这些配置的弹道和空气动力学系数。包括两种新设计的弹壳配置相互比较，并与常规弹壳的常规自由飞行轨迹数据进行了比较。弹壳和弹丸之间的机械相互作用也在目前的工作中得到解决。