多体分离安全边界研究是为了寻找合适的安全设计准则或系统分析方法，为相关专业设计提供参考，以求对安全分离设计提供优化的依据以及解决方案。针对高马赫数前向抛罩分离安全边界展开研究，提出典型保护罩与弹体前向分离安全边界判定准则和保护罩体回追碰撞不等式。安全边界判定准则用于保护罩轴推分离阶段的安全性研究，也可以为分离方案设计、发动机选型等提供依据。回追碰撞不等式建立起自由运动初始时刻运动参数和保护罩运动加速度之间的联系，为预测保护罩后期运动的规律提供了参考。利用安全边界判定准则和回追碰撞不等式可以根据初始状态对保护罩分离过程的安全性进行判别，为分离设计相关专业提供参考。
The purpose of the research on safety boundary of multi-body separation is to find suitable safety design criterion or system analysis method, and to provide reference for relevant professional design, so as to provide optimization basis and solution for safety separation design. In this paper, the safety boundary of high Mach number forward separation of protective shield is studied, and the criterion of safety boundary of typical forward separation between protective shield and projectile and the inequality of back-pursuing collision of protective shield are put forward. The judge criterion of safety boundary can be used to research on the safety of shields during the axial direction separation stage. It can also provide a basis for the design of separation schemes and the selection of engine types. The back-pursuing collision inequality establishes the relationship between the motion parameters at the initial moment of free motion and the motion acceleration of the protective shield, which provides a reference for predicting the later motion of the protective shield. According to the initial state, the safety of the separation process of the protective cover can be judged by using the safety boundary criterion and the back-pursuing collision inequality, which provides reference for the separation design related majors.
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