低空大动压级间分离碰撞边界预示方法

以低空大动压级间分离过程为研究对象，基于组合优化策略，研究多种偏差耦合干扰下分离碰撞危险包络优化分析方法。确定分离过程仿真优化的具体流程，并建立低空大干扰条件下级间分离过程动力学模型和仿真模型，最后通过算例对比分析校验模型的合理性与仿真方法的有效性。研究结果表明，通过组合优化策略可快速有效实现对随机偏差耦合干扰下低空大动压分离过程的碰撞危险包络进行定量预示，并为分离系统偏差量控制提供依据。

Prediction Method for Interstage Separation Collision Boundary UnderCondition of Low Altitude and High Dynamic Pressure

Considering the separation process under condition of low altitude and high dynamic pressure，an analysis method for separation collision risk envelop under the interference of various coupled deviations is proposed based on the combinational optimization strategy in this paper. The specific procedure of simulation optimization of the separation process is identified. Dynamics model and simulation model of interstage separation process under low altitude and strong interference are established. Compared with the analysis examples, the rationality of models and the efficiency of the simulation method are validated. Results show that the combinational optimization strategy can quantitatively predict the collision risk envelop of the interstage separation process under low attitude and high dynamic pressure fast and efficiently, also provide a basis for the deviation control of separation system.