外挂干扰弹投放分离特性研究与优化设计

Research and Optimization Design of the Separation Characteristics of External Decoy Flare

投放作战的干扰弹在与载机分离的过程中,其姿态变化直接影响自身的安全性和稳定性。基于重叠网格,对干扰弹投放分离过程进行数值仿真。干扰弹在投放过程中出现与载机挂架碰撞、投放后姿态发散等问题,通过调整预置舵偏、增加格栅舵等方式,实现1s时间内干扰弹安全分离且姿态不发散。

In the process of separating decoy flare from aircraft,the status change of the decoy flare directly affects its safety and stability.Based on overlapping grid,the separation process of decoy flare is simulated numerically.In the process of launching,the decoy flare has such problems as collision with aircraft rack,status instability,etc.By adjusting the preset rudder deviation and increasing grille rudder,the decoy flare is safely separated and keeps stable within one second.