关键词: 空空导弹, 越肩发射, 过失速重新定向, 气动/飞行动力学/控制耦合, 动态嵌套网格

Abstract: In order to shorten the response time of air-to-air missile and realize rapid attack on backward target in close combat, a backward-launching method of short range air-to-air missile is developed, which takes advantage of the static instability of missile at large/very large angle of attack, auxiliary jet direct force control and active rudder deflection control. In order to simulate the influence of preset rudder deflection, jet direct force and active rudder deflection control strategy in the new launching method, a high-precision computational fluid dynamics/flight dynamics numerical simulation method coupling with active rudder deflection control strategy based on dynamic Chimera grid was developed in this paper. Numerical simulation results show that the pro-posed method can achieve rapid reorientation of the missile in 1.53s and maintain a stable and controllable attitude at the end of the flipping phase. The new method can reduce the response time of over-the-shoulder launch to about 1/10 of the traditional method.

Key words: air-to-air missile, over-the-shoulder launching, post-stall reorientation, aerodynamics/flight dynamics/control coupling, dynamics chimera grid