空空导弹变胞型弹射分离机构技术研究

Study on Metamorphic Ejection Mechanism for Air-to-Air Missile

为满足战机在全飞行包线下安全发射分离空空导弹,空空导弹相对战机的分离姿态需要大范围自适应可调,现阶段只能产生固定分离姿态的弹射分离机构已不满足要求。针对该问题,提出变胞型弹射分离机构设计概念,在弹射机构特定铰链处采用变胞PR-R运动副代替传统的铰链运动副,实时改变弹射机构前推臂、后推臂对导弹的弹射作用力,从而实现导弹弹射分离姿态的大范围可调。建立变胞型导弹弹射机构的多体动力学模型,进行了动力学仿真分析。结果表明,所提出的变胞型弹射机构设计概念能够大范围调节导弹弹射分离姿态角速度,为机载导弹弹射机构进一步实现实时智能化控制奠定了基础。

The separation attitude of air-to-air missile to fighter should be adjusted adaptively in wide range to meet the missile-aircraft separation requirements under different flight states,but current ejection separation mechanism with fixed separation attitude could not meet the requirements.To solve this problem,a metamorphic ejection separation mechanism is proposed.Metamorphic PR-R kinematic pair is used to replace traditional hinge kinematic pair in the key hinge of ejection separation mechanism,the ejection forces of the front and rear push arm to missile are changed in real time,then missile ejection separation attitude could be adjusted adaptively in wide range.Multi-body dynamics model of metamorphic ejection separation mechanism is established,and the dynamics simulation analysis is carried out.Simulation results shows that the proposed metamorphic ejection separation mechanism could adjust separation attitude in wide range,which lays a foundation for the further realization of real-time intelligent control of the airborne missile ejection mechanism.