利用数值模拟方法研究导弹冷弹射过程的动力学特性及技术可行性。基于地面气源向发射筒供气推动导弹出筒的冷弹射原理,并借助于虚拟样机技术及有限元方法,在Adams/View中建立单发防空导弹弹射过程刚柔耦合动力学模型。以导轨和滑块配合间隙及风速为变量进行仿真,得到了发射筒振动和导弹扰动情况的动态数据以及不同间隙和风速对导弹离筒姿态的影响。结果表明,风速对导弹冷弹射有较大的影响,合理的配合间隙有利于导弹冷弹射出筒。

Through numerical simulation, missile cold ejection process dynamics and technology feasibility were studied. Based on the theory which relies on air supply from ground air source to push missile departing from the launcher, depending on virtual prototype technology and FEA method, then one air defense missile's ejection process rigid-flexible coupling dynamic simulation model was built in Adams/View. Wind velocity and clearance between slider and guide were defined variables before simulation. The dynamic data of launcher's vibration, missile's disturbance and the influence of different clearance and wind velocity on missile muzzle attitude were obtained. It shows that wind velocity has a greater impact on missile cold ejection, reasonable clearance is conducive to missile cold ejection from launching canister.