飞机起落架的动力学建模及仿真

Dynamics Modelling and Simulation of Plane's Landing Gear

起落架的精确建模和仿真对飞机起飞着陆过程的控制律设计有着重要意义。通过对飞机起飞着陆过程中起落架的受力情况进行详细分析,并根据起落架的一些实际物理参数分别求得起落架各轮处的合力和合力矩,建立了起落架的模型,并将此模型应用于某国产战机进行仿真。仿真结果表明,建立的起落架动力学模型较好的反映了飞机在滑跑过程中起落架所受的力和力矩的动态变化情况,比较真实的符合实际物理过程。

The modeling and simulation of plane＇s landing gear are very important to design the law of taking off and landing The force of landing gear enduring in the process of taking off and landing was analyzed, and each force and moment was calculated according to the actual physical parameter of landing gear. After establishing the model of landing gear, the model in the simulation of some battle plan of otn： country was applied. The simulation result indicates this model appropriately reflects the change of force and moment in the process of plane＇s taking off and landing and it is actual in the physical process.