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民航飞机的大量飞行事故发生在起飞和着陆阶段,而风切变等大气扰动现象又是重要的诱因之一。在飞机基本动力学模型的基础上,研究面向民机起降阶段的飞行事故仿真建模。系统推导了含扰动风的近地面飞行动力学模型,建立了用于飞机异常接地过程仿真的起落架模型。结合某型民机的建模数据和飞行记录数据,实现了对该机重着陆和扰动风下擦地复飞的事故过程再现。与飞行记录数据的对比分析表明,模型能够复现实际飞行过程,对飞行安全分析和飞行事故调查具有辅助支持作用。
A large number of civil aircraft flying accidents occurred in the take-off and landing phase, and wind disturbance such as atmospheric disturbance is another important incentive. Based on the aircraft basic dynamics model, the flight accident simulation modeling for civil aircraft take-off and landing stage is studied. The near-surface flight dynamics model with disturbing wind is derived systematically, and the landing gear model used in the simulation of the abnormal grounding of the aircraft is established. Combined with the modeling data and flight record data of a certain type of civil aircraft, it realizes the reconstruction of the accident process of the aircraft that grounded and missed by heavy landing and disturbance wind. The comparative analysis with the flight record data shows that the model can reproduce the actual flight process and plays an auxiliary role in flight safety analysis and flight accident investigation.