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飞机结冰是威胁飞行安全的重要因素之一,因此对结冰问题的研究显得尤为重要。基于非对称结冰模型,对飞机在结冰条件下的飞行动力学特性进行了仿真研究。提出了一种精确的结冰程度计算模型,建立了飞机非对称结冰模型,模拟了飞机在非对称结冰状态、不同结冰严重程度以及不同飞行阶段对结冰引起的滚转及偏航力矩的动态响应特性,并探讨了结冰对飞机飞行性能的影响。仿真结果表明,非对称结冰使飞机飞行性能恶化,而且飞机在非对称结冰状态下极易偏离正常飞行状态,对飞行安全造成巨大威胁。
Airplane icing is one of the important threats to flight safety, so the research of icing problem is particularly important. Based on the asymmetric icing model, the flight dynamics of the aircraft under icing condition are simulated. An accurate calculation model of icing degree was proposed and an asymmetric icing model was established to simulate the roll and yaw of ice caused by icing in the asymmetric icing condition, severity of icing and different flight phases The dynamic response of the moment, and explores the icing on the aircraft flight performance. The simulation results show that asymmetric icing aggravates the flight performance of the aircraft, and the aircraft can easily deviate from the normal flight status in the asymmetric icing condition, posing a great threat to flight safety.