降雨环境对民航飞行安全影响研究

摘要

建立了降雨的数学模型和降雨影响下的飞机动力学运动模型，基于该模型，仿真研究了不同程度的降雨对飞机纵向飞行特性和短周期模态特性的影响。研究结果表明：降雨率越大，配平迎角越大，飞机的失速迎角余量越小；同时，降雨率越大，动态特性变差越明显。高强度的降雨会对飞行安全构成威胁，需要通过飞行员一定的操纵来提高降雨中的安全性。%Mathematic model of rain and mathematic model of aircraft dynamic on the effects of rain were established. The effects of different intensity rain on longitudinal lfight characteristics of aircraft and short period mode were studied. The results show that the severe rain induces large trim attack angle. Then, the margin of stall angle becomes small. Severe rain deteriorates dynamic characteristics and lfight safety. The handling of pilot is needed to improve the safety of aircraft in the rain.