飞机地面积/除冰环境模拟与试验研究

Environmental Simulation and Experimental Study of Aircraft Icing and Deicing on Ground

飞机地面积冰是飞机进入冬季安全飞行的重要隐患,很多飞行事故都是因为没有清除飞机表面的积冰而造成的。基于对飞机地面积/除冰的真实环境的分析,在低温湿热试验箱中模拟积/除冰时的大气条件,对机翼积/除冰进行试验研究。通过改变环境温度、除冰液温度、流量、浓度等影响因素,利用光纤式结冰传感器得到不同环境条件下,除冰液参数对除冰过程的影响数据,并对这些数据进行了分析。试验结果表明该装置能有效地模拟飞机地面积/除冰过程,数据分析显示飞机地面结冰过程主要受外界环境温度,湿度(空气的水含量)的影响;对飞机地面除冰来说,除冰液温度参数是除冰效果达到最佳的关键因素。

Aircraft icing on ground is a major danger for flight safety in winter,and numerous flight accidents could attribute to not having cleared the ice on the aircraft body before takeoff.An atmosphere icing weather condition was simulated in a low temperature cabin to imitate aircraft deicing on ground based on the study of aircraft ice mechanism on ground.Then several conditions,such as deicing fluids temperature,flow rate and scale,were changed to study the influencing factors on the aircraft deicing process using fiber-optic icing sensors.Experimental results show that the aircraft deicing simulation environment could effectively simulate the deicing/icing process.Moreover,analysis results reveal that the environment temperature,humidity are the main parameters for the aircraft icing process and the deicing fluids temperature is the key factor to obtain ideal deicing effect.