跑道助航灯光照明效果研究

Study on Lighting Effectof Runway Lights

夜间,飞机航行需要灯光照明指引,以确保夜航着陆安全。目前,在民航内普遍认为,飞机配备的着陆灯会为夜间跑道提供照明,而民航机场配备的助航灯光系统则用作指示信号灯。但在实际运行中,跑道助航灯的发光特性会对机场的跑道照明有一定的贡献。本文以此为出发点,考虑影响跑道灯光照明的四个决定性因素,构型、颜色、光强和有效范围,利用DIAlux Evo仿真,对跑道助航灯的照明效果进行分析。仿真结果表明:机场跑道是低照度环境,所提供的平均照度可以达到飞机滑行时着陆灯的照度要求。但由于跑道的照度均匀性低,跑道的纵向照度值变化明显,会加重飞行员的视觉疲劳。该结论对民用飞机的照明设计具有一定的参考意义。

At night,aircraft navigation needs lighting guidance to ensure the safety of landing at night.At present,it is generally believed in the industry that aircraft landing lights provide lighting for the runway at night,while the navigation aid lighting system equipped in civil aviation airports is used as indicator lights.However,in actual operation,the luminous characteristics of runway navigation lights will contribute to the runway lighting of the airport.Taking this as a starting point,this paper considers four decisive factors affecting runway lighting,such as configuration,color,light intensity and effective range,and analyzes the lighting effect of runway navigation lights by using DIAlux Evo.The simulation results show that the airport runway is in a low illumination environment,and the average illumination provided can meet the illumination requirements of landing lights when the aircraftaxies.However,due to the low lluminance uniformity of the runway,the longitudinal illuminance value of the runway changes obviously,which will aggravate the visual fatigue of pilots.This conclusion has certain reference significance for the lighting design of civil aircraft.