直升机高原转场及应急处置预案研究

随着海拔高度的升高,空气密度减少,大气压力降低,直升机的发动机功率和旋翼效率有所下降,整机性能较平原地区会有一定幅度的衰减。又因高原复杂多变的气候情况,奇特多样的地形地貌等不确定因素较多,高原直升机存在较大的试飞安全风险。该文主要对直升机从格尔木转场至拉萨的前期准备、沿途保障和备降场的选择等情况进行阐述、分析,并进行试飞安全风险分析,研究制定应急处置预案,为后续直升机高原转场提供参考。

With the increase of altitude,the air density decreases and the atmospheric pressure decreases,the engine power and rotor efficiency of the helicopter will decrease,and the performance of the helicopter will attenuate to a certain extent compared with the plain area.Because of the complex and changeable climate of the plateau,peculiar and diverse landforms and other uncertain factors,the plateau helicopter has a greater flight test safety risk.This paper mainly expounds and analyzes the preliminary preparation,the guarantee along the way and the selection of the landing site of the helicopter from Golmud to Lhasa,carries on the flight test safety risk analysis,and studies and formulates the emergency disposal plan.to provide reference for the follow-up helicopter transfer at a high altitude.