航空发动机吞砂试验技术浅析

Technical Analysis of Sand Ingestion Test on Aero-engine

军用飞机在沙漠地区和浓烟浓雾地区执行任务时,航空发动机往往会吸入大量的砂粒和灰尘。这些砂粒和灰尘会磨蚀航空发动机压气机叶片,以及堵塞涡轮叶片冷却通道,使航空发动机的性能降低、维修成本增加。通过对航空发动机吞砂试验的技术研究,了解国内外航空系统对吞砂试验的工作要求、试验方法,以及试验介质等方面的相关规定,为后期开展的航空发动机吞砂试验提供技术支持。

When military aircraft carry out missions in desert areas and dense smoke areas,aero-engines often suck in a mass of sand and dust.The sand and dust erode the aero-engine compressor blades and clog the turbine blades cooling channels,it reduce the performance of the aero-engine and increase maintenance costs.Technical research of sand ingestion test on aero-engine are carried out to understand work requirements,test methods,regulations and difference of test medium in sand ingestion test of the domestic and international air system,it provides technical support for aero-engine sand swallowing test which will be carried out in the late stage.