基于QAR数据的民航发动机性能分析  

Performance Analysis of Civil Aviation Engine Based on QAR Data

作　　者：赵军[1] 唐弋棣 ZHAO Jun;TANG Yi-di(Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan Sichuan 618307,China;L.A.Turbine,Valencia California,91355,US)

机构地区：[1]中国民航飞行学院航空工程学院,四川广汉618307 [2]L.A.Turbine涡轮机械公司,加利福尼亚州瓦伦西亚91355

出　　处：《计算机仿真》2020年第7期107-112,共6页Computer Simulation

基　　金：四川省教育厅自然科学项目(16ZB0035);中国民用航空飞行学院科学研究重点基金(ZJ2016-01)。

摘　　要：QAR数据相对于ACARS数据,虽然时效性差一些,却非常全面且监控参数众多。基于典型的民航发动机的飞行QAR数据,对该发动机进行性能分析。排气温度参数显示出爬升阶段的最高值比起飞阶段的最高值还要高,建议航空公司优化飞机爬升曲线,降低爬升阶段的最高值;燃油流量在加速时停滞一下,可以降低燃烧室出口温度的上升速率,进而延长发动机高温部件的寿命、降低发动机维修费用;加速阶段换算燃油流量没有呈现出较好的规律性,换算公式中应采用压气机出口的总压数据;通过对滑油量在一个完整的飞行航段内的变化规律的分析,对于监测滑油量有一定的指导作用。Compared with ACARS data,QAR data have poor timeliness,but they are very comprehensive and have many monitoring parameters.Based on the QAR data of a typical civil aviation engine,the performance of the engine is analyzed.The Exhaust Gas Temperature(EGT)curve shows that the maximum value of climbing stage is higher than that of takeoff stage.It is suggested that airlines optimize the climbing curve to reduce the maximum EGT value of climbing stage.The stagnation of fuel flow during acceleration can reduce the rising rate of combustion chamber outlet temperature,thus prolong the life of high temperature components and reduce engine maintenance costs.There is no good regularity in corrected fuel flow curve in acceleration stage.Total pressure data of compressor outlet should be used in corrected formula.Through the analysis of the variation curve of the lubricating oil quantity in a complete flight phase,it has a certain guiding role for monitoring the lubricating oil quantity.

关 键 词：航空发动机 燃油流量 维修费用 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]