不同越障方式对起飞性能影响的实例分析  

An example analysis of the effect of different obstacle-surmounting modes on take-off performance

作　　者：陈红英[1] 徐梦羽 倪茂林 CHEN Hongying;XU Mengyu;NI Maolin(Flight Technology Institute,Civil Aviation Flight University of China,Guanghan 618307,China;Flying Department,China International Airlines Company Limited,Chongqing Branch,Chongqing 401120,China)

机构地区：[1]中国民用航空飞行学院飞行技术学院,广汉618307 [2]中国国际航空股份有限公司重庆分公司飞行部,重庆401120

出　　处：《航空工程进展》2025年第1期127-132,共6页Advances in Aeronautical Science and Engineering

基　　金：中国民用航空飞行学院研究生创新项目基金(X2023-8);民航飞行技术与飞行安全重点实验室自主研究项目(FZ2020ZZ03)。

摘　　要：民用飞机运行时必须考虑一台发动机失效的情况,飞机的最大起飞质量经常受飞机一发失效后越障的性能限制,根据不同的越障方式对其起飞性能进行优化研究以增加最大起飞质量,在运行效益上具有重要意义。对规章定义的起飞航迹进行理论分析,分别计算标准二段、延伸二段、四段越障方式对应的起飞限重,分析限制最大起飞质量的关键因素,并对不同越障方式下的越障余度、爬升梯度和所需的起飞距离进行计算;将不同的距离和梯度进行组合,对各种地形条件进行模拟,计算标准二段和四段越障的起飞限重。结果表明:采用四段越障方式能有效提高飞机的起飞限重,并且障碍物梯度越大,起飞限重提高的越显著。In operation of civil aircraft,the maximum take-off weight is limited by the performance when one en⁃gine fails,and it is of great significance to optimize take-off performance by executing different obstacle-surmounting methods to increase the maximum take-off weight.Based on the theoretical analysis of the take-off flight path defined in the regulations,the take-off weight corresponding to the standard second segment,extended second seg⁃ment,and fourth segment obstacle-surmounting method is calculated,and the key factors of maximum take-off weight are analyzed.The obstacle-surmounting margin,climb gradient,and required take-off distance under different obstacle-surmounting methods are calculated.Different distances and gradients are combined to simulate various terrain conditions,and the take-off weights of standard second segment and forth segment obstaclesurmoun-ting mode in those terrain conditions are calculated.The results show that using of fourth segment obstacle-surmounting method can effectively improve the maximum take-off weight of the aircraft in the plateau ter⁃rain complex airport.And the larger the gradient of the obstacle is,the more significant the improvement is.

关 键 词：一发失效 起飞性能 越障方式 四段越障 

分 类 号：V212.131[航空宇航科学与技术—航空宇航推进理论与工程]