直升机发动机装机功率损失试飞研究  

Flight Test Study on the Engines Power Loss of Helicopter

作　　者：沈雳[1] 于琦[1] 郑甲宏[1] 

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《航空科学技术》2015年第3期39-43,共5页Aeronautical Science & Technology

摘　　要：基于涡轴发动机相似理论,结合某样例直升机发动机的装机特点,对装机前后发动机转速NG-P特性进行了对比,对影响变化的因素进行了分析讨论,提出了针对具体的发动机装机位置、飞行状态、飞行环境进行综合装机功率损失的试验思路。Based on the similarity theory of turbine engines and considering the layout feature of the engines on the sample helicopter, comparisons had been made on the NG-P characteristics of the engines before and after assembled to the helicopter, and analysis had been performed on the influential factors. A proposal had been propounded on the helicopter lfight test of engine power loss, which is overall considering the major inlfuential factors including assemble schemes, lfight regimes, lfight environment and so on.

关 键 词：直升机 涡轴发动机 性能 装机功率损失 转速-功率特性 试飞 

分 类 号：V235[航空宇航科学与技术—航空宇航推进理论与工程]