某涡轴发动机空中启动热悬挂分析  

Analysis of Hot Suspension in Air-Start of a Turbo-shaft Engine

作　　者：李宁坤[1] 王朝蓬[1] 

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《工程与试验》2017年第2期49-51,共3页Engineering and Test

摘　　要：通过对某涡轴发动机空中启动过程中出现的转速热悬挂现象进行了分析,给出了启动过程热悬挂的原因是由于突遇紊流导致启动油气比突升,进而压气机失速所造成的。对比试验关键参数,验证了分析的正确性,为同类问题出现时的分析决策提供了参考。Based on the analysis of hot suspension phenomenon in the process of air-start of a turbo- shaft engine, it is found that the hot suspension of the starting process is due to the abrupt raise of oil-gas ratio caused by the sudden turbulence which in turn leads to a compressor stall. Through the comparison of the key parameters, the correctness of the analysis is verified, which provides a reference for the analysis and decision of this kind of problem.

关 键 词：涡轴发动机 空中启动 转速悬挂 

分 类 号：V233.6[航空宇航科学与技术—航空宇航推进理论与工程]