摘要
针对某型发动机高压转子转速摆动故障,详细分析了油门杆稳定时地面和空中多次出现高压转子转速无规则摆动、其他参数随动的故障现象,阐述了高压转子转速受综合电子调节器、燃油系统、转速调节系统等控制的控制原理,剖析故障机理,制定了故障树。结合故障树,列举了进口温度感受附件、综合电子调节器、燃油系统、转速调节系统等4种故障。采用故障树分析法找出故障原因,分析薄弱环节。经对4种故障原因逐条分析,排除了进口温度感受附件、综合电子调节器、燃油系统等因素,确定转速调节系统中加速控制器未完全退出工作是转速摆动的原因。针对波动量较大的发动机,调整加速性至合理范围,进行地面试车和飞行等外场排故验证。结果表明:发动机工作参数正常,高压转子转速摆动现象消失,发动机推力稳定。故障得以排除。
On speed swing of an aeroengine high pressure rotor,the fault phenomenon was analyzed in detail.The control principle of high pressure rotor speed was expounded,the fault mechanism was analyzed,and the fault tree was formulated.Combined with the fault tree,four kinds of causes such as inlet temperature sensing unit fault,integrated electronic regulator fault,fuel system fault,and speed reg⁃ulation system fault were enumerated.After a series of analysis of four kinds of fault causes,it was determined that the acceleration controller did not completely quit work and had the function to control the rotor speed,which was the reason for the speed swing.Aiming at the speed swing aeroengine,the acceleration was adjusted to a reasonable range,and the measures were verified in the ground testing and flight testing.The results show that the engine operating parameters are normal,the speed swing phenomenon disappears,the engine thrust is stable,and the fault is eliminated.
作者
李小彪
马庆岩
张立伟
谷雪花
LI Xiao-biao;MA Qing-yan;ZHANG Li-wei;GU Xue-hua(AECC Shenyang Engine Research Institute,Shenyang 110015,China;Chinese People’s Liberation Army Unit 31434,Shenyang 110000,China)
出处
《航空发动机》
北大核心
2021年第5期62-65,共4页
Aeroengine
基金
航空动力基础研究项目资助。
关键词
高压转子
转速摆动
转速调节系统
加速控制器
航空发动机
high pressure rotor speed swing
speed oscillating
speed regulating system
accelerated controller
aeroengine
