航空发动机转子盘腔积油振动故障分析

丁小飞; 曹航; 冯国全; 江建玲

doi:10.13224/j.cnki.jasp.2021.02.012

航空发动机转子盘腔积油振动故障分析

doi: 10.13224/j.cnki.jasp.2021.02.012

丁小飞^1,2,
曹航^1,2,
冯国全^1,2,
江建玲¹

基金项目: 中国科协青年人才托举工程

计量
- 文章访问数: 145
- HTML浏览量: 3
- PDF量: 36
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-02
- 刊出日期: 2021-02-28

Vibration fault analysis of aeroengine rotor disk cavity filled with oil

1.
Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China
2.
Key Laboratory of Impact Dynamics on Aero Engine,Liaoning Province,Shenyang Engine Research Institute,Aero Engine Corporation of China，Shenyang 110015,China

摘要

摘要: 结合工程中航空发动机转子在试验中遇到的积油振动问题,从积油振动理论、动力学特性和振动信号分析方面展开研究,剖析了转子盘腔积液故障机理,获得了所引起转子失稳振动的特征及规律,建立了盘腔积油故障识别的流程和准则,以及其振动监控指导。研究表明:积油在转子临界转速以上的特定区域才会产生明显的次谐波振动,引起转子自激振动,自激振动频率与转子1阶临界转速接近;在临界转速以下,仍以转频振动为主,且积油会导致过临界转速峰值增大;上述故障识别的流程和准则应用在某发动机试验件转子,准确地识别出盘腔积油特征,验证本文研究结论的正确性。
- 盘腔积油 /
- 振动 /
- 动力学特性 /
- 振动信号分析 /
- 转子失稳 /
- 振动监控
Abstract: In combination with the problems of rotor cavity filled with oil vibration encountered in the test of aero engine rotor in the project, the research was carried out from the theory of vibration, dynamic characteristics and vibration signal analysis, and the failure mechanism of rotor disk cavity filled with oil was analyzed. The characteristics and regularity of instability vibration were acquired, the process and criteria for disc cavity fluid accumulation fault identification as well as its vibration monitoring guidance were established. The result showed that the subharmonic vibration was produced when the rotor speed was above the critical speed of the rotor if the rotor cavity was filled with oil, which caused the self-excited vibration of the rotor; and the frequency of the self-excited vibration was close to the first order critical speed of the rotor; and the rotor frequency vibration was still dominant when the rotor speed was below the critical speed, and the oil deposit could cause the increasing peak value of the over critical speed; the above-mentioned fault identification process and criteria were applied to an rotor of an engine to accurately identify the characteristics of rotor cavity filled with oil. Oil was found in the fan's secondary disk cavity when the rotor was dismantled. After cleaning up the oil, the abnormal vibration disappeared, which verified the correctness of the conclusions.
- disk cavity filled with oil /
- vibration /
- dynamic characteristics /
- vibration signal analysis /
- rotor instability /
- vibration monitoring

HTML

参考文献(22)

[1]	刘永泉,王德友,洪杰,等.航空发动机整机振动控制技术分析［J］.航空发动机,2013,39(5):1-8. LIU Yongquan,WANG Deyou,HONG Jie,et al.Analysis of whole aeroengine vibration control technology［J］.Aeroengine,2013,39(5):1-8.(in Chinese)
[2]	李其汉,王延荣.航空发动机结构强度设计问题［M］.上海:上海交通大学出版社,2014.
[3]	廖明夫,刘永泉,王四季,等.中介轴承对双转子振动的影响［J］.机械科学与技术,2013,32(5):641-646. LIAO Mingfu,LIU Yongquan,WANG Siji,et al.The vibration features of a twin spool rotor system with an inter-bearing［J］.Mechanical Science and Technology for Aerospace Engineering,2013,32(5):641-646.(in Chinese)
[4]	郑旭东,张连祥.航空发动机整机振动典型故障分析［J］.航空发动机,2013,39(1):34-37. ZHENG Xudong,ZHANG Lianxiang.Typical failure analysis of aeroengine vibration［J］.Aeroengine,2013,39(1):34-37.(in Chinese)
[5]	陈果,王海飞,刘永泉,等.新型叶片-机匣碰摩模型及其验证［J］.航空动力学报,2015,30(4):952-965. CHEN Guo,WANG Haifei,LIU Yongquan,et al.A new blade-casing rubbing model and its verification［J］.Journal of Aerospace Power,2015,30(4):952-965.(in Chinese)
[6]	陈果,李兴阳.航空发动机整机振动中的不平衡-不对中-碰摩耦合故障研究［J］.航空动力学报,2009,24(10):2277-2284. CHEN Guo,LI Xingyang.Study on imbalance misalignment rubbing coupling faults in aero engine vibration［J］.Journal of Aerospace Power,2009,24(10):2277-2284.(in Chinese)
[7]	张宏献,李学军,蒋玲莉,等.航空发动机双转子系统不对中研究进展［J］.航空学报,2019,40(6):37-48. ZHANG Hongxian,LI Xuejun,JIANG Lingli,et al.A review of misalignment of aero-engine rotor system［J］.Acta Aeronautica et Astronautica Sinica,2019,40(6):37-48.(in Chinese)
[8]	王洪伟,陈果,陈立波,等.一种航空发动机滚动轴承磨损故障监测技术［J］.航空动力学报,2014,29(9):2256-2263. WANG Hongwei,CHEN Guo,CHEN Libo,et al.A fault monitoring technique for wear of aero-engine rolling bearing［J］.Journal of Aerospace Power,2014,29(9):2256-2263.(in Chinese)
[9]	桑潇潇,廖明夫,吴法勇,等.发动机轴承内环装配工艺对转子动力学特性影响的试验研究［J］.推进技术,2015,36(12):1874-1880. SANG Xiaoxiao,LIAO Mingfu,WU Fayong,et al.Experimental study on rotor dynamic behavior dependent on aero-engine bearing inner ring assembly technologies［J］.Journal of Propulsion Technology,2015,36(12):1874-1880.(in Chinese)
[10]	WOLF J A.Whirl dynamics of a rotor partially filled with liquid［J］.Journal of Applied Mechanics,1968,35(4):676-682.
[11]	HENDRICKS S L,MORTON J B.Stability of a rotor partially filled with a viscous incompressible fluid［J］.Journal of Applied Mechanics,1979,46(4):914-918.
[12]	陶明德,张文.部分充液柔性转轴的动力稳定性［J］.复旦学报,1999,38(2):141-145. TAO Mingde,ZHANG Wen.Dynamic stability of flexible rotating cylinder partially filled with liquid［J］.Journal of Fudan University,1999,38(2):141-145.(in Chinese)
[13]	祝长生.支承刚度各向异性部分充液转子系统的稳定性［J］.航空动力学报,2000,15(4):431-434. ZHU Changsheng.Stability of a rotor system on support of anisotropical rigidity and partially filled with an inviscid fluid［J］.Journal of Aerospace Power,2000,15(4):431-434.(in Chinese)
[14]	祝长生.部分充液悬臂柔性转子系统不稳定特性的实验研究［J］.振动工程学报,2003,16(4):453-456. ZHU Changsheng.Experimental investigation into instability of a flexible rotor partially filled with fluid［J］.Journal of Vibration Engineering,2003,16(4):453-456.(in Chinese)
[15]	金业壮,韩清凯,闻邦椿.积油转子系统的仿真［J］.中国工程机械学报,2015,13(2):109-113. JIN Yezhuang,HAN Qingkai,WEN Bangchun.Simulation on product oil rotor system［J］.Chinese Journal of Construction Machinery,2015,13(2):109-113.(in Chinese)
[16]	陈希红.转子系统积油故障的仿真研究［D］.沈阳:东北大学,2008. CHEN Xihong.Simulation research on oil leakage fault of rotor system［D］.Shenyang:Northeastern University,2008.(in Chinese)
[17]	金思勤.转子系统积油和不对中故障的仿真及试验研究［D］.沈阳:东北大学,2009. JIN Siqin.Simulation and experiment research on oil-leakage and misalignment of rotor system［D］.Shenyang:Northeastern University,2009.(in Chinese)
[18]	姜广义,武鹏,张洁.航空发动机腔内积油引发振动故障分析［J］.航空发动机,2013,39(2):75-78. JIANG Guangyi,WU Peng,ZHANG Jie.Vibration failure caused by aeroengine cavity filled with oil［J］.Aeroengine,2013,39(2):75-78.(in Chinese)
[19]	付才高,郑大平,航空发动机设计手册:第19册［M］.北京:航空工业出版社,2000.
[20]	HENDRICKS S L.Stability of a clamped-free rotor partially with liquid［J］.Journal of Applied Mechanics,1986,53(1):166-172.
[21]	王俨剀,张占升,廖明夫,等.基于动力学分析的发动机测振截面选取［J］.航空动力学报,2018,33(6):1446-1455. WANG Yankai,ZHANG Zhansheng,LIAO Mingfu,et al.Section selecting for engine vibration measurement based on dynamic analysis［J］.Journal of Aerospace Power,2018,33(6):1446-1455.(in Chinese)
[22]	廖明夫.航空发动机转子动力学［M］.西安:西北工业大学出版社,2015.