对转双转子局部碰摩故障实验

推进技术 ›› 2013, Vol. 34 ›› Issue (1): 31-36.

对转双转子局部碰摩故障实验

王四季,廖明夫,蒋云帆,丁小飞

西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072

发布日期:2021-08-15
作者简介:王四季(1981—),男,讲师,博士,研究领域为发动机转子动力学与故障诊断。E-mail:sjwang@nwpu.edu.cn

Experimental Study on Local Rub-Impact Fault of Counter-Rotating Dual-Rotor

School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China

Published:2021-08-15

摘要/Abstract

摘要： 针对航空发动机涡轮机匣的结构特点,设计了一种可以模拟局部碰摩故障的实验装置。利用对转双转子实验器,实验研究了高、低压转子对转时,单独及同时发生局部碰摩的振动特性。结果表明,对转双转子涡轮发生局部碰摩时,静子的振动信号中会出现高倍频、分数倍频及组合频率成分,通过组合频率成分,可以判断是否发生碰摩及碰摩发生的部件。

关键词: 航空发动机;对转双转子;局部碰摩;故障诊断;组合频率

Abstract: According to the structure features of turbine casing, an experimental device which is used to study on local rub-impact fault was designed. When the high and low rotors are counter-rotating , by using the counter-rotating dual-rotor experimental apparatus as platform, the vibration characteristics excited by high rotor local rub-impact fault and low rotor local rub-impact fault were studied through the experiment. The experimental results show that when local rub-impact fault occurs on counter-rotating dual-rotor, there will be high harmonics, low harmonics and combined frequencies in the vibration signal of stator. And the position of the local rub-impact fault can be defined by analyzing the combined frequencies.

Key words: Aeroengine;Counter-rotating dual-rotor; Local rub-impact; Fault diagnosis; Combined frequencies

王四季,廖明夫,蒋云帆,丁小飞. 对转双转子局部碰摩故障实验[J]. 推进技术, 2013, 34(1): 31-36.

参考文献

[1] 王德友.发动机转静子碰摩振动特性的提取与理论研究[D].北京:北京航空航天大学, 1995.
[2] 赵述元,张群岩,李飞行.航空发动机试飞转-静子碰摩故障分析[J].现代机械,2009,(5):24-26.
[3] 邓小文.双盘转子碰摩的弯曲和扭转耦合振动研究[D].西安:西北工业大学,2001.
[4] 朱向哲,袁惠群,李东.摩擦热效应对航空发动机高压转子系统[J].推进技术,0,1(3):366-371.(ZHU Xiang-zhe, YUAN Hui-qun, LI Dong.Friction Thermal Effect on Rubbing Response of a High Pressure Rotor System[J].Journal of Propulsion Technology, 0,1(3).)
[5] 晏砺堂,王德友.航空双转子发动机动静件碰摩振动特征研究[J].航空动力学报, 8,3(2):173-176.
[6] Muszynska A, Goldman P.Chaotic Responses of Unbalance Rotor Bearing Stator Systems with Looseness or Rubs[J].Chaos, Solitons and Fractals, 5,5(9):1683-1704.
[7] 陈果.转子-滚动轴承-机匣耦合系统的不平衡-碰摩耦合故障非线性动力学响应分析[J].航空动力学报, 7,2(10):1771-1778.
[8] 陈果,李成刚,王德友.航空发动机转子-滚动轴承-支承-机匣耦合系统的碰摩故障分析与验证[J].航空动力学报, 8,3(7):1304-1311.
[9] 航空发动机设计手册总编委会.航空发动机设计手册(第19分册)转子动力学及整机振动[M].北京:航空工业出版社, 2000:208-226.
[10] Muszynska A.Rotor-to-Stationary Element Rub-Related Vibration Phenomena in Rotating Machinery [J].Shock and Vibration Digest, 9,1:3-11.
[11] 陈果.带碰摩耦合故障的转子-滚动轴承-机匣耦合动力学模型[J].振动工程学报, 7,0(4):361-368.
[12] 闻邦椿,顾家柳,夏松波,等.高等转子动力学[M].北京:机械工业出版社, 2000.
[13] 胡绚,罗贵火,高德平.反向旋转双转子系统动力特性分析[J].现代机械,2007,(4):45-49.
[14] 张志禹,顾家柳,王月玲,等.碰摩转子系统振动响应的频率特征研究[J].机械科学与技术,2002,21(1):102-107.