含支承松动故障的弹用涡扇发动机整机振动建模与机匣响应特征

王海飞; 陈果; 廖仲坤; 张璋; 邵伏勇

doi:10.13224/j.cnki.jasp.2015.03.013

含支承松动故障的弹用涡扇发动机整机振动建模与机匣响应特征

doi: 10.13224/j.cnki.jasp.2015.03.013

1. 南京航空航天大学民航学院, 南京 210016;
2. 中国航天科工集团公司飞航技术研究院北京动力机械研究所, 北京 100074

基金项目:

江苏省研究生培养创新工程(KYLX_0295)

国家基础研究项目(613139)

中央高校基本科研业务费专项资金

国家自然科学基金(61179057)

详细信息

作者简介:
王海飞(1986-),男,江苏如皋人,博士生,主要从事转子动力学和航空发动机整机振动建模.

中图分类号: V231.9
计量
- 文章访问数: 1469
- HTML浏览量: 106
- PDF量: 845
- 被引次数: 0
出版历程
- 收稿日期: 2013-10-26
- 刊出日期: 2015-03-28

Modeling for whole missile turbofan engine vibration with support looseness fault and characteristics of casing response

1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Beijing Power Machinery Research Institue, Aerodynamic Missile Technology Academy, China Aerospace Science and Industry Corporation, Beijing 100074, China

摘要

摘要: 针对某型弹用涡扇发动机结构特点,建立了一种转子-支承-机匣整机模型,对转子与机匣采用有限元梁模型,支承采用集总质量模型,引入支承松动故障模型,利用数值积分方法求解耦合系统的响应.基于机匣加速度信号,研究了对称刚度以及不对称刚度模型下松动故障的冲击特征分析.结果表明:①松动故障所引发的机匣加速度时域波形具有上下不对称性冲击特征以及频谱中出现倍频特征;②仿真计算结果与实际弹用涡扇发动机试车数据时域波形特征以及频谱特征非常一致,而且验证了不对称刚度松动故障模型更适合弹用涡扇发动机的松动故障建模.
- 动力学建模 /
- 松动故障 /
- 有限元模型 /
- 松动特征 /
- 支承松动
Abstract: For the structural characteristics of a certain type of missile turbofan engine, a rotor-support-casing whole model established. The rotor and casing were modeled by means of the finite element beam model; the support was modeled by lumped-mass model; support looseness fault model was also introduced. The coupled system response was obtained by the numerical integral method. Impact characteristics of symmetrical stiffness and asymmetric stiffness models were analyzed based on casing acceleration signal. It is found that looseness fault could lead to acceleration time-domain waveform of casing with up-down asymmetrical impact characteristics and multiple frequency characteristics in frequency spectrum. Time-domain waveform and frequency spectrum characteristics of the simulation results and the actual missile turbofan engine test data are very consistent. Asymmetric stiffness looseness model is verified more suitable for missile turbofan engine looseness fault modeling.
- dynamic modeling /
- looseness fault /
- finite element model /
- looseness characteristics /
- support looseness

HTML

参考文献(19)

[1]	Muszynska A,Goldman P.Chaotic responses of unbalanced rotor bearing stator systems with looseness or rubs[J].Chaos,Solitons and Fractals,1995,5(9):1683-1704.
[2]	张靖,闻邦椿.带有两端支座松动故障的转子系统的振动分析[J].应用力学学报,2004,21(3):67-72. ZHANG Jing,WEN Bangchun.Vibration characteristics of a rotor system with pedestal looseness at two supports[J].Chinese Journal of Applied Mechanics,2004,21(3):67-72.(in Chinese)
[3]	段吉安,黄志开.旋转机械松动故障的非线性力学模型[J].中南工业大学学报,2002,33(1):78-81. DUAN Jian,HUANG Zhikai.Nonlinear model of rotor system with loose fault[J].Journal of Central South University of Technology,2002,33(1):78-81.(in Chinese)
[4]	Chu F,Tang Y.Stability and non-linear responses of a rotor-bearing system with pedestal looseness[J].Journal of Sound and Vibration,2001,241(5):879-893.
[5]	刘献栋,何田,李其汉.支承松动的转子系统动力学模型及其故障诊断方法[J].航空动力学报,2005,20(1):54-59. LIU Xiandong,HE Tian,LI Qihan.Dynamic model of rotor system with support loosening and its diagnosis method[J].Journal of Aerospace Power,2005,20(1):54-59.(in Chinese)
[6]	陈果.转子-滚动轴承-机匣耦合系统的不平衡/松动耦合故障非线性动力学[J].机械工程学报,2008,44(3):82-88. CHEN Guo.Nonlinear dynamic of unbalance-looseness coupling faults of rotor-ball bearing-stator coupling system[J].Journal of Mechanical Engineering,2008,44(3):82-88.(in Chinese)
[7]	罗跃纲,杜元虎,任朝晖,等.双跨转子-轴承系统松动-碰摩耦合故障的非线性特性[J].农业机械学报,2008,39(11):180-183. LUO Yuegang,DU Yuanhu,REN Zhaohui,et al.Nonlinear characteristics of two-span rotor-bearing system with coupling faults of pedestal looseness and rub-impact[J].Transactions of the Chinese Society for Agricultural Machinery,2008,39(11):180-183.(in Chinese)
[8]	Lu W,Chu F.Experimental investigation of pedestal looseness in a rotor-bearing system[J].Key Engineering Materials,2009,413/414:599-605.
[9]	Ji Z,Zu J W.Method of multiple scales for vibration analysis of rotor-shaft systems with non-linear bearing pedestal model[J].Journal of Sound and Vibration,1998,218(2):293-305.
[10]	He Y,Chen Z,Guo D,et al.A genetic algorithm based inverse problem approach for pedestal looseness identification in rotor-bearing systems[J].Key Engineering Materials,2003,245/246:115-122.
[11]	Lee W M,Choi Y S.Fault diagnosis of partial rub and looseness in rotating machinery using Hilbert-Huang transform[J].Journal of Mechanical Science and Technology,2008,22:2151-2162.
[12]	Behzad M,Asayeshthe M.Numerical and experimental investigation on vibration of rotors with loose discs[J].Journal of Mechanical Engineering Science,2009,223:1-10.
[13]	Lee A S,Kim B O,Kim Y C.A finite element transient response analysis method of a rotor-bearing system to base shock excitations using the state-space Newmark scheme and comparisons with experiments[J].Journal of Sound and Vibration,2006,297(3/4/5):595-615.
[14]	刘杨,太兴宇,马辉,等.双盘三支撑转子轴承系统松动/碰摩耦合故障分析[J].航空动力学报,2013,28(5):977-982. LIU Yang,TAI Xingyu,MA Hui,et al.Looseness-rubbing coupling fault of dual-disk three-supporting rotor-bearing system[J].Journal of Aerospace Power,2013,28(5):977-982.(in Chinese)
[15]	任朝晖,陈宏,马辉,等.双盘悬臂转子-轴承系统基础松动故障分析[J].农业机械学报,2007,38(11):196-201. REN Zhaohui,CHEN Hong,MA Hui,et al.Pedestal looseness fault analysis of a vertical dual-disk over-hung rotor-bearing system[J].Transactions of the Chinese Society for Agricultural Machinery,2007,38(11):196-201.(in Chinese)
[16]	马辉,太兴宇,汪博,等.松动-碰摩耦合故障转子系统动力学特性分析[J].机械工程学报,2012,48(19):80-86. MA Hui,TAI Xingyu,WANG Bo,et al.Dynamic characteristic analysis of a rotor system with pedestal looseness coupled rub impact fault[J].Journal of Mechanical Engineering,2012,48(19):80-86.(in Chinese)
[17]	MA Hui,ZHAO Xueyan,TENG Yunnan,et al.Analysis of dynamic characteristics for a rotor system with pedestal looseness[J].Shock and Vibration,2011,18(1):13-27.
[18]	陈果.航空发动机整机振动耦合动力学模型及其验证[J].航空动力学报,2012,27(2):242-254. CHEN Guo.A coupling dynamic model for whole aero-engine vibration and its verification[J].Journal of Aerospace Power,2012,27(2):242-254.(in Chinese)
[19]	《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.