Advanced Search
Volume 41 Issue 9
Sep.  2015
Turn off MathJax
Article Contents
Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(9): 1631-1637.
ZHANG Li, MA Yanhong, LIANG Zhichao, et al. Constraint model and vibration response analysis of rotor rub-impact[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(9): 1631-1637. doi: 10.13700/j.bh.1001-5965.2014.0647(in Chinese)
Citation: ZHANG Li, MA Yanhong, LIANG Zhichao, et al. Constraint model and vibration response analysis of rotor rub-impact[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(9): 1631-1637. doi: 10.13700/j.bh.1001-5965.2014.0647(in Chinese)
shu

Constraint model and vibration response analysis of rotor rub-impact

doi: 10.13700/j.bh.1001-5965.2014.0647
  • 1.

    School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. Collaborative Innovation Center of Advanced Aero-Engine, Beijing 100191, China

  • Received Date: 17 Oct 2014
  • Publish Date: 20 Sep 2015
    Abstract
  • Considering the additional constraints induced by rub-impact, a mechanical model was proposed for typical mechanical characteristic of rub-impact. Based on the constraint model, some characteristics in response such as resonant interval extending, amplitude jumping and contact instability were analyzed. Impact of typical mechanical characteristic parameters on rotor response during rub-impact process was studied. It is found that additional constraint stiffness will cause the extension of the resonant range and instable contact region, while greater friction coefficient between rotor and stator causes the decrease of the vibration response and resonant range. A rub-impact analytical model with structure features of aero-engine was built, numerical simulation shows that in addition to the resonance range extension caused by additional constraints, characteristics of rotor response are closely related to rub location and mode shapes. System's response shows characteristics of quasi-periodic in soft rub-impact, while rotor movement tends unstable and closer to the mechanical model in heavy rub-impact.

     

    • FullText(HTML)
  • loading
    • References(16)
  • [1]
    Li G X,Paidoussis M P.Impact phenomena of rotor-casing dynamical systems[J].Nonlinear Dynamics,1994,5(1):53-70.
    [2]
    Wu X F,Wang D.Irregular period-doubling to chaos to period-decreasing bifurcation in a rotor casing dynamics system[J].Tsinghua Science and Technology,1997,2(3):21-29.
    [3]
    张思进,陆启韶,王琪.转子与定子几何不对中引起的碰摩分析[J].振动工程学报,1998,11(4):115-119.Zhang S J,Lu Q S,Wang Q.Analysis of rub-impact events for a rotor eccentric from the case[J].Journal of Vibration Engineering,1998,11(4):115-119(in Chinese).
    [4]
    Childs D W.Rub-induced parametric excitation in rotors[J].Journal of Mechanical Design,1979,101(4):640-644.
    [5]
    Muszynska A.Stability of whirl and whip in rotor/bearing systems[J].Journal of Sound and Vibration,1988,127(1):49-64.
    [6]
    Muszynska A.Partial lateral rotor to stator rubs[C]//I Mech E Conference Publications (Institution of Mechanical Engineers).London:Institute of Mechanical Engineering,1984:327-335.
    [7]
    杨树华,杨积东,郑铁生,等.基于Hertz接触理论的转子碰摩模型[J].应用力学学报,2003,20(4):61-64.Yang S H,Yang J D,Zheng T S,et al.A new rotor-stator rubbing modal using Hertzian impact-contact theory[J].Chinese Journal of Applied Mechanicics,2003,20(4):61-64(in Chinese).
    [8]
    Sawicki J T,Montilla-Bravo A.Thermal mechanical behavior of rotor with rubbing[J].International Journal of Rotating Machinery,2003,9(1):41-47.
    [9]
    单颖春,刘献栋,何田,等.双转子系统碰摩有限元接触分析模型及故障诊断[J].航空动力学报,2005,20(5):789-794.Shan Y C,Liu X D,He T,et al.Research on the finite element impact-contact analytical model of dual-rotor system and its diagnosis method[J].Journal of Aerospace Power,2005,20(5):789-794(in Chinese).
    [10]
    袁惠群,王德友.非线性碰摩力对碰摩转子分叉与混沌行为的影响[J].应用力学学报,2001,18(4):16-20.Yuan H Q,Wang D Y.Measurement of wave energy dissipated by specific damping capacity[J].Chinese Journal of Applied Mechanicics,2001,18(4):16-20(in Chinese).
    [11]
    袁惠群.转子系统的若干非线性动力学问题及分叉与混沌研究[D].沈阳:东北大学,2000.Yuan H Q.Study on some nonlinear dynamic problems with bifurcation and chaos of rotor system[D].Shenyang:Northeastern University,2000(in Chinese).
    [12]
    袁惠群,李鹤,闻邦椿.发电机转子同步稳定性的非线性分析[J].东北大学学报:自然科学版,2001,22(4):405-408.Yuan H Q,Li H,Wen B C.Research on the nonlinear synchronous stability of generator rotor[J].Journal of Northeastern University:Natural Science,2001,22(4):405-408(in Chinese).
    [13]
    孙政策,徐健学,周桐.碰摩转子中弯扭耦合作用的影响分析[J].应用数学和力学,2003,24(11):1163-1169.Sun Z C,Xu J X,Zhou T.Study on influence of bending torsion coupling in an impacting rub rotor system[J].Applied Mathematics and Mechanics,2003,24(11):1163-1169(in Chinese).
    [14]
    黄文俊,李录平.碰摩转子弯扭耦合振动特性仿真实验研究[J].汽轮机技术,2006,48(1):23-26.Huang W J,Li L P.Simulation experimental study on bending-torsional coupling vibratory characteristics in a contact-rubbing rotor[J].Turbine Technology,2006,48(1):23-26(in Chinese).
    [15]
    张思进,陆启韶.碰摩转子系统的非光滑分析[J].力学学报,2000,32(1):59-69.Zhang S J,Lu Q S.A non-smooth analysis to the rub-impacting rotor system[J].Acta Mechanica Sinica,2000,32(1):59-69(in Chinese).
    [16]
    张思进.机械碰撞运动中的非光滑动力学[M].长沙:湖南大学出版社,2008:2-5.Zhang S J.Non-smooth dynamics in mechanical collison[M].Changsha:Hunan University Press,2008:2-5(in Chinese).
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views(963) PDF downloads(624) Cited by()
    Proportional views
    Related

    Copyright © Journal of Beijing University of Aeronautics and Astronautics

    Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn

    Supported by: Beijing Renhe Information Technology Co., Ltd.    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return