Volume 28 Issue 7
Jul.  2013
Turn off MathJax
Article Contents
LI Pu, YUAN Qi, GAO Jin, TAN Lu-yi, LI Yi-feng, LIU Hua-feng. Investigation on stiffness of circumferential distributed tie-rod rotor with curvic couplings of trochal disk[J]. Journal of Aerospace Power, 2013, 28(7): 1618-1623.
Citation: LI Pu, YUAN Qi, GAO Jin, TAN Lu-yi, LI Yi-feng, LIU Hua-feng. Investigation on stiffness of circumferential distributed tie-rod rotor with curvic couplings of trochal disk[J]. Journal of Aerospace Power, 2013, 28(7): 1618-1623.

Investigation on stiffness of circumferential distributed tie-rod rotor with curvic couplings of trochal disk

  • Received Date: 2012-07-11
  • Publish Date: 2013-07-28
  • Based on the circumferential distributed tie-rod rotor model with curvic couplings, the stiffness of every part of the rotor was acquired with analytical method. Three-dimensional finite element nonlinear contact method was adopted to analyse the flexural stiffness and torsional stiffness of the curvic couplings after preloading by using the commercial finite element software ANSYS. The stiffness correction coefficient and stiffness nondimensional coefficient were obtained. Coefficient of tie-rod stiffness ratio was adopted to describe the relation between the stiffness of tie-rods and disks. Results show that stiffness correction coefficient keeps steady when the stiffness nondimensional coefficient is less than 1, while it drops abruptly and the coefficient of tie-rod bend stiffness ratio increases when stiffness nondimensional coefficient exceeds 1. This means the preload is not enough and slip between curvic couplings happens. Stiffness nondimensional coefficient reflects some certain stress status of the curvic couplings, providing a basic guide for design and fault diagnosis of gas turbine rotor with curvic couplings.

     

  • loading
  • [1]
    陈崇.大功率交流传动货运机车整体驱动系统研究 [D].成都:西南交通大学,2008. CHEN Chong.Study on the integrality drive system of superpower AC electrical locomotive for wagon [D].Chengdu:Southwest Jiaotong University,2008.(in Chinese)
    [2]
    林公舒,杨道刚.现代大功率发电用燃气轮机[M].北京:机械工业出版社,2007.
    [3]
    金令诚.端齿盘分度装置[M].北京:国防工业出版社,1995.
    [4]
    Bannister R H.Method for modelling flanged and curvic couplings for dynamic analysis of complex rotor constructions[J].Journal of Mechanical Design,1980,102(1):130-139.
    [5]
    Pisani S R,Rencis J J.Investigating CURVIC coupling behavior by utilizing two and three-dimensional boudary and finite element methods[J].Engineering Analysis with Boundary Elements,2000,24(3):271-275.
    [6]
    Richardson I J,Hyde T H,Becher A A,et al.A validation of the three-dimensional finite element contact method for use with curvic couplings[J].Journal of Aerospace Engineering,2002,216(2):63-75.
    [7]
    Yuan S X,Zhang Y Y,Zhang Y C,el al.Stress distribution and contact status analysis of a bolted rotor with curvic couplings[J].Journal of Mechanical Engineering Science.2009,224(9):1815-1829.
    [8]
    Richardson I J,Hyde T H,Becher A A,et al.A three-dimensional finite element investigation of the bolt stresses in an aero-engine curvic coupling under a blade release condition[J].Journal of Aerospace Engineering,2000,214(4):231-245.
    [9]
    尹泽勇,欧圆霞,李彦,等.端齿轴段刚度及其对转子动力特性的影响[J].振动工程学报,1993,6(1):63-67. YIN Zeyong,OU Yuanxia,LI Yan,et al.Stiffness of a shaft section with curvic couplings and its effect on dynamic characteristic of a rotor[J].Journal of Vibration Engineering,1993,6(1):63-67.(in Chinese)
    [10]
    尹泽勇,胡柏安,吴建国,等.端齿连接转子轴向预紧力的确定[J].航空动力学报,1996,9(2):355-357. YIN Zeyong,HU Baian,WU Jianguo,et al.Determination of axial preloads of rotors with curvic couplings[J].Journal of Aerospace Power,1996,9(2):355-357.(in Chinese)
    [11]
    胡柏安,尹泽勇,徐友良.两段预紧的端齿连接转子轴向预紧力的确定[J].机械强度,1999,21(4):274-276. HU Baian,YIN Zeyong,XU Youliang.Determination of axial preloads of rotor with curvic couplings pretightened into two segments[J].Journal of Mechanical Strength,1999,21(4):274-276.(in Chinese)
    [12]
    Tsai Y C,Hsu W Y.A study on the CAD/CAM of curvic couplings [C]//Proceedings of ASME Turbo Expo.Netherlands:ASME,2002:1-6.
    [13]
    刘洛莹.曲齿联轴器齿形最优化之研究[D].台湾:国立中山大学,2002. LIU Luoying.A study on the optimization of tooth profiles for curvic couplings.Taiwan:National Sun Yat-Sen University,2002.(in Chinese)
    [14]
    LIU Heng,CHEN Li,WANG Weimin,et al.Nonlinear dynamic analysis of a flexible rod fastening rotor bearing system [D]//Proceedings of ASME Turbo Expo.Glasgow,UK:ASME,2010:1-10.
    [15]
    GAO Jin,YUAN Qi,LI Pu,et al.Effects of bending moments and pre-tighting forces on the flexural stiffness of contact interfaces in rod-fastened rotors[C]//Proceedings of ASME Turbo Expo.Denmark:ASME,2012:1-9.
    [16]
    李会勋,胡迎春,张建中.利用ANSYS模拟螺栓预紧力的研究[J].山东科技大学学报,2006,25(1):57-59. LI Huixun,HU Yingchun,ZHANG Jianzhong.Study on simulating bolt pretension by using ANSYS[J].Journal of Shandong University of Science and Technology,2006,25(1):57-59.(in Chinese)
  • 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

    Article Metrics

    Article views (2320) PDF downloads(1958) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return