留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

一种关于静压气体轴承节流孔系数的计算方法

张建波 焦春晓 邹冬林 塔娜 饶柱石

张建波, 焦春晓, 邹冬林, 塔娜, 饶柱石. 一种关于静压气体轴承节流孔系数的计算方法[J]. 航空动力学报, 2019, 34(4): 787-795. doi: 10.13224/j.cnki.jasp.2019.04.007
引用本文: 张建波, 焦春晓, 邹冬林, 塔娜, 饶柱石. 一种关于静压气体轴承节流孔系数的计算方法[J]. 航空动力学报, 2019, 34(4): 787-795. doi: 10.13224/j.cnki.jasp.2019.04.007
A calculation method for solution of discharge coefficients in aerostatic bearing[J]. Journal of Aerospace Power, 2019, 34(4): 787-795. doi: 10.13224/j.cnki.jasp.2019.04.007
Citation: A calculation method for solution of discharge coefficients in aerostatic bearing[J]. Journal of Aerospace Power, 2019, 34(4): 787-795. doi: 10.13224/j.cnki.jasp.2019.04.007

一种关于静压气体轴承节流孔系数的计算方法

doi: 10.13224/j.cnki.jasp.2019.04.007
基金项目: 国家自然科学基金(11802175)

A calculation method for solution of discharge coefficients in aerostatic bearing

  • 摘要: 基于层流边界层方程的分离变量算法和雷诺方程的解析算法,提出了一种关于单节流孔静压气体止推轴承的节流孔系数的计算方法。该方法通过比较层流边界层方程计算获得的气体轴承的质量流量和雷诺方程计算获得的质量流量计算获得了节流孔系数。将计算获得的节流孔系数和节流孔系数为常数0.8代入单节流孔气体止推轴承的雷诺方程中,计算获得的承载力与分离变量算法求解层流边界层方程获得的承载力进行对比,可以发现,相对于采用节流孔系数为0.8来说, 采用该计算的节流孔系数求解雷诺方程的承载力与分离变量算法求解获得的承载力结果精度最大提高了8%。从而验证了该计算节流孔系数方法的正确性。

     

  • [1] 刘暾,刘育华,陈世杰.静压气体润滑[M].哈尔滨:哈尔滨工业大学出版社,1990.
    [2] POWELL J W.Design of aerostatic bearings[M].London:Machinery Publishing,1970.
    [3] HAN D,TANG C,HAO L,et al.Experimental studies on the effects of bearing supply gas pressure on the response of a permanent magnet disk-type motor rotor[J].Journal of Mechanical Science and Technology,2016,30(11):4887-4892.
    [4] BELFORTE G,RAPARELLI T,VIKTOROV V.Discharge coefficients of orifice-type restrictor for aerostatic bearings[J].Tribology International,2007,40(3):512-521.
    [5] LIU Z S,ZHANG G H,XU H J.Performance analysis of rotating externally pressurized air bearings[J].Journal of Engineering Tribology,2009,223(4):653-663.
    [6] WANG X,XU Q,WANG B,et al.Numerical calculation of rotation effects on hybrid air journal bearings[J].Tribology Transactions,2016,60(2):195-207.
    [7] DAL A,KARAAY T.Effects of angular misalignment on the performance of rotor-bearing systems supported by externally pressurized air bearing[J].Tribology International,2017,111:276-288.
    [8] LO C Y,WANG C C,LEE Y H.Performance analysis of high-speed spindle aerostatic bearings[J].Tribology International,2005,38(1):5-14.
    [9] MORI H.A theoretical investigation of pressure depression in externally pressurized gas-lubricated circular thrust bearings[J].Journal of Basic Engineering,1961,83(2):201-208.
    [10] MORI H,MIYAMATSU Y.Theoretical flow-models for externally pressurized gas bearings[J].Journal of Tribology,1969,91(1):181-193.
    [11] YOSHIMOTO S,SUGANUMA N,YAGI K,et al.Numerical calculations of pressure distribution in the bearing clearance of circular aerostatic thrust bearings with a single air supply inlet[J].Journal of Tribology,2007,129(2):384-390.
    [12] ELESHAKY M E.CFD investigation of pressure depressions in aerostatic circular thrust bearings[J].Tribology International,2009,42(7):1108-1117.
    [13] MIYATAKE M,YOSHIMOTO S.Numerical investigation of static and dynamic characteristics of aerostatic thrust bearings with small feed holes[J].Tribology International,2010,43(8):1353-1359.
    [14] NISHIO U,SOMAYA K,YOSHIMOTO S.Numerical calculation and experimental verification of static and dynamic characteristics of aerostatic thrust bearings with small feedholes[J].Tribology International,2011,44(12):1790-1795.
    [15] BELFORTE G,RAPARELLI T,TRIVELLA A,et al.CFD analysis of a simple orifice-type feeding system for aerostatic bearings[J].Tribology Letters,2015,58(2):1-8.
    [16] CHANG S H,CHAN C W,JENG Y R.Discharge coefficients in aerostatic bearings with inherent orifice-type restrictors[J].Journal of Tribology,2015,137(1):1-7.
    [17] CHANG S H,CHAN C W,JENG Y R.Numerical analysis of discharge coefficients in aerostatic bearings with orifice-type restrictors[J].Tribology International,2015,90:157-163.
    [18] AL-BENDER F,VAN BRUSSEL H.A method of ‘separation of variables’ for the solution of laminar boundary-layer equations of narrow-channel flows[J].Journal of Tribology,1992,114(3):623-629.
  • 加载中
计量
  • 文章访问数:  949
  • HTML浏览量:  4
  • PDF量:  948
  • 被引次数: 0
出版历程
  • 收稿日期:  2018-08-15
  • 刊出日期:  2019-04-28

目录

    /

    返回文章
    返回