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一种自冷却结构燃油泵滑动轴承润滑特性分析

符江锋 李华聪 樊丁 刘显为 朱嘉兴 李昆

符江锋, 李华聪, 樊丁, 等 . 一种自冷却结构燃油泵滑动轴承润滑特性分析[J]. 北京航空航天大学学报, 2018, 44(10): 2052-2062. doi: 10.13700/j.bh.1001-5965.2017.0762
引用本文: 符江锋, 李华聪, 樊丁, 等 . 一种自冷却结构燃油泵滑动轴承润滑特性分析[J]. 北京航空航天大学学报, 2018, 44(10): 2052-2062. doi: 10.13700/j.bh.1001-5965.2017.0762
FU Jiangfeng, LI Huacong, FAN Ding, et al. Lubrication characteristics analysis of a type of self-cooling structure fuel pump sliding bearings[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(10): 2052-2062. doi: 10.13700/j.bh.1001-5965.2017.0762(in Chinese)
Citation: FU Jiangfeng, LI Huacong, FAN Ding, et al. Lubrication characteristics analysis of a type of self-cooling structure fuel pump sliding bearings[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(10): 2052-2062. doi: 10.13700/j.bh.1001-5965.2017.0762(in Chinese)

一种自冷却结构燃油泵滑动轴承润滑特性分析

doi: 10.13700/j.bh.1001-5965.2017.0762
基金项目: 

航空科学基金 20150653006

中央高校基本科研业务费专项资金 G2017KY0003

详细信息
    作者简介:

    符江锋  男, 博士, 助理研究员。主要研究方向:航空发动机控制、航空燃油泵建模与仿真

    通讯作者:

    符江锋, E-mail:fjf@nwpu.edu.cn

  • 中图分类号: V228.1

Lubrication characteristics analysis of a type of self-cooling structure fuel pump sliding bearings

Funds: 

Aeronautical Science Foundation of China 20150653006

the Fundamental Research Funds for the Central Universities G2017KY0003

More Information
  • 摘要:

    为研究低介质黏度和自冷却结构限制下的航空燃油泵滑动轴承润滑特性分布规律,基于油膜动压润滑流动的Reynolds方程和等效黏度润滑流动模型,以绝热流动为假设简化滑动轴承内部流动的能量积分方程,构建一种联合Reynolds方程和绝热流动能量积分方程的燃油泵滑动轴承热流动润滑流动模型。采用CFD数值模拟和有限差分法相结合的混合仿真方法,分别对不同的间隙比、偏心率、宽径比条件下的滑动轴承的油膜压力、油膜厚度、油膜温度、端泄漏量、摩擦阻力等润滑特性进行了仿真分析。仿真结果表明:采用CFD计算滑动轴承径向载荷精度优于4.0%;保持偏心率不变,油膜承载力随着间隙比的增加而单调下降,油膜厚度随着间隙比的增高而增加;保持间隙比不变,油膜的承载力随着偏心率的增大也逐渐增大,油膜厚度随着偏心率的增高而下降,而油膜温度与油膜厚度成反比,且随着偏心率的升高,油膜温度的峰值越来越明显;当偏心率、间隙比一定时,可通过增加宽径比提高滑动轴承的油膜承载力。因此在滑动轴承的设计中,需综合考虑油膜承载力、端泄漏量、油膜厚度和温升间的相互制约因素,合理地优化间隙比、宽径比和偏心率以提高滑动轴承润滑性能。

     

  • 图 1  航空燃油泵滑动轴承

    Figure 1.  Sliding bearing of aviation fuel pump

    图 2  不同方程拟合值与真实值对比

    Figure 2.  Comparison between fitting values of different equations and actual values

    图 3  不同条件下的燃油泵压力分布云图

    Figure 3.  Pressure distribution contours under different conditions of fuel pump

    图 4  不同条件下的燃油泵仿真数据与试验数据对比

    Figure 4.  Comparison between simulation data and experimental data under differernt conditions of fuel pump

    图 5  油膜承载力随间隙比和偏心率的变化

    Figure 5.  Variation of oil film bearing capacity with clearance ratio and eccentricity ratio

    图 6  不同间隙比和偏心率下的油膜压力分布

    Figure 6.  Oil film pressure distribution at different clearance ratios and eccentricity ratios

    图 7  油膜厚度随偏心率和间隙比的变化

    Figure 7.  Variation of oil film thickness with eccentricity ratio and clearance ratio

    图 8  油膜承载力随宽径比和偏心率的变化

    Figure 8.  Variation of oil film bearing capacity with width diameter ratio and eccentricity ratio

    图 9  不同宽径比和偏心率下油膜压力的轴向分布

    Figure 9.  Axial pressure distribution of oil film at different width diameter ratios and eccentricity ratios

    图 10  滑动轴承无量纲油膜承载力、摩擦阻力与偏心率的关系

    Figure 10.  Relationship among non-dimensional oil film bearing capacity, friction force and eccentricity ratio of sliding bearing

    图 11  不同偏心率下的滑动轴承润滑特性

    Figure 11.  Lubrication characteristics of sliding bearing under different eccentricity ratios

    表  1  滑动轴承基本参数

    Table  1.   Basic parameters of sliding bearing

    参数 数值
    轴承宽度B/mm 24
    轴孔直径D/mm 20.021
    介质黏度μ/(Pa·s) 9.66×10-4
    介质密度ρ/(kg·m-3) 779
    轴颈直径d/mm 19.92
    转速n/(r·min-1) 8000
    偏心率e 0.8
    介质比热Cp/(J·(kg·℃)-1) 2000
    下载: 导出CSV

    表  2  滑动轴承径向力计算结果

    Table  2.   Radial force calculation results of sliding bearing

    径向力 扭矩径向力 液压径向力 主动轮合力 从动轮合力
    数值/N 1 135.5 4 232.5 3 149.9 5 284.0
    下载: 导出CSV
  • [1] 张绍基.航空发动机控制系统的研发与展望[J].航空动力学报, 2004, 19(3):375-382. doi: 10.3969/j.issn.1000-8055.2004.03.018

    ZHANG S J.A review of aeroengine control system[J].Journal of Aerospace Power, 2004, 19(3):375-382(in Chinese). doi: 10.3969/j.issn.1000-8055.2004.03.018
    [2] 岑少起, 张少林, 郭红.超重载滑动轴承EHL数值解快速收敛及黏压指数的影响[J].机械传动, 2007, 31(1):3-6. doi: 10.3969/j.issn.1004-2539.2007.01.002

    CEN S Q, ZHANG S L, GUO H.The speediness convergence of EHL solution of sliding bearing and influence of the viscosity-pressure relation under super heavy load[J].Journal of Mechanical Transmission, 2007, 31(1):3-6(in Chinese). doi: 10.3969/j.issn.1004-2539.2007.01.002
    [3] 张准, 朱克勤.电流变液滑动轴承的数值研究[J].力学学报, 2003, 35(2):135-139. doi: 10.3321/j.issn:0459-1879.2003.02.002

    ZHANG Z, ZHU K Q.Numerical study of journal bearings with electrorheological lubricants[J].Acta Mechanica Sinica, 2003, 35(2):135-139(in Chinese). doi: 10.3321/j.issn:0459-1879.2003.02.002
    [4] HUANG P.Numerical calculation of lubrication[M].Beijing:Tsinghua University Press, 2013.
    [5] 李强, 郑水英, 刘淑莲.计入JFO边界条件的滑动轴承性能分析[J].机械强度, 2010, 32(2):102-106. http://d.old.wanfangdata.com.cn/Periodical/jxqd201002018

    LI Q, ZHENG S Y, LIU S L.Analysis of the performance of journal bearing with JFO boundary condition[J].Journal of Mechanical Strength, 2010, 32(2):102-106(in Chinese). http://d.old.wanfangdata.com.cn/Periodical/jxqd201002018
    [6] STÅHL J.Narrow journal bearings[J].Proceedings of the Institution of Mechanical Engineers.Part J:Journal of Engineering Tribology, 2002, 216(5):343-346. doi: 10.1243/135065002760364877
    [7] GITA T, MARC C.Performance of a plain journal bearing with flooded ends[J].Tribology Transactions, 2002, 45(3):310-317. doi: 10.1080/10402000208982554
    [8] JOHANSSON L, WETTERGREN H.Computation of the pre-ssure distribution in hydrodynamic bearings using Newton's method[J].Journal of Tribology, 2004, 126(2):404-407. doi: 10.1115/1.1631009
    [9] DOWSON D, HUDSON J D, HUNTER B, et al.An experimental investigation of the thermal equilibrium of steadily loaded journal bearings[M].Boca Raton:CRC Press, 1994:251-269.
    [10] 苏红, 毛军, 薛琳.一种复合式滑动轴承的实验研究[J].北京交通大学学报, 2003, 27(4):11-13. doi: 10.3969/j.issn.1673-0291.2003.04.003

    SU H, MAO J, XUE L.Research and experiment on a compound sliding bearing[J].Journal of Northern Jiaotong University, 2003, 27(4):11-13(in Chinese). doi: 10.3969/j.issn.1673-0291.2003.04.003
    [11] DWORK C, NAOR M, PITASSI T, et al.Differential privacy under continual observation[C]//Proceedings of the 2010 ACM International Symposium on Theory of Computing.New York: ACM, 2010: 715-724.
    [12] SHAO J, YANG X, WANG Y, et al.Research on thermal deformation field of heavy hydrostatic thrust bearing rotation-workbench at different auxiliary-hole position[C]//Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology.Piscataway, NJ: IEEE Press, 2011: 912-915.
    [13] VERMA R S, RAHMAN L, VERMA R K, et al.Post harvest storage method for rose-scented geranium (L'Herit.ex Ait.)[J].Journal of Essential Oil-Bearing Plants, 2013, 16(5):693-698. doi: 10.1080/0972060X.2013.862930
    [14] JIN C, WU B, HU Y.Theoretical calculation of thermal contact resistance of ball bearing under different loads[C]//6th International Conference on Informatics in Control, Automation and Robotics, 2009: 181-188.
    [15] TAKABI J, KHONSARI M M.On the dynamic performance of roller bearings operating under low rotational speeds with consideration of surface roughness[J].Tribology International, 2015, 86:62-71. doi: 10.1016/j.triboint.2015.01.011
    [16] DHANDE D Y, PANDE D W.Multiphase flow analysis of hydrodynamic journal bearing using CFD coupled fluid structure interaction considering cavitation[C]//International Conference on Automatic Control and Dynamic Optimization Techniques, 2016: 964-971.
    [17] 蔡林.流体动压滑动轴承静特性研究[D].哈尔滨: 哈尔滨工程大学, 2012.

    CAI L.Investigation on static performance of hydrodynamics bearing[D].Harbin: Harbin Engineering University, 2012(in Chinese).
    [18] 王迎佳, 刘敏珊, 岑少起, 等.混合流态下径向滑动轴承的静态特性研究[J].润滑与密封, 2014, 39(5):41-46. doi: 10.3969/j.issn.0254-0150.2014.05.008

    WANG Y J, LIU M S, CEN S Q, et al.Static lubrication characteristics of radial sliding bearings under coexistence fluid state of laminar flow and turbulence[J].Lubrication Engineering, 2014, 39(5):41-46(in Chinese). doi: 10.3969/j.issn.0254-0150.2014.05.008
    [19] ZHANG X J, HUANG Y, GUO Y B, et al.A dynamic rheological model for thin-film lubrication[J].Chinese Physics B, 2013, 22(1):426-433.
    [20] 张振山, 戴旭东, 张执南, 等.轴颈倾斜的径向轴承热弹性流体动力润滑分析[J].上海交通大学学报, 2013, 47(9):1347-1352. http://d.old.wanfangdata.com.cn/Periodical/shjtdxxb201309003

    ZHANG Z S, DAI X D, ZHANG Z N, et al.Thermoelastohydrodynamic lubrication analysis of misaligned plain journal bearings[J].Journal of Shanghai Jiaotong University, 2013, 47(9):1347-1352(in Chinese). http://d.old.wanfangdata.com.cn/Periodical/shjtdxxb201309003
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出版历程
  • 收稿日期:  2017-12-08
  • 录用日期:  2018-02-11
  • 网络出版日期:  2018-10-20

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