基于拟动力学的航空发动机主轴球轴承热弹流润滑分析

史修江; 王黎钦; 古乐; 郑德志; 赵小力

doi:10.13224/j.cnki.jasp.2016.01.030

基于拟动力学的航空发动机主轴球轴承热弹流润滑分析

doi: 10.13224/j.cnki.jasp.2016.01.030

哈尔滨工业大学机电工程学院, 哈尔滨 150001

基金项目:

国家重点基础研究发展计划(2013CB632305)

国家自然科学基金(51373186)

详细信息

作者简介:
史修江(1989-),男,山东泰安人,博士生,主要从事航空发动机主轴轴承动力学与热弹流研究.

中图分类号: V231
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出版历程
- 收稿日期: 2014-05-24
- 刊出日期: 2016-01-28

Thermal elastohydrodynamic lubrication analysis of aero-engine mainshaft ball bearing based on quasi-dynamic

School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

摘要

摘要: 以航空发动机主轴球轴承高速高温重载典型工况为算例,基于轴承拟动力学分析,得到滚动体与套圈之间的微接触区运动和受力状态,分别用Hamrock-Dowson(H-D)拟合公式和翟文杰热修正公式计算了最小膜厚(MFT),同时结合热弹流润滑分析得到最小膜厚分布,对比了试验测试、H-D拟合、翟文杰热修正和热弹流润滑分析4种算法的最小膜厚,并根据膜厚比判定了轴承的弹流润滑状态.结果表明:H-D拟合和翟文杰热修正最小膜厚与试验测试结果相差较远,热弹流润滑分析结果与试验数据吻合性较好,误差10%以内;探讨了不同工况下的轴承弹流润滑性能.结果表明:存在径向载荷时,润滑膜整体压力增大,膜厚减小;随着转速增大,压力减小,膜厚增大,但是增大的趋势减缓.
- 航空发动机主轴球轴承 /
- 拟动力学 /
- 热弹流 /
- 最小膜厚 /
- 载荷 /
- 转速
Abstract: Taking aero-engine mainshaft ball bearing under typical high speed and load conditions as cases, the motion and loaded states of micro-contact region were obtained based on quasi-dynamic analysis, and the minimum film thickness(MFT) was estimated with Hamrock-Dowson(H-D) formula and ZHAI Wenjie thermal modified formula; meanwhile, the MFT under various conditions was acquired through thermal elastohydrodynamic lubrication(EHL) analysis. Comparing the MFT of experiment testing, H-D, ZHAI Wenjie and numerical analysis, the EHL status was ensured by film thickness ratio. Results indicate that H-D and ZHAI Wenjie's MFT have large difference with experiment results, but numerical analysis shows a well agreement with experiment data and the error is within 10%.The operating condition effects on EHL property were discussed. Results indicate the global film pressure increases and the thickness decreases in the presence of radial load; the film pressure decreases and the thickness increases with the increase of speed, but the trend becomes slower.
- aero-engine mainshaft ball bearing /
- quasi-dynamic /
- thermal elastohydrodynamic lubrication /
- minimum film thickness /
- load /
- speed

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参考文献(18)

[1]	陈观慈,王黎钦,古乐,等.高速球轴承的生热分析[J].航空动力学报,2007,22(1):165-168. CHEN Guanci,WANG Liqin,GU Le,et al.Heating analysis of the high speed ball bearing[J].Journal of Aerospace Power,2007,22(1):165-168.(in Chinese)
[2]	叶振环.航空发动机高速滚动轴承动力学行为研究[D].哈尔滨:哈尔滨工业大学,2013. YE Zhenhuan.Research on dynamic behavior of high-speed rolling bearing in aeroengines[D].Harbin:Harbin Institute of Technology,2013.(in Chinese)
[3]	Sakaguchi T,Harada K.Dynamic analysis of cage behavior in a tapered roller bearing[J].Journal of Tribology,2006,128(3):604-611.
[4]	王黎钦,崔立,郑德志,等.航空发动机高速球轴承动态特性分析[J].航空学报,2007,28(6):1461-1467. WANG Liqin,CUI Li,ZHENG Dezhi,et al.Analysis on dynamic characteristics of aero-engine high speed ball bearings[J].Acta Aeronautica et Actronautica Sinica,2007,28(6):1461-1467.(in Chinese)
[5]	邓四二,付金辉,王燕霜,等.航空发动机滚动轴承双转子系统动态特性分析[J].航空动力学报,2013,28(1):195-204. DENG Sier,FU Jinhui,WANG Yanshuang,et al.Analysis on dynamic characteristics of aero-engine rolling bearing/dual-rotor system[J].Journal of Aerospace Power,2013,28(1):195-204.(in Chinese)
[6]	胡绚,罗贵火,高德平.圆柱滚子中介轴承拟静力学分析[J].航空动力学报,2006,21(6):1069-1074. HU Xuan,LUO Guihuo,GAO Deping.Quasi-static analysis of cylindrical roller intershaft bearing[J].Journal of Aerospace Power,2006,21(6):1069-1074.(in Chinese)
[7]	Hamrock B J,Dowson D.Isothermal elastohydrodynamic lubrication of point contacts:Part Ⅲ fully flooded results[J].Journal of Lubrication Technology,1977,99(2):261-276.
[8]	梁鹤,郭丹,雒建斌.高速下弹流润滑膜厚性质的试验与数值计算结果比较[R].兰州:中国机械工程学会摩擦学分会第十一届全国摩擦学大会,2013.
[9]	翟文杰,张鹏顺.全膜点接触热弹流的油膜特性及最小膜厚热修正公式[J].机械设计,1995(7):27-29. ZHAI Wenjie,ZHANG Pengshun.Oil film properties and minimum film thickness thermal modified formula of whole point contact thermal elastohydrodynamic[J].Mechanical Design,1995(7):27-29.(in Chinese)
[10]	Lubrecht A A,Venner C H,Colin F.Film thickness calculation in elastohydrodynamic lubricated line and elliptical contacts[J].Journal of Engineering Tribology,2009,223(3):511-515.
[11]	Canzi A,Venner C H,Lubrecht A A.Film thickness prediction in elastohydrodynamically lubricated elliptical contact[J].Journal of Engineering Triboloy,2010,224(9):917-923.
[12]	ZHU Dong.Elastohydrodynamic lubrication in extended parameter ranges:Part Ⅱ load effect[J].Tribology Transactions,2002,45(4):549-555.
[13]	崔立.航空发动机高速滚动轴承及转子系统的动态性能研究[D].哈尔滨:哈尔滨工业大学,2008. CUI Li.Researchon dynamic performances of high-speed rolling bearing and rotror system of aeroengine[D].Harbin:Harbin Institute of Technology,2008.(in Chinese)
[14]	Yang P,Wen S.A generalized Reynolds equation for non-newtonian thermal elastohydrodynamic lubrication[J].Journal of Tribology,1990,112(4):631-636.
[15]	Dowson D,Higginson G R.Elasto-hydrodynamic lubrication[M].New York:Pergamon Press,1977.
[16]	Roelands C J A.Correlation aspects of viscosity-temperature-pressure relationship of lubricating oils[D].Delft:Netherlands:Delft University of Technology,1966.
[17]	郇艳,杨沛然.自旋对椭圆接触热弹流润滑的影响[J].摩擦学学报,2009,29(6):612-617. HUAN Yan,YANG Peiran.The influence of spinning on thermal EHL in elliptical contacts[J].Tribology,2009,29(6):612-617.(in Chinese)
[18]	张鹏顺,翟文杰,战明学,等.航空发动机三种典型主轴轴承的弹流油膜状态的测试研究[R].武汉:中国机械工程学会摩擦学分会第五届全国擦学学术会议,1992.