非牛顿大滑滚比工况的斜齿轮热摩擦特性分析

陆凤霞; 朱如鹏; 顾俊杰; 杨剑飞

doi:10.13224/j.cnki.jasp.2018.04.027

非牛顿大滑滚比工况的斜齿轮热摩擦特性分析

doi: 10.13224/j.cnki.jasp.2018.04.027

南京航空航天大学机电学院，南京 210016

基金项目: 国家自然科学基金（51475226）

计量
- 文章访问数: 705
- HTML浏览量: 3
- PDF量: 550
- 被引次数: 0
出版历程
- 收稿日期: 2016-10-13
- 刊出日期: 2018-04-28

Thermal friction characteristics analysis of helical gears under non-Newtonian fluid and big slide-roll ratio

摘要

摘要: 考虑啮合过程中接触线长度及齿面载荷的时变性，结合沿接触线方向综合曲率半径及卷吸速度的瞬态特点，建立满足航空传动润滑剂非牛顿流体及大滑滚比工况的有限长线接触斜齿轮热弹流润滑(TEHL)模型。采用多重网格法及逐列扫描法，获得适用于宽泛工况范围的斜齿轮热弹流润滑完全数值解；分析非牛顿及大滑滚比情形下的斜齿轮传动热摩擦特性。结果表明：斜齿轮端部存在明显压力及温度尖峰，且离入口愈近膜厚会略减小；非牛顿特性对温度场影响显著，且接触线过节点时温度分布呈“V”型分布；摩擦因数沿啮合线方向在节点处接近于0且向两侧逐渐增大，同时随滑滚比的增大而增大。
- 斜齿轮 /
- 弹性流体动力润滑(EHL) /
- 非牛顿流体 /
- 大滑滚比 /
- 热特性 /
- 摩擦因数
Abstract: Considering the time-varying contact line length and gear tooth load during a meshing cycle, and combining the transient equivalent curvature and entrainment velocity along the contact line, a thermal elastohydrodynamic lubrication (TEHL) model of finite line contact for helical gears was developed under non-Newtonian fluid and big slide-roll ratio for the aerospace transmission. By employing multilevel method and sequential sweeping method, the complete TEHL numerical solution suitable to wide working conditions was obtained. The thermal friction performances for helical gears transmission were investigated in non-Newtonian fluid and big slide-roll ratio cases. Results showed that at the end of helical gears the obvious pressure and temperature peak existed, moreover the film thickness reduced slightly approaching to the engage-in position. Non-Newtonian characteristics exerted a significant influence on temperature, furthermore the temperature distribution behaved like a V-shape around the pitch point. The friction coefficient of the pitch point along the meshing line was close to zero, which gradually increased towards the two sides and with the going up of slide-roll.
- helical gear /
- elastohydrodynamic lubrication(EHL) /
- non-Newtonian fluid /
- big slide-roll ratio /
- thermal characteristic /
- friction coefficient

HTML

参考文献(18)

[1]	SIMON V.Thermo-EHD analysis of lubrication of helical gears［J］.Journal of Mechanisms,Transmissions and Automation in Design,1988,110(3):330-336.
[2]	林晓辉,黄卫,庄苹.渐开线齿轮传动非牛顿润滑介质的线弹流数值分析研究［J］.计算力学学报,2003,20(2):164-168.LIN Xiaohui,HUANG Wei,ZHUANG Ping.Numerical analysis for the elastohydrodynamic lubrication of involutes gear by a non-Newtonian medium［J］.Chinese Journal of Computational Mechanics,2003,20(2):164-168.(in Chinese)
[3]	WANG Y Q,LI H Q,TONG J W,et al.Transient thermoelastohydrodynamic lubrication analysis of an involute spur gear［J］.Tribology International,2004,37(10):773-782.
[4]	YANG Ping,YANG Peiran.Analysis on the thermal elastohydrodynamic lubrication of tapered rollers in opposite orientation［J］.Tribology International,2007,40(10):1627-1637.
[5]	孙浩洋,陈晓阳,杨沛然.非牛顿重载滚滑工况有限长线接触热弹流研究［J］.摩擦学学报,2005,25(2):154-158.SUN Haoyang,CHEN Xiaoyang,YANG Peiran.Study on non-Newtonian thermal elastohydrodynamic lubrication of finite slide/roll line contact under heavy load［J］.Tribology,2005,25(2):154-158.(in Chinese)
[6]	王文中,操鸿,胡纪滨.渐开线斜齿轮非稳态弹流润滑数值模拟研究［J］.摩擦学学报,2011,31(6):604-609.WANG Wenzhong,CAO Hong,HU Jibin.Numerical simulation of transient elastohydrodynamic lubrication of helical gears［J］.Tribology,2011,31(6):604-609.(in Chinese)
[7]	王延忠,周元子,陈聪慧,等.弹流润滑螺旋锥齿轮热摩擦行为分析［J］.航空动力学报,2011,26(10):2382-2387.WANG Yanzhong,ZHOU Yuanzi,CHEN Conghui,et al.Thermal tribology analysis of spiral bevel gears in EHD lubrication［J］.Journal of Aerospace Power,2011,26(10):2382-2387.(in Chinese)
[8]	LUGT P M,MORALES-ESPEJEL G E.A review of elasto-hydrodynamic lubrication theory［J］.Tribology Transactions,2011,54(3):470-496.
[9]	邹玉静,常德功.渐开线直齿轮的动力学与弹流润滑耦合［J］.航空动力学报,2016,31(8):2010-2020.ZOU Yujing,CHANG Degong.Coupling of dynamics and elastohydrodynamic lubrication for spur gear［J］.Journal of Aerospace Power,2016,31(8):2010-2020.(in Chinese)
[10]	刘明勇,朱才朝,刘怀举.有限长线接触非牛顿热弹流润滑分析［J］.润滑与密封,2014,39(2):48-55.LIU Mingyong,ZHU Caichao,LIU Huaiju.A thermal EHL model for finite line contact with non-Newtonian fluids［J］.Lubrication Engineering,2014,39(2):48-55.(in Chinese)
[11]	SNIDLE R W,JAMALI H U,SHARIF K J,et al.Transient elastohydrodynamic analysis of helical gear tooth contacts［R］.Houston,USA:STLE(Society of Tribologists and Lubrication Engineers) Annual Meeting and Exhibition,2013.
[12]	杨萍.圆锥滚子的热弹性流体动力润滑分析［D］.山东青岛:青岛理工大学,2005.YANG Ping.Analysis on the thermal elastohydrodynamic lubrication for tapered rollers［D］.Qingdao Shandong:Qingdao University of Technology,2005.(in Chinese)
[13]	苑士华,董辉立,李雪原.基于MEPE和EHL理论的渐开线斜齿轮啮合特性分析［J］.摩擦学学报,2012,32(3):286-290.YUAN Shihua,DONG Huili,LI Xueyuan.Contact analysis of helical gears based on MEPE and EHL Theories［J］.Tribology,2012,32(3):286-290.(in Chinese)
[14]	温诗铸,杨沛然.弹性流体动力润滑［M］.北京:清华大学出版社,1992.
[15]	ROELANDS C J A.Correlational aspects of the viscosity-temperature-pressurerelationship of lubricating oils［D］.Delft:Delft University of Technology,1966.
[16]	DOWSON D,HIGGINSON G R.Elasto-hydrodynamic lubrication［M］.Oxford:Pergamon Press,1977.
[17]	WYMER D G,CAMERON A.Elastohydrodynamic lubrication of a line contact［J］.Proceedings of the Institution of Mechanical Engineers,1974,188(19):221-238.
[18]	邹玉静,常德功.基于载荷分担理论的渐开线斜齿轮热混合弹流润滑分析［J］.摩擦学学报,2015,35(4):495-504.ZOU Yujing,CHANG Degong.Mixed thermoelastohydrodynamic analysis of helical gears based on load sharing concept［J］.Tribology,2015,35(4):495-504.(in Chinese)