某型直升机中减速器飞溅润滑流场特性分析

姜义尧; 胡小舟; 孙凯

doi:10.13224/j.cnki.jasp.2018.12.025

某型直升机中减速器飞溅润滑流场特性分析

doi: 10.13224/j.cnki.jasp.2018.12.025

中南大学机电工程学院，长沙 410083；中南大学高性能复杂制造国家重点实验室，长沙 410083

基金项目: 预研项目

计量
- 文章访问数: 584
- HTML浏览量: 3
- PDF量: 427
- 被引次数: 0
出版历程
- 收稿日期: 2017-11-24
- 刊出日期: 2018-12-28

Analysis of flow field characteristics of medium reducer with splash lubrication in a certain helicopter

摘要

摘要: 为了分析某型直升机中减速器飞溅润滑内部流场特性，基于计算流体动力学(CFD)方法，运用流体体积（VOF）多相流模型和湍流模型，建立了包含齿轮箱体、螺旋锥齿轮和导油器等部件的中减速器飞溅润滑数值仿真模型，得到了中减速器飞溅润滑过程中的流场特性，实现了中减速器内部瞬态流场的可视化，分析了齿轮转速、浸油深度对关键位置润滑油流量的影响。结果表明：齿轮啮合处润滑油流量与齿轮转速、浸油深度成正相关；导油管内润滑油流量与导油器油量饱和值有关，当油量大于该值时，导油管内润滑油流量随着齿轮转速的增大而增大，随着齿轮浸油深度的增大而不变。搭建了螺旋锥齿轮箱飞溅润滑试验系统，将飞溅润滑过程中圆孔润滑油流量试验结果与相应的仿真结果进行对比，最大误差为9.5%，验证了仿真方法的正确性。
- 中减速器 /
- 螺旋锥齿轮 /
- 飞溅润滑 /
- 流场 /
- 导油管 /
- 啮合处
Abstract: For the purpose of analyzing the characteristics of the internal flow field of middle reducer with splash lubrication in a certain helicopter, based on the computational fluid dynamics (CFD) method, a numerical simulation model for the splash lubrication of middle reducer, including gear box housing, spiral bevel gear and oil guide device, was established by using the volume of fluid (VOF) multi-phase flow model and the turbulence model. With these models, the flow field characteristics of splash lubrication were obtained, and the transient flow field of lubricating oil in reducer was visualized; the influence of gear speed and oil immersion depth on the flow of lubricating oil in key positions was analyzed. Results showed that the oil flow in gear meshing zone was positively correlated with the gear speed and the depth of oil immersion. The oil flow in the oil guide pipe was related to the oil saturation value of the oil guide device. When the oil quantity was greater than this value, the oil flow in the oil guide pipe increased with the increase of the gear speed, and remained constant with the increase of the oil immersion depth. A splash lubrication test system of spiral bevel gearbox was set up, and results of oil flow tests of round hole in the process of splash lubrication were compared with the corresponding simulation results, the maximum error of simulation results relative to experiment was 9.5%, verifying the correctness of the simulation method.
- medium reducer /
- spiral bevel gear /
- splash lubrication /
- flow field /
- oil guide pipe /
- meshing

HTML

参考文献(20)

[1]	HUDGINS W A,SHUETZ H A.Loss of lubrication of helicopter transmission［J］.Journal of American Helicopter Society,1982,27(1):3-10.
[2]	张志彬.机车齿轮箱温度及压力场仿真研究［D］.成都:西南交通大学,2011.ZHANG Zhibin.Temperature field and pressure field digital simulation of transmission gear for locomotives［D］.Chengdu:Southwest Jiaotong University,2011.(in Chinese) 3］彭钱磊,桂良进,范子杰.汽车驱动桥飞溅润滑的数值仿真［J］.汽车工程,2016,38(12):1500-1507.PENG Qianlei,GUI Liangjin,FAN Zijie.Numerical simulation of splash lubrication in vehicle drive axle［J］.Automotive Engineering,2016,38(12):1500-1507.(in Chinese)
[3]	苏红.基于CFD的单级齿轮甩油模拟研究［D］.重庆:重庆大学,2014.SU Hong.Oil splashing simulation of single stage gear based on CFD.［D］.Chongqing:Chongqing University,2014.(in Chinese)
[4]	MOSHAMMER T,MAYR F,KARGL K,et al.Simulation of oil flow in gear box housing［R］.Society of Automotive Engineers,SAE Technical Paper 2006-01-1574,2006.
[5]	LEMFELD F,FRANA K,UNGER J.Numerical simulation of unsteady oil flows in the gear-boxes［J］.Journal of Applied Science in the Thermodynamics and Fluid Mechanics,2007,1(1):1-5.
[6]	LIU H,THOMAS J,THOMAS L,et al.Determination of oil distribution and churning power loss of gearboxes by finite volume CFD method［J］.Tribology International,2017,109:346-354.
[7]	LI L,VERSTEEG H K,HARGRAVE G K,et al.Numerical investigation on fluid flow of gear lubrication［J］.Society of Automotive Engineers International Journal of Fuels and Lubricants,2008,1(1):1056-1062.
[8]	王叶枫,沈方岩,刘怡伶,等.单齿搅油功率损失试验研究与分析［J］.机电一体化,2016,22(7):13-16.WANG Yefeng,SHEN Fangyan,LIU Yiling,et al.The experimental research and analysis of single gear churning loss［J］.Mechatronics,2016,22(7):13-16.(in Chinese)
[9]	CHANGENET C,LEPRINCE G,VILLE F,et al.A note on flow regimes and churning loss modeling［R］.Washington D C：International Design Engineering Technical Conferences and Computers and Information in Engineering Conference,2011.
[10]	CONCLI F,GORLA C.A CFD analysis of the oil squeezing power losses of a gear pair［J］.International Journal of Computational Methods and Experimental Measurements,2014,2(2):57-67.
[11]	王延忠,牛文韬,唐文,等.航空直齿轮喷油润滑油气两相流分析［J］.航空动力学报,2013,28(2):439-444.WANG Yanzhong,NIU Wentao,TANG Wen,et al.Research on oil-air multiphase flow of spray lubrication of aero spur gears［J］.Journal of Aerospace Power,2013,28(2):439-444.(in Chinese)
[12]	张瑞强,刘少军,胡小舟.供油压力和滑油温度对某航空齿轮润滑喷嘴射流特性的影响［J］.航空动力学报,2016,31(7):1777-1784.ZHANG Ruiqiang,LIU Shaojun,HU Xiaozhou.Effects of supply pressure and temperature of oil on jet characteristics of lubricating nozzles for an aviation gears［J］.Journal of Aerospace Power,2016,31(7):1777-1784.(in Chinese)
[13]	CONCLI F,GORLA C.Numerical modeling of the power losses in geared transmissions:windage,churning and cavitation simulations with a new integrated approach that drastically reduces the computational effort［J］.Tribology International,2016,103:58-68.
[14]	贾清健,赵宁.高速圆柱直齿轮风阻功率损失参数研究［J］.机械传动,2012,36(10):20-24.JIA Qingjian,ZHAO Ning.Research on windage power loss in high speed spur gear［J］.Journal of Mechanical Transmission,2012,36(10):20-24.(in Chinese)
[15]	KATHY S,GRAHAM J,WIEDEMANN N.Effect of pressure and oil mist on windage power loss of a shrouded spiral bevel gear［J］.Turbine Technical Conference and Exposition,2011,134(8):327-335.
[16]	董春锋.基于热流耦合的齿轮对流换热及温度场分析［D］.重庆:重庆大学,2011.DONG Chunfeng.Heat-fluid coupled analysis on convection heat transfer and temperature field of gears［D］.Chongqing:Chongqing University,2011.(in Chinese)
[17]	KODELA C,KRAETSCHMER M,BASA S.Churning loss estimation for manual transmission gear box using CFD［J］.International Journal of Passenger Cars-Mechanical Systems,2015,8 (1):391-397.
[18]	黄艾香,周天孝.有限元理论与方法［M］.北京:科学出版社,2009.
[19]	GORLA C,CONCLI F,STAHL K,et al.CFD simulations of splash losses of a gearbox［J］.Advances in Tribology,2012,2012:1-10.
[20]	HIRT C W,NICHOLS B D.Volume of fluid(VOF) method for the dynamics of free boundaries［J］.Journal of Computational Physics,198l,39(1):201-225.