基于CFD的某减速器飞溅润滑仿真分析与验证  

Splash lubrication simulation analysis and verification of a gearbox based on CFD

作　　者：李玉哲 艾永生 刘卫真 潘文斌 胡玉梅[2] LI Yuzhe;AI Yongsheng;LIU Weizhen;PAN Wenbin;HU Yumei(Science and Technology on Helicopter Transmission Laboratory,Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou Hunan 412002,China;State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,China)

机构地区：[1]中国航空发动机集团有限公司湖南动力机械研究所,直升机传动技术重点实验室,湖南株洲412002 [2]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《航空动力学报》2020年第7期1482-1488,共7页Journal of Aerospace Power

摘　　要：为评估飞溅润滑减速器的储油结构是否合理,基于计算流体动力学方法,建立了包含机匣、螺旋锥齿轮等构件的某减速器飞溅润滑动态仿真模型,开展了气液两相流飞溅润滑流体仿真计算与分析,获得了减速器内部的滑油运动轨迹及分布云图。通过仿真分析可以发现:输入端油兜收集到的滑油量为531 mL,大于输出端收集到的滑油量65 mL;4号油兜收集到的滑油量为0 mL,结构设计存在不合理之处,并进行了飞溅润滑试验验证。仿真分析结果与试验结果的趋势一致,验证了仿真分析方法的准确性,为飞溅润滑减速器储油结构设计提供了指导。In order to evaluate whether the oil storage structure of splash lubricating gearbox was reasonable,a dynamic simulation model for the splash lubrication analysis of gearbox including gearbox housing,spiral bevel gear based on the computational fluid dynamics(CFD)method was established,and the splash lubrication fluid simulation calculation and analysis of gas-liquid two-phase flow were carried out,then the movement track and distribution cloud diagram of lubricating oil in gearbox were obtained.Through the simulation analysis,it was found that the amount of oil collected at input oil pocket was 531 mL,greater than the amount of oil collected at output oil pocket 65 mL,and the No.4 oil pocket can’t collect lubricating oil,so the design of No.4 oil pocket was unreasonable.According to the result of splash lubrication test,it shows that the trend of the simulation analysis result is consistent with the experimental result,which verifys the correctness of the simulation analysis method and provids a guidance for the design of oil storage structure of splash lubricating gearbox.

关 键 词：飞溅润滑减速器 计算流体动力学(CFD) 流体仿真 滑油分布 飞溅润滑试验 

分 类 号：V228.5[航空宇航科学与技术—飞行器设计] TH133.33[机械工程—机械制造及自动化]