直升机中减飞溅润滑流场分析与优化方法

doi:10.7527/S1000-6893.2020.23659

流体力学与飞行力学

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直升机中减飞溅润滑流场分析与优化方法

陆凤霞¹, 王孟¹, 王春雷¹, 李玉哲², 朱如鹏¹

1. 南京航空航天大学直升机传动技术重点实验室, 南京 210016;
2. 中国航发湖南动力机械研究所, 株洲 412002

收稿日期:2019-11-18 修回日期:2019-12-26 出版日期:2020-11-15 发布日期:2020-04-10
通讯作者: 陆凤霞 E-mail:meefxlu@nuaa.edu.cn
基金资助:
国家自然科学基金（51975274）；航空科学基金（ASFC-1005-HAB18011）

Analysis and optimization method for flow field of intermediate gearbox splash lubrication in helicopters

LU Fengxia¹, WANG Meng¹, WANG Chunlei¹, LI Yuzhe², ZHU Rupeng¹

1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. AECC Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China

Received:2019-11-18 Revised:2019-12-26 Online:2020-11-15 Published:2020-04-10
Supported by:
National Natural Science Foundation of China (51975274); Aeronautical Science Foundation of China (ASFC-1005-HAB18011)

摘要/Abstract

摘要： 为探究某型直升机中间减速器飞溅润滑油-气两相流分布与参数优化方法，首先基于计算流体力学（CFD）思想建立了中减飞溅润滑数值计算模型；采用多相流（VOF）及动网格等模型计算获得了机匣内部的油液分布与导油管的润滑油流量；分析了浸油深度和输入转速对齿面与轴承（通过导油管的润滑油流量体现）润滑效果的影响规律。然后在直升机中减传动试验台上开展试验，验证仿真的可行性。结果显示：建议的中减浸油深度为17~26 mm、输入转速为4 000~6 000 r/min；试验测得4个导油管的润滑油流量趋势与CFD仿真计算结果一致，且有一个导油管收集不到润滑油，说明该导油管的结构不合理。

关键词: 中减, 飞溅润滑, 螺旋锥齿轮, 导油管, 计算流体力学

Abstract: To explore the distribution and parameter optimization method for the oil-air two-phase flow field of the intermediate gearbox under splash lubrication, a numerical model of the intermediate gearbox under splash lubrication was established based on Computational Fluid Dynamics (CFD) firstly. The Volume of Fluid (VOF) multiphase flow model and dynamic mesh model were used to calculate the oil distribution in the gearbox and the oil flow rate of the oil guide tube. The influences of the oil immersion depth and rotational speed on the lubrication effect of the gear face and bearing (reflected by the oil flow rate of the oil guide tube) were analyzed. Furthermore, an experiment was conducted on the intermediate gearbox transmission test-rig to verify the feasibility of the simulation. Results show that it is recommended that the oil immersion depth and rotational speed are in the ranges of 17-26 mm and 4 000-6 000 r/min, respectively. The flow trend of the oil in the four oil guide tubes was consistent with the CFD simulation results, while no oil was collected in one oil guide tube, showing the unreasonableness of the structure of this oil guide tube.

Key words: intermediate gearbox, splash lubrication, spiral bevel gear, oil guide tube, computational fluid dynamics

中图分类号:

V228.5

陆凤霞, 王孟, 王春雷, 李玉哲, 朱如鹏. 直升机中减飞溅润滑流场分析与优化方法[J]. 航空学报, 2020, 41(11): 123659-123659.

LU Fengxia, WANG Meng, WANG Chunlei, LI Yuzhe, ZHU Rupeng. Analysis and optimization method for flow field of intermediate gearbox splash lubrication in helicopters[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(11): 123659-123659.

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直升机中减飞溅润滑流场分析与优化方法

Analysis and optimization method for flow field of intermediate gearbox splash lubrication in helicopters

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