油液冷却航空湿式摩擦离合器热特性分析  

Analysis of thermal characteristics of oil-cooled aviation wet friction clutch

作　　者：鲍和云[1] 孔维地 谭武中 黄伟[1] 朱如鹏[1] BAO Heyun;KONG Weidi;TAN Wuzhong;HUANG Wei;ZHU Rupeng(National Key Laboratory of Science and Technology on Helicopter Transmission,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;National Key Laboratory of Science and Technology on Helicopter Transmission,Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou Hunan 412002,China)

机构地区：[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

出　　处：《航空动力学报》2022年第5期989-999,共11页Journal of Aerospace Power

基　　金：国家自然科学基金(51975274);国家科技重大专项(J2019-Ⅲ-0023-0067)。

摘　　要：为了研究航空高功率密度湿式摩擦离合器在油液冷却作用下的温度特性,基于计算流体动力学(computational fluid dynamics,CFD)方法建立了华夫槽湿式摩擦离合器的热特性分析模型;研究了湿式摩擦离合器中摩擦副上热流密度的计算方法和施加方式;运用热流耦合方法,考虑了油液的散热作用,分析了离合器内各对摩擦副上的油液分布及温度分布。研究结果表明:钢片上和摩擦片上的油液分布不均造成钢片和摩擦片上温度分布不均;不同钢片和摩擦片上的温度分布受片上油液分布及该片热传导性能的影响,呈现出不同的温度分布规律。In order to study the temperature characteristics of aviation high power density wet friction clutch under the action of oil cooling, the thermal characteristics analysis model of the waffle groove wet friction clutch was established based on the computational fluid dynamics(CFD)method;the calculation method and application method of the heat flux density on the friction pair in the wet friction clutch were studied. Using the heat flow coupling method,the heat dissipation effect of the oil was considered,and the oil and temperature distributions on each friction pair in the clutch were analyzed. The research results showed that the uneven distribution of oil on the steel disk and friction disk caused uneven temperature distribution on the steel disk and friction disk. The temperature distribution on different steel disks and friction disks was affected by the oil distribution on the disks and the thermal conductivity of the disks, showing different temperature distribution laws.

关 键 词：湿式摩擦离合器 钢片 摩擦片 温度场 计算流体动力学(CFD) 

分 类 号：V229[航空宇航科学与技术—飞行器设计] TH133.4[机械工程—机械制造及自动化]