电涡流缓速器转子温度场热流耦合分析  

Coupling Analysis of Temperature Field and Heat Flow of Eddy Current Retarder Rotor

作　　者：刘金 廖云飞 LIU Jin;LIAO Yunfei(Shenzhen Terca Technology Co., Ltd.,Shenzhen Guangdong 518110;College of Intelligent Manufacturing Technology, Chongqing Industry Polytechnic College,Chongqing 401120)

机构地区：[1]深圳市特尔佳科技股份有限公司,广东深圳518110 [2]重庆工业职业技术学院智能制造技术学院,重庆401120

出　　处：《河南科技》2019年第22期43-46,共4页Henan Science and Technology

基　　金：重庆市教委科学技术研究基金项目（KJ1603004）

摘　　要：电涡流缓速器的散热性能直接影响缓速器的制动性能,而缓速器转子的对流换热在其散热过程中起到了至关重要的作用。本文从电涡流缓速器实际工况出发,对两种机械结构的缓速器转盘进行了热流耦合分析,对转盘的受热关键区域进行逐层分析,探讨了转盘的对流散热情况和热应力集中情况。研究结果表明,改变缓速器的转子结构能有效改善其流场情况,增加层流的比例,减小紊流的情况,对降低缓速器的工作温度起到促进作用。The braking performance of the eddy current retarder depended on its capacity of heat dissipation. In the heat dissipation process, the most importance is the conventional heat transfer of the retarder’s rotor. In the manu. script, based on the actual working conditions, the thermal-fluid coupling analysis of two kinds of mechanical struc. tures of retarder turntables was carried out. For the critical heating zone, we investigated the situation of convention heat transfer and thermal stress layer by layer. The research results shows that, the flow field could be promoted by idealizing the mechanical structure of the rotor. With the improve of the flow field, the proportion of laminar flow has been increased and turbulence is reduced accordingly.This will play a role in reducing the working temperature of the retarder.

关 键 词：电涡流缓速器 温度场 热流耦合分析 机械结构 散热性能 

分 类 号：TH132.4[机械工程—机械制造及自动化]