摘要
针对液力缓速器价格高,传统电涡流缓速器制动力矩热衰退严重,自励缓速器控制复杂等问题,提出一种外转子构造的电磁液冷缓速器结构.设计了2 000 N·m缓速器样机的三维模型,对模型进行有限元仿真分析.对外转子缓速器制动力矩进行理论推导,分析系统磁路、热场等问题,并对内热源进行处理.利用成熟的有限元法对电磁场模型、制动力矩特性以及温度场进行三维瞬态仿真分析,并与理论计算结果进行对比,验证了理论推导的正确性.
Present retarders have different problems such as the high price of hydraulic retarder,heat recession of the brake of eddy current retarder and complexity of the control system of self-excited retarder. To overcome these problems,a new retarder—the liquid-cooled eddy current retarder with external rotor was proposed in this paper. Firstly,a prototype of this retarder that could produce up to2 000 N·m brake torque was created. With this prototype,the braking torque was calculated,and the magnetic circuit and temperature filed was analyzed. The internal heat source could be improved. Then,an electromagnetic model based on finite element analysis was built,and the 3-D transient analysis of braking torque and temperature field were conducted. Finally,a contrastive analysis of the simulation results was made.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2015年第11期1652-1657,共6页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(51277005)
关键词
外转子
缓速器
力矩
电磁
液冷
external rotor
retarder
torque
electromagnetism
liquid-cooled
