摘要
对一款新型永磁磁力耦合器导风散热装置的进风孔进行仿真分析。首先,设计3种面积、开孔位置相同的进风孔,利用计算流体力学软件Fluent对模型的热场和流场进行流固耦合模拟,通过分析其最高温升及阻力矩选择合理有效的进风方案;其次,对选择出的进风方案进行倾斜开孔,分析不同倾斜角度对最高温升及阻力矩的影响关系,寻找较优倾斜角度;最后,进行不同的开孔个数模拟分析选择较优开孔个数。对比结果显示,合理开设倾斜进风孔可以有效降低永磁磁力耦合器整体最高温升和内部永磁体的最高温升,改变永磁体温度分布情况,降低外部转子的中心高温区温度,具有一定的实用价值。
The simulation analysis of a new inlet hole of a novel permanent magnet magnetic coupling wing cooling device is carried out. Firstly, the computational fluid dynamics software Fluent is used to simulate thermal field and flow field flow of three inlet opening holes of same area and same location, the optimum solution could be obtained through analyzing its maximum temperature rise and resistance. Secondly, the selected air in- take scheme is tilt open holes, optimum tilt angle could be found by analyzing the relationship between different tilt angles from the maximum temperature rise and resistance. Finally, optimum aperture opening number could be selected by arranging the different number to analysis. Comparative results show that reasonable opened tilt inlet hole, the maximum temperature rise of the permanent magnetic coupling and the overall maximum temperature rise inside the permanent magnet could be effectively reduced, the temperature distribution in permanent is changed, the central hot zone temperature of outer rotor is reduced. It has some practical value.
出处
《机械传动》
CSCD
北大核心
2017年第6期169-173,共5页
Journal of Mechanical Transmission
基金
国家科技型中小企业创新基金(12C26214405347)
广东省自然科学基金(9152500002000003)
广东省教育厅科技创新项目(2012KJCX0076)
