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| 风冷永磁调速器散热结构热-流耦合分析 |
| Thermal-flow Coupling Analysis of Heat Dissipation Structure of Air-cooled Permanent Magnet Governor |
| 投稿时间：2023-10-18 修订日期：2023-10-18 |
| DOI： |
| 中文关键词: 永磁调速器 温度分析 流场分析 ANSYS 散热 |
| 英文关键词: Permanent magnet governor Temperature analysis Flow field analysis ANSYS Heat dissipation |
| 基金项目:汽车新技术安徽省工程技术研究中心开放基金(QCKJ202008),国家自然科学基金青年项目(12205004),安徽省智能矿山技术与装备工程实验室开放研究课题(AIMTEEL202201),安徽省自然科学基金资助项目(1908085QA25) |
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| 中文摘要: |
| 由于永磁调速器在工作时会因为高速旋转会产生大量热量,而高温会导致永磁体退磁,减少导体转子与永磁转子间磁感线的切割,进而影响风冷型永磁调速器的工作效率和工作性能,因此,需要设计一种新的风冷散热结构,基于筒型永磁调速器的设计结构及其工作原理,建立热-流耦合模型,之后,通过仿真分析,得到了筒型永磁调速器的温度场和流场仿真结果,流场速度迹线与实际工况相吻合；对比永磁调速器各个部件的温度分布情况,相同工况下,铜环的热量最大,并通过与现场试验数据对比,得到铜环的温差约为0.5℃,验证该散热结构合理可行。 |
| 英文摘要: |
| Due to the high temperature will lead to permanent magnet demagnetization, thereby affecting the performance of the air-cooled permanent magnet governor, therefore, it is necessary to design a new air-cooled heat dissipation structure. Based on the structure and working principle of the permanent magnet governor, the mathematical model of heat-flow coupling is established. Then, the finite element simulation analysis is carried out with the help of ANSYS software. The temperature field and flow field simulation results of the governor are obtained, and the flow field velocity trace is consistent with the actual working conditions. Comparing the temperature distribution of each component of the permanent magnet governor, the heat of the copper ring is the largest under the same working conditions. By comparing with the field test data, the temperature difference of the copper ring is about 0.5 °C, which verifies that the heat dissipation structure is reasonable and feasible. |
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