Multi-field analysis of energy loss and temperature distribution in magnetic couplings
The operation of magnetic couplings produces eddy current losses that lead to heat buildup. Excessive temperatures can demagnetize the couplings, ultimately causing transmission failure. Multi-field coupling was investigated in this study through numerical simulation and modeling methods to study ed...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0269744 |
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| author | Shuangcheng Fu Dong Yang Zenghui Wu Minghui Xu Liang Tao Faqi Zhou |
| author_facet | Shuangcheng Fu Dong Yang Zenghui Wu Minghui Xu Liang Tao Faqi Zhou |
| author_sort | Shuangcheng Fu |
| collection | DOAJ |
| description | The operation of magnetic couplings produces eddy current losses that lead to heat buildup. Excessive temperatures can demagnetize the couplings, ultimately causing transmission failure. Multi-field coupling was investigated in this study through numerical simulation and modeling methods to study eddy current loss and heat generation issues arising in magnetic coupling operation. The results indicate that the distribution of eddy current loss aligns with the magnetic induction current distribution. Fewer magnetic induction lines pass radially through the isolation sleeve as the magnetic turning angle increases, leading to a decrease in eddy current losses. The isolation sleeve cuts through the highest number of magnetic induction lines when the magnetic turning angle is 0°, resulting in the maximum eddy current loss. As the speed increases, the eddy current loss increases. Eddy current losses lead to temperature variations in couplings. An isolation sleeve forms a high-temperature section between the inner and outer magnets that overlaps with the highest eddy current loss distribution. Temperatures on the isolation sleeve and the inner and outer magnets follow a stratified pattern, with temperatures on the coupling components symmetrically arranged along the circumference. The difference between the eddy current loss P from Maxwell simulations and the cooling water heat transfer Qs from Fluent simulations is 2%. Experimental results show that the measured heat transfer Qe differs by about 9.8% relative to the simulated heat transfer Qs. This margin of error is within an acceptable range, verifying the accuracy of the simulation method. |
| format | Article |
| id | doaj-art-2e224db8f1d9429c9faec8fcd198420f |
| institution | DOAJ |
| issn | 2158-3226 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj-art-2e224db8f1d9429c9faec8fcd198420f2025-08-20T03:19:43ZengAIP Publishing LLCAIP Advances2158-32262025-05-01155055033055033-1210.1063/5.0269744Multi-field analysis of energy loss and temperature distribution in magnetic couplingsShuangcheng Fu0Dong Yang1Zenghui Wu2Minghui Xu3Liang Tao4Faqi Zhou5School of Mechanical Engineering and Rail Transit, Changzhou University, No. 21 Gehu Middle Road, Changzhou, Jiangsu 213164, ChinaSchool of Mechanical Engineering and Rail Transit, Changzhou University, No. 21 Gehu Middle Road, Changzhou, Jiangsu 213164, ChinaAnhui Ruixu Mixng Equipment Co., Ltd., Changde, Anhui 242000, ChinaSchool of Mechanical Engineering and Rail Transit, Changzhou University, No. 21 Gehu Middle Road, Changzhou, Jiangsu 213164, ChinaSchool of Mechanical Engineering and Rail Transit, Changzhou University, No. 21 Gehu Middle Road, Changzhou, Jiangsu 213164, ChinaSchool of Mechanical Engineering and Rail Transit, Changzhou University, No. 21 Gehu Middle Road, Changzhou, Jiangsu 213164, ChinaThe operation of magnetic couplings produces eddy current losses that lead to heat buildup. Excessive temperatures can demagnetize the couplings, ultimately causing transmission failure. Multi-field coupling was investigated in this study through numerical simulation and modeling methods to study eddy current loss and heat generation issues arising in magnetic coupling operation. The results indicate that the distribution of eddy current loss aligns with the magnetic induction current distribution. Fewer magnetic induction lines pass radially through the isolation sleeve as the magnetic turning angle increases, leading to a decrease in eddy current losses. The isolation sleeve cuts through the highest number of magnetic induction lines when the magnetic turning angle is 0°, resulting in the maximum eddy current loss. As the speed increases, the eddy current loss increases. Eddy current losses lead to temperature variations in couplings. An isolation sleeve forms a high-temperature section between the inner and outer magnets that overlaps with the highest eddy current loss distribution. Temperatures on the isolation sleeve and the inner and outer magnets follow a stratified pattern, with temperatures on the coupling components symmetrically arranged along the circumference. The difference between the eddy current loss P from Maxwell simulations and the cooling water heat transfer Qs from Fluent simulations is 2%. Experimental results show that the measured heat transfer Qe differs by about 9.8% relative to the simulated heat transfer Qs. This margin of error is within an acceptable range, verifying the accuracy of the simulation method.http://dx.doi.org/10.1063/5.0269744 |
| spellingShingle | Shuangcheng Fu Dong Yang Zenghui Wu Minghui Xu Liang Tao Faqi Zhou Multi-field analysis of energy loss and temperature distribution in magnetic couplings AIP Advances |
| title | Multi-field analysis of energy loss and temperature distribution in magnetic couplings |
| title_full | Multi-field analysis of energy loss and temperature distribution in magnetic couplings |
| title_fullStr | Multi-field analysis of energy loss and temperature distribution in magnetic couplings |
| title_full_unstemmed | Multi-field analysis of energy loss and temperature distribution in magnetic couplings |
| title_short | Multi-field analysis of energy loss and temperature distribution in magnetic couplings |
| title_sort | multi field analysis of energy loss and temperature distribution in magnetic couplings |
| url | http://dx.doi.org/10.1063/5.0269744 |
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