An axial passive magnetic bearing using three PM rings
Abstract The results of numerical and experimental analysis of passive magnetic bearings are presented. The proposed structure is composed of three radially stacked ring‐shaped permanent magnets. The improvements of stiffness and load capacity are proven in comparison to the classical passive magnet...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-04-01
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| Series: | IET Electric Power Applications |
| Online Access: | https://doi.org/10.1049/elp2.12030 |
| _version_ | 1811281407201247232 |
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| author | Fabrizio Marignetti Milad AlizadehTir Seyyed Mehdi Mirimani |
| author_facet | Fabrizio Marignetti Milad AlizadehTir Seyyed Mehdi Mirimani |
| author_sort | Fabrizio Marignetti |
| collection | DOAJ |
| description | Abstract The results of numerical and experimental analysis of passive magnetic bearings are presented. The proposed structure is composed of three radially stacked ring‐shaped permanent magnets. The improvements of stiffness and load capacity are proven in comparison to the classical passive magnetic bearing composed of two rings. A preliminary sensitivity analysis is carried out by means of the 2‐dimensional finite element method (FEM) modelling, which is used to provide the initial points for the stochastic optimisation and also to define the best fitness and penalty functions. Finally, the 2‐dimensional FEM is used to compare the force density and the cost of the proposed structure to those of the classical passive magnetic bearing composed of two rings. The optimised structure was manufactured and validated by experimental measurements. The proposed passive magnetic bearing exerts greater axial force and stiffness than similar structures. |
| first_indexed | 2024-04-13T01:33:19Z |
| format | Article |
| id | doaj.art-74d376e744e342e29b1aa39abf8fed11 |
| institution | Directory Open Access Journal |
| issn | 1751-8660 1751-8679 |
| language | English |
| last_indexed | 2024-04-13T01:33:19Z |
| publishDate | 2021-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electric Power Applications |
| spelling | doaj.art-74d376e744e342e29b1aa39abf8fed112022-12-22T03:08:28ZengWileyIET Electric Power Applications1751-86601751-86792021-04-0115441542810.1049/elp2.12030An axial passive magnetic bearing using three PM ringsFabrizio Marignetti0Milad AlizadehTir1Seyyed Mehdi Mirimani2Department of Electrical and Information Engineering University of Cassino and South Lazio Cassino ItalyDepartment of Electrical and Information Engineering University of Cassino and South Lazio Cassino ItalyFaculty of Electrical and Computer Engineering Babol Noshirvani University Babol IranAbstract The results of numerical and experimental analysis of passive magnetic bearings are presented. The proposed structure is composed of three radially stacked ring‐shaped permanent magnets. The improvements of stiffness and load capacity are proven in comparison to the classical passive magnetic bearing composed of two rings. A preliminary sensitivity analysis is carried out by means of the 2‐dimensional finite element method (FEM) modelling, which is used to provide the initial points for the stochastic optimisation and also to define the best fitness and penalty functions. Finally, the 2‐dimensional FEM is used to compare the force density and the cost of the proposed structure to those of the classical passive magnetic bearing composed of two rings. The optimised structure was manufactured and validated by experimental measurements. The proposed passive magnetic bearing exerts greater axial force and stiffness than similar structures.https://doi.org/10.1049/elp2.12030 |
| spellingShingle | Fabrizio Marignetti Milad AlizadehTir Seyyed Mehdi Mirimani An axial passive magnetic bearing using three PM rings IET Electric Power Applications |
| title | An axial passive magnetic bearing using three PM rings |
| title_full | An axial passive magnetic bearing using three PM rings |
| title_fullStr | An axial passive magnetic bearing using three PM rings |
| title_full_unstemmed | An axial passive magnetic bearing using three PM rings |
| title_short | An axial passive magnetic bearing using three PM rings |
| title_sort | axial passive magnetic bearing using three pm rings |
| url | https://doi.org/10.1049/elp2.12030 |
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