A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles
In the plate-type permanent magnet electrodynamic suspension (PMEDS) vehicle, expansion joints in discrete conductive plates trigger the eddy current truncation effect, thereby causing an attenuation in the levitation force. To address this issue, a novel overlapped compensation structure is propose...
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| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/14/4/182 |
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| author | Shuqing Zhang Siyi Wu Hongfu Shi Zhengyan Li Zigang Deng |
| author_facet | Shuqing Zhang Siyi Wu Hongfu Shi Zhengyan Li Zigang Deng |
| author_sort | Shuqing Zhang |
| collection | DOAJ |
| description | In the plate-type permanent magnet electrodynamic suspension (PMEDS) vehicle, expansion joints in discrete conductive plates trigger the eddy current truncation effect, thereby causing an attenuation in the levitation force. To address this issue, a novel overlapped compensation structure is proposed, and its effectiveness is verified via simulation and experiment. First, the overlapped compensation structure and principle are introduced, followed by its theoretical model. Additionally, the comparative time-varying levitation force, along with its attenuation percentages, is analyzed under different guideways. Additionally, the optimal structure specifications covering overlapped thickness and length are studied, followed by a design guideline. In addition, dynamic analysis of a single bogie is carried out to analyze the effectiveness of the overlapped compensation structure in terms of vertical stability improvement. Lastly, the equivalent experiments are implemented to further confirm the proposed overlapped compensation structure. The experiment’s result reveals that compared to the original guideway expansion joint, the overlapped compensation structure can reduce levitation force attenuation by 20%. This work is expected to provide a reference for conductive plate guideway establishment in practical applications. |
| format | Article |
| id | doaj-art-7d2c1fb8442c4edc9e33e0a4f5539bcc |
| institution | DOAJ |
| issn | 2076-0825 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj-art-7d2c1fb8442c4edc9e33e0a4f5539bcc2025-08-20T03:14:13ZengMDPI AGActuators2076-08252025-04-0114418210.3390/act14040182A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS VehiclesShuqing Zhang0Siyi Wu1Hongfu Shi2Zhengyan Li3Zigang Deng4State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaIn the plate-type permanent magnet electrodynamic suspension (PMEDS) vehicle, expansion joints in discrete conductive plates trigger the eddy current truncation effect, thereby causing an attenuation in the levitation force. To address this issue, a novel overlapped compensation structure is proposed, and its effectiveness is verified via simulation and experiment. First, the overlapped compensation structure and principle are introduced, followed by its theoretical model. Additionally, the comparative time-varying levitation force, along with its attenuation percentages, is analyzed under different guideways. Additionally, the optimal structure specifications covering overlapped thickness and length are studied, followed by a design guideline. In addition, dynamic analysis of a single bogie is carried out to analyze the effectiveness of the overlapped compensation structure in terms of vertical stability improvement. Lastly, the equivalent experiments are implemented to further confirm the proposed overlapped compensation structure. The experiment’s result reveals that compared to the original guideway expansion joint, the overlapped compensation structure can reduce levitation force attenuation by 20%. This work is expected to provide a reference for conductive plate guideway establishment in practical applications.https://www.mdpi.com/2076-0825/14/4/182plate-type PMEDSeddy current truncationlevitation force attenuationoverlapped compensation structurevertical stability improvement |
| spellingShingle | Shuqing Zhang Siyi Wu Hongfu Shi Zhengyan Li Zigang Deng A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles Actuators plate-type PMEDS eddy current truncation levitation force attenuation overlapped compensation structure vertical stability improvement |
| title | A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles |
| title_full | A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles |
| title_fullStr | A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles |
| title_full_unstemmed | A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles |
| title_short | A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles |
| title_sort | novel overlapped compensation structure and its effectiveness verification for expansion joints in plate type pmeds vehicles |
| topic | plate-type PMEDS eddy current truncation levitation force attenuation overlapped compensation structure vertical stability improvement |
| url | https://www.mdpi.com/2076-0825/14/4/182 |
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