Dynamic Characteristics Analysis and Enhancement for Superconducting EDS Trains at Curved Track

The studies of superconducting electrodynamic suspension (EDS) have gradually received more and more attention in recent years. As the inevitable line condition, the horizontal curved track would change the relative spatial position between the onboard superconducting magnet (SCM) and ground levitat...

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Veröffentlicht in:IEEE transactions on transportation electrification Jg. 11; H. 6; S. 1
Hauptverfasser: Feng, Piji, Ma, Guangtong, Su, Zhenhua, Cui, Libin, Zhu, Taoning, Luo, Jun, Song, Mingyan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Piscataway IEEE 2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Analytical models
Coils
curved track
Dynamic characteristics
Dynamic models
Dynamics
Electrodynamic suspension (EDS)
Electromagnetic forces
Higher harmonics
Lateral displacement
Levitation
semi-active control
Semiactive suspensions
Springs
Superconducting coils
Superconducting magnets
Superconductivity
Suspensions (mechanical systems)
Tracking
Vehicle dynamics
Vibrations
ISSN:2332-7782, 2577-4212, 2332-7782
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Zusammenfassung:The studies of superconducting electrodynamic suspension (EDS) have gradually received more and more attention in recent years. As the inevitable line condition, the horizontal curved track would change the relative spatial position between the onboard superconducting magnet (SCM) and ground levitation/guidance (LG) coils, resulting in the different vehicle-track coupled forces compared to straight track conditions, which prominently influences the dynamic performance of EDS trains. This paper proposed an analytical calculation method of vehicle-track force that can describe arbitrary curved track parameters. Based on this calculation method, the dynamic model of EDS trains considering the curved track conditions was built. Meanwhile, an equivalent loading method for track irregularities was proposed, which is applicable to both real electromagnetic force case and fitting force case in dynamic scenarios. The calculation results indicate that under curved track conditions, the lateral and rolling dynamic characteristics of vehicles deteriorates significantly and the effect of the higher harmonics of electromagnetic forces is enhanced. In order to suppress the violent vibration of SCMs, a ground-hook semi-active strategy at the primary suspension was adopted and the results indicate that it can effectively improve the lateral displacements and accelerations of SCM units, but the suppressing effect of high-frequency vibrations is moderate. This research provides valuable references to clarify the dynamic characteristics of EDS trains at curved track and a new approach to suppress vibrations of SCMs.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2332-7782
2577-4212
2332-7782
DOI:10.1109/TTE.2025.3596149