&lt;b&gt;Characteristics of Magnetic Springs for Guidance of Superconducting Maglev Vehicles&lt;/b&gt;

Yonezu, Takenori; Watanabe, Ken; Suzuki, Eiji; Sasakawa, Takashi

doi:10.2219/rtriqr.59.4_293

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…In order to simplify the calculation, vector magnetic potential A is introduced and shown in equation ( 4). Then electromagnetic fields in subdomains 1, 3 and 5 can be obtained by combining (1)-( 4) and expressed in equation ( 5), and electromagnetic fields in subdomains 2 and 4 are given by equations ( 6) and (7), respectively.…”

Section: Analysis On Magnetic Fieldmentioning

confidence: 99%

“…The second category, EDS, achieves levitation by using the repulsive force between two magnetic fields of vehicle and track. 7 Electrodynamic Suspension system is divided into two types: low-temperature superconducting EDS system and permanent magnet (PM) EDS system. Since the 1970s, low-temperature superconducting EDS technology has gradually matured after years of development, 8 while PM EDS technologies represented by the Magnetbahn 9 in Germany, Magplane 10 and Inductrack 11 systems in the USA have not been validated for engineering purposes because of historical reasons.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A fast dynamic model of a two-sided permanent magnet electrodynamic suspension system in a maglev train

Wang

Luo

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

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In vehicle dynamics research, a dynamics model is essential, as it provides the basis for the demonstration of early system design of vehicle as well as the verification and optimization of the dynamics performance of the final product. To promote the development of a permanent magnet (PM) Electrodynamic Suspension (EDS) in a maglev train, research was carried out in order to explore a fast dynamics modeling, with suspension system based on two-sided PM. First of all, a halbach array was taken as the object of study, with the analytical solution of its magnetic force obtained by theoretical derivation according to magnet filed and 2D analytical method; then, the magnetic force was discretized into a data matrix of displacement, force, and speed; thirdly, the data matrix was introduced in SIMPACK to establish a magnet-track relationship in scalar form, and a dynamics model of the two-sided PM EDS maglev system was finished by the theory of multi-body dynamics modeling; finally, the proposed modeling was validated by the agreement between theoretical derivation and dynamics model calculation of the heaving frequency and pitching frequency of the frame; at the same time, it was also validated by the agreement of dynamic responses between the modeling by vehicle-track coupled dynamics theory and the dynamic model calculation of the levitation gap and force. According to the established dynamics model, dynamic response of the system at the speed of 600 km/h was calculated, and the feasibility of the two-sided PM EDS maglev train was verified. The simulation speed of model which was established before is 50 times that of the mathematical model by the vehicle-track coupled dynamics, thus providing reference for the future research in this regard.

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Section: Analysis On Magnetic Fieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A fast dynamic model of a two-sided permanent magnet electrodynamic suspension system in a maglev train

Wang

Luo

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

show abstract

“…In [9], Toshiaki Murai et al used the optimization program to analyze the effect of rolling stiffness on lifting speed. In [10], Takenori Yonezu et al used computer simulation method to analyze the influence of air gap and magnetomotive force of vehicle coil on rolling stiffness. In [11], Hiroshi Yoshioka et al introduced the change trend of electromagnetic stiffness, including rotational stiffness, in the actual operation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Rotational Magnetic Springs for EDS Maglev Train

Lv¹,

Liu²,

Zhang³

et al. 2022

Trans. Electr. Mach. Syst.

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Different from the traditional railway trains, the combined levitation and guidance EDS maglev train is more likely to rotate after being disturbed. Therefore, the rotational electromagnetic stiffnesses are significant operating parameters for the train. In this paper, the different effects of each translational offset generated in the rotational motion on the corresponding rotational electromagnetic stiffnesses in the EDS maglev train are analyzed and calculated. Firstly, a three-dimensional model of the maglev train is established. Then, based on the space harmonic method and the equivalent circuit of the levitation and guidance circuits, the formulas of rolling, pitching and yawing stiffness are presented. Finally, by comparing with the three-dimensional finite element simulation results, the key translational displacements in the rotational motion which has a great impact on the stiffness are obtained. Hence, the three-dimensional analytical formula can be simplified and the computation can be reduced. In addition, the accuracy of the calculation results is verified by comparing with the experimental data of Yamanashi test line.

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A new suppression strategy of pitching vibration based on the magnetic-electric-mechanical coupling dynamic model for superconducting EDS transport system

Zhu

Huang

et al. 2023

Mechanical Systems and Signal Processing

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<b>Characteristics of Magnetic Springs for Guidance of Superconducting Maglev Vehicles</b>

Cited by 7 publications

References 4 publications

A fast dynamic model of a two-sided permanent magnet electrodynamic suspension system in a maglev train

A fast dynamic model of a two-sided permanent magnet electrodynamic suspension system in a maglev train

Numerical Analysis of the Rotational Magnetic Springs for EDS Maglev Train

A new suppression strategy of pitching vibration based on the magnetic-electric-mechanical coupling dynamic model for superconducting EDS transport system

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