TY - JOUR
T1 - Characterization of LCR Parallel-Type Electromagnetic Shunt Damper for Superconducting Magnetic Levitation
AU - Fujita, Kentaro
AU - Sugiura, Toshihiko
N1 - Funding Information:
This work was partially supported by a 2017 grant from Tsugawa Foundation, a public interest incorporated foundation. It was established by the founder of Odawara Engineering Corporation, which provides winding equipment for motors, with his private funds to contribute to the promotion of academic research related to motors.
Publisher Copyright:
© 2022 by the authors.
PY - 2022/8
Y1 - 2022/8
N2 - This study investigated the effect of electromagnetic shunt dampers on the resonance amplitude reduction in a superconducting magnetic levitation system. There are two types of electromagnetic shunt dampers, series type and parallel type, depending on the configuration of the electric circuit, and their damping characteristics may differ depending on the external resistance value in the circuit. In this study, after discussing the vibration-suppression effects of both types according to the governing equations, vibration experiments were conducted using both dampers with different resistance values. As a result, it was confirmed that, for the larger resistance value, the amplitude reduction effect is smaller in the series-type damper, while it remained high in the parallel type. We also performed numerical integrations, including the nonlinearity of magnetic force in the superconducting magnetic levitation system. As a result, it was numerically confirmed that the parallel-type damper can also be expected to reduce amplitude at a resonance caused by nonlinearity.
AB - This study investigated the effect of electromagnetic shunt dampers on the resonance amplitude reduction in a superconducting magnetic levitation system. There are two types of electromagnetic shunt dampers, series type and parallel type, depending on the configuration of the electric circuit, and their damping characteristics may differ depending on the external resistance value in the circuit. In this study, after discussing the vibration-suppression effects of both types according to the governing equations, vibration experiments were conducted using both dampers with different resistance values. As a result, it was confirmed that, for the larger resistance value, the amplitude reduction effect is smaller in the series-type damper, while it remained high in the parallel type. We also performed numerical integrations, including the nonlinearity of magnetic force in the superconducting magnetic levitation system. As a result, it was numerically confirmed that the parallel-type damper can also be expected to reduce amplitude at a resonance caused by nonlinearity.
KW - amplitude reduction
KW - electromagnetic shunt damper
KW - electromechanical coupling
KW - nonlinear resonance
KW - superconducting magnetic levitation
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U2 - 10.3390/act11080216
DO - 10.3390/act11080216
M3 - Article
AN - SCOPUS:85137355071
VL - 11
JO - Actuators
JF - Actuators
SN - 2076-0825
IS - 8
M1 - 216
ER -