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Dynamic Analysis and Vibration Reduction of HTS Maglev Vehicle Using MRD Semi-Active Control
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DOI：10.1109/TIV.2026.3690344.png)
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Abstract
En 中文
The limited intrinsic damping characteristics of the high-temperature superconducting (HTS) pinning maglev system pose challenges to effective vehicle vibration reduction under external disturbances such as permanent magnetic guideway (PMG) irregularities. This paper incorporates a magnetorheological damper (MRD) into the secondary suspension of HTS maglev vehicles for semi-active vibration control. First, an MRD dynamic model considering the influence of current is presented, and a vehicle dynamic model developed based on an existing HTS pinning maglev test line and HTS-PMG relationship obtained from experiments. Subsequently, a semi-active vibration reduction co-simulation model is constructed using the skyhook (SH) linear continuous control strategy to evaluate the vertical and lateral dynamic performance of the car body under different operating speeds influenced by PMG irregularities. The results indicate that the semi-active damping strategy based on MRD ensures safe operation while effectively reducing car body vibration, achieving over 50% vibration reduction rate at higher speeds, demonstrating its clear potential for improving the dynamic performance of HTS maglev vehicles in practical engineering.
Keywords:
Dynamic model
high-temperature superconducting (HTS) maglev
magnetorheological damper (MRD)
vibration reduction
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