자기부상열차 분기구간 주행 시 진동 특성 해석
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The dynamic interaction between switch and Maglev(Magnetic levitation) vehicle must be investigated to ensure the running stability of the vehicle. The Maglev switch usually has higher natural frequencies because it is made of mainly steel structures. Due to the vibration characteristics, resonance between electromagnetic suspension and switch could be occurred, which causes instability. The objective of the paper is to study the dynamic interaction considering the flexibility of switch. The 3-d flexible multibody dynamic model including magnetic levitation control system is proposed. With the coupled, the dynamic interaction of the vehicle with the flexible switch is numerically analyzed. The results from the numerical simulations could be applied to optimum structural design of the switch ensuring stability.
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