동특성 상사 법칙 기반 축소 차량 모델을 이용한 캡슐트레인 차체의 진동 제어 연구

초록

As levitation for the capsule train introduced in this study, a superconducting electrodynamic suspension (SC-EDS) method is proposed given the possibility of large levitation gap without complex control. However, the weak points of SC-EDS, such as small damping characteristic and large gap variation, can increase the vibration, resulting in poor running stabilization and ride comfort. Therefore, in addition to normal secondary suspension in the capsule train, active actuators should be applied to control vibration. In this study, to investigate the effect of active actuators in controlling vibration, a 1/10 reduced-scale vehicle model, which can reproduce the dynamic characteristics of a real capsule train, was developed based on the similarity law. As active actuators, voice coil motors were installed in the secondary suspension of the model, and controllers to operate these motors were designed. The suitability of the developed model and the effects of the active actuators were investigated through experiments. The variation effects of several factors, such as controller design variables and external disturbance on the vibration, were determined.

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