Study on Running Safety of EMS-Type Maglev Vehicle Traveling over a Switching System

Han, Jong-Boo; Lee, Jong Min; Han, Hua; Kim, Sung‐Soo; Yang, Seok-Jo; Kim, Ki‐Jung

doi:10.3795/ksme-a.2014.38.11.1309

Cited by 4 publications

(2 citation statements)

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“…또한 곡선 가이드웨이의 반경을 매개변수로 하여 차량 동특성을 해석하는 연구가 진행된 바 있다 [6]. 자기부상열차용 분기기에 관한 기존 연구를 살펴보면 관절식 분기기 곡선구간에서 거더 길이, 굴절각 등의 설계 변수 가 주행 안전성에 미치는 영향에 대해 연구한 바 있다 [7]. 또한 직선 구간에서 강재 분기기 진동과 자기부상열차 부상안정성의 상관관계에 대해 연구가 진행된 바 있다 [8].…”

Section: 자기부상열차의 곡선 가이드웨이에 관한 기존 연구를 살펴보면 자기부상열차 가이드웨이 진동특성이 차량 동특성에 미치는unclassified

“…현재 개발된 해석 모델은 한국기계연구원에 설치된 분기기 시스템에서의 차량 주행 실험을 통해 실제 시스템과 유사함을 입 증하였다 [7,8]. 또한 선행연구를 통해 설계 기준에 따른 거더 높이별 응력 및 처짐 해석을 통해 구조적 안전성을 확보하고 있음 을 판단하였다 [14].…”

Section: 해 석unclassified

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Parametric Study on 3-way Switch Design Considering Levitation Stability of Maglev Train

Lee¹,

Han²,

Lim³

et al. 2016

Journal of the Korean society for railway

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It is essential to lighten the weight of switch girders in order to reduce their costs of manufacturing and make it easier to use them in construction. Lightening the weight of switch is also important to the Maglev 3-way switches system, however, the design variables should be considered very carefully if lightening is to be applied to the system, because these variables are vitally related to the levitation stability. Because Urban Maglev trains have a structure in which train bogie wraps around the guiderail, the adjustment of a girder's height is a possible way to reduce the weight. The safety of the application of this concept is ensured by repeated experiments in a test bed, however, due to a lack of space and budget limits, the design parametric study for the system model can substitute for actual application. The purpose of this paper is to study the design parameters that are concerned with levitation stability while a Maglev train is running on the Maglev 3-way system depending on the weight of the switch girders. In this study, switch girder weight is reduced by adjustment of girder height and girders are and modeled as a flexible body. The effect of the adjustment of girder height on the levitation stability can be analyzed by comparing the velocity of the train when it passes the switch girders, with the lateral gap, and the levitation gap which are obtained from the co-simulation of the Maglev train's dynamics model and flexible switching system. The results of this research will be used to design a Maglev switch.

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Section: 자기부상열차의 곡선 가이드웨이에 관한 기존 연구를 살펴보면 자기부상열차 가이드웨이 진동특성이 차량 동특성에 미치는unclassified

Section: 해 석unclassified