Prediction of ride quality of a Maglev vehicle using a full vehicle multi-body dynamic model

Han, Hyung-Suk; Yim, B. H.; Lee, N. J.; Kim, Y. J.

doi:10.1080/00423110802632063

Cited by 25 publications

(9 citation statements)

References 4 publications

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“…Generally, most researches have been carried out for 2D maglev vehicle models, and few studies have employed simple 3D vehicle models [22,23,25,26]. Compared to traditional wheel train studies using very sophisticated vehicle models, the simplified maglev vehicle models do not adequately reflect the dynamic effects.…”

Section: Introductionmentioning

confidence: 99%

Gust Wind Effects on Stability and Ride Quality of Actively Controlled Maglev Guideway Systems

Min

Kwon

Kwark³

et al. 2017

Shock and Vibration

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The purpose of this paper is to present a framework to analyze the interaction between an actively controlled magnetic levitation vehicle and a guideway structure under gusty wind. The equation of motion is presented for a 30-dof maglev vehicle model consisting of one cabin and four bogies. In addition, a lateral electromagnetic suspension (EMS) system is introduced to improve the running safety and ride quality of the maglev vehicle subjected to turbulent crosswind. By using the developed simulation tools, the effects of various parameters on the dynamic response of the vehicle and guideway are investigated in the case of the UTM maglev vehicle running on a simply supported guideway and cable-stayed guideway. The simulation results show that the independent lateral EMS and associated control scheme are definitely helpful in improving the running safety and ride quality of the vehicle under gusty wind. In the case of the cable-stayed guideway, at low wind speed, vehicle speed is the dominant factor influencing the dynamic responses of the maglev vehicle and the guideway, but at wind speed over 10 m/s, wind becomes the dominant factor. For the ride quality of the maglev vehicle, wind is also the most influential factor.

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Section: Introductionmentioning

confidence: 99%

Gust Wind Effects on Stability and Ride Quality of Actively Controlled Maglev Guideway Systems

Min

Kwon

Kwark³

et al. 2017

Shock and Vibration

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“…They are shown in Figures 3 to 5. The surface roughnesses in two plans in Figure 5 are numerically generated by using random function based on measured profiles [5][6]. All the irregularities are combined and then input as disturbance to the vehicle.…”

Section: Guideway Irregularitymentioning

confidence: 99%

“…The train employs the 5 states feedback control law to maintain the change in () ct  within an allowable magnitude [6]. Using the control law, the controlled voltage is determined by k , k , k , k , k : Control gains.…”

Section: Levitation Controlmentioning

confidence: 99%

Air Gap Control Simulation of Maglev Vehicles with Feedback Control System

Kim¹,

Han²,

Yang

2013

IJCA

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“…정의된 벡터에 의해 식 (6)과 같은 가이드레일과 전자석의 기구학식을 정의할 수 있고, 식 (7)을 이용하여 제어에 이용할 수 있는 상대변위 값으로 변환하였다. (10) ' ' tm t m ot t ot om m om (10) ' '…”

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“…2.4 부상제어기 부상제어를 위해 식 (10)과 같은 제어 전압 변 (10) 따라서 횡댐퍼의 설치는 주행 안정성 측면에서도 좋은 효과를 기대할 수 있다. (13,14) 결과적으로 본 논문의 결과를 통하여 U 자형 전자석을 사용하는 자기부상열차의 횡방향 진동을 횡댐퍼를 이용하여 줄일 수 있는 것을 알 수 있다.…”

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Lateral Vibration Reduction of a Maglev Train Using U-shaped Electromagnets

Han¹,

Kim²,

Han³

et al. 2012

Transactions of the Korean Society of Mechanical Engineers A

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For an electromagnetic suspension (EMS)-type urban Maglev train using U-shaped electromagnets, both the vertical and the lateral air gaps for levitation are maintained only by the electromagnet. The train can run over curved rails without active lateral air gap control because the U-shaped electromagnet simultaneously produces both a levitation force and a guidance force, which is dependent on the levitation force. Owing to the passive control of the lateral air gap, the lateral vibration could exceed the limits of the lateral air gap and acceleration. In this study, dynamic analysis of a Maglev train is carried out, and the effectiveness of a lateral damper for vibration reduction is investigated. To more accurately predict the lateral vibration, a Maglev vehicle multibody model including air-sparing, guideway irregularities, electromagnets, and their controls is developed.

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Prediction of ride quality of a Maglev vehicle using a full vehicle multi-body dynamic model

Cited by 25 publications

References 4 publications

Gust Wind Effects on Stability and Ride Quality of Actively Controlled Maglev Guideway Systems

Gust Wind Effects on Stability and Ride Quality of Actively Controlled Maglev Guideway Systems

Air Gap Control Simulation of Maglev Vehicles with Feedback Control System

Lateral Vibration Reduction of a Maglev Train Using U-shaped Electromagnets

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