Dynamic Simulation of the Maglev Vehicle/Guideway System

Ren, Shisong; Romeijn, A.; Klap, Kees

doi:10.1061/(asce)be.1943-5592.0000071

Cited by 47 publications

(31 citation statements)

References 7 publications

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“…shown that the guideway irregularity is one of the main reasons that induce random vibration of the vehicle and guideway [29]. Frequency characteristic of guideway irregularity can be expressed by the PSD function.…”

Section: Psd Of Guideway Irregularity Many Researches Havementioning

confidence: 99%

Random Vibration Analysis of Coupled Three-Dimensional Maglev Vehicle-Bridge System

Wei

Guo

2019

Advances in Civil Engineering

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is paper presents a framework for the linear random vibration analysis of the coupled three-dimensional (3D) maglev vehiclebridge system. Except for assembling the equation of motion of vehicle only via the principle of virtual work, the fully computerized approach is further expanded to assemble the governing equation of fluctuating current via the equilibrium relation. A state-space equation couples the equation of motion of the vehicle and the governing equation of fluctuating current. e equation of motion of a real three-span space continuous girder bridge is established by using finite element methods. A separated iteration method based on the precise integration method and the Newmark method is introduced to solve the state-space equation for the maglev vehicle and the equation of motion for the bridge. Moreover, a new scheme to application of the pseudoexcitation method (PEM) in random vibration analysis is proposed to maximize the computational efficiency of the random vibration analysis of the maglev vehicle-bridge system. Finally, the numerical simulation demonstrates that the proposed framework can efficiently obtain the mean value, root mean square (RMS), standard deviation (SD), and power spectral density (PSD) of dynamic response for the coupled 3D maglev vehicle-bridge system.

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Section: Psd Of Guideway Irregularity Many Researches Havementioning

confidence: 99%

Random Vibration Analysis of Coupled Three-Dimensional Maglev Vehicle-Bridge System

Wei

Guo

2019

Advances in Civil Engineering

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“…Rail irregularity parameters in this study are shown in Table 1. In the static equilibrium state, the maglev train will be levitated by the electromagnetic force, implying equalization between the weight of the maglev train and the electromagnetic force, (6) where and are the desired values of the control current and the height of levitation gap, respectively. is the static load acting on the magnetic wheel due to the weight of the maglev train.…”

Section: Control System Of Maglev Trainsmentioning

confidence: 99%

“…Yau in 2009 [5] indicated that the increase in levitation gap for a maglev vehicle might result in larger vehicle's response, but the response of the maglev vehicle with smaller air gap would be significantly amplified at higher speeds once ground settlement appears at the supports. Ren et al in 2010 [6] showed that the vehicle model with 16 forces turned out to be the most appropriate simplification. Moreover, the influence of a vehicle/guideway interaction was considerable when the traveling velocity reached the certain value.…”

Section: Introductionmentioning

confidence: 99%

Control of Maglev Trains Moving on Bridges During Foundation Settlements

Ju¹,

Leong²,

Ho³

2015

Proceedings of the International Conference on Computer Information Systems and Industrial Applications

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Abstract-This paper investigates the control and safety of a series of maglev trains moving on multi-span simply supported bridges with the foundation settlements. To control the dynamic response of the maglev trains, a PI (proportional-integral) controller with constant tuning gains is applied. The finite element results indicate that the influences of the rail irregularities are obvious. However, the allowable vertical settlement and the Y-deflection of the bridge, which is caused by the X-rotation can be significantly improved when the lateral electromagnetic force is enlarged.

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“…Yau [16][17][18] performed a numerical simulation for maglev vehicles under diverse situations, such as wind and horizontal ground motion. Ren et al [19] presented coupled analysis results for the maglev vehicle and guideway system using Simulink to solve the coupled problem. Yang et al [20] investigated the robust control of a class of uncertain systems via a disturbance-observer-based control approach, the control method of which was applied to a nonlinear maglev system.…”

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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Dynamic Simulation of the Maglev Vehicle/Guideway System

Cited by 47 publications

References 7 publications

Random Vibration Analysis of Coupled Three-Dimensional Maglev Vehicle-Bridge System

Random Vibration Analysis of Coupled Three-Dimensional Maglev Vehicle-Bridge System

Control of Maglev Trains Moving on Bridges During Foundation Settlements

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

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