Modeling and Experimental Evaluation of Asymmetric Pantograph Dynamics

Eppinger, Steven D.; O’Connor, D. N.; Seering, Warren P.; Wormley, D. N.

doi:10.1115/1.3152667

Cited by 34 publications

(16 citation statements)

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“…2. The head mass is represented by the upper mass, W h , while lower mass, W f , represents the inertia of frame linkages [20]. The shoe spring constant, K s , describes the flexure of the contacting carbons and their supporting structures.…”

Section: A Modeling Of Pantographmentioning

confidence: 99%

Design and study of active controllers for pantograph-catenary system

Garg

Mahajan

Kumar³

et al. 2014

2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific)

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Pantograph-catenary contact (interface) is the most crucial link to supply electrical power to loco drive. At high train speed, the loss of contact may occur due to the vibrations between the pantograph and catenary. In this paper, the fuzzy logic control is applied to minimize the vibrations in the force using different membership functions using MATLAB-Simulink software and the response is compared with PID controllers.

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Section: A Modeling Of Pantographmentioning

confidence: 99%

Design and study of active controllers for pantograph-catenary system

Garg

Mahajan

Kumar³

et al. 2014

2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific)

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“…The first model considers the bending stiffness and tensile stiffness of both the contact wire and support wire, as well as the elastic of the dropper. This model studies the displacements of the contact wire and support wire with Fourier decomposition, and takes the coefficients as generalized variables, using the Lagrange method to establish the motion differential equation [31][32][33]. The second model considers the contact wire and support wire as the beam, and deduce the partial differential equation of motion directly [34,35].…”

Section: Vast System Dynamics For High-speed Trainmentioning

confidence: 99%

A review of vehicle system dynamics in the development of high-speed trains in China

Zhang

Zeng

2013

Int. J. Dynam. Control

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The flourishing railway industry in China comes as not only a surprise for the world but also a promoter for the development of high speed railway across the globe. In this paper, a retrospect of China's high speed railway is introduced, including its railway network plans, construction progress and operation status. A synopsis of the progress made on high speed trains is also presented from their primal stage of technology acquisition to the latter stages of innovative research and development as well as the current types of bullet trains and their uses. The breakthrough of the 500 km/h test train developed by China is also highlighted in this letter inclusive of its design, technical indexes and fundamental testing functionalities. For China to rapidly but yet successfully develop its high speed railway industry and bullet trains, fundamental research will play as much an important role as technical innovation. Sound research on the dynamics is crucial toward the high quality performance and safety operation of high speed trains which include key factors such as vehicle design, operation and maintenance solutions, integration of the track network, and the effects of coupling systems on the dynamics performance of the train system such as airflow, pantograph-catenary and power source-current collection systems. To tackle the problems associated with the increasing of train speed, we have developed a corresponding dynamics coupled system of the track-vehicle-pantographcatenary-airflow system based on vehicle system dynamics (VSD). Comparing to traditional VSD research, in addition to considering the coupled system dynamics between vehicle and track, wheel and rail, fluid and solid, as well as vehicle and vehicle, the newly developed VSD also vastly increases the degrees of freedom in its calculations, enlarging the traditional VSD to a vast system dynamics (also VSD), giving VSD a new meaning. This paper elaborates the modeling and coupling relations of the track-vehicle-pantographcatenary-airflow coupled system dynamics. Focusing on high speed trains, the train parameters, track status, and effects of airflow conditions on train dynamics performance was investigated as well as the safety precautions due to limitations from track irregularity and crosswinds.

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“…The model of the pantograph is replaced with an elastic frame. Usually it is modeled by an equivalent multiple rigid bodies system [1,2] . The pantograph system couples with the cantenary system by means of the normal pressure between them.…”

Section: Engineering Of Communications and Transportationmentioning

confidence: 99%

Dynamics of high speed wheel/rail system and its modelling

Zhang

Jin

2007

CHINESE SCI BULL

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With the fast increasing of train speed the interactions among the train, the track, and the power catenary system become very strong. Such interactions are also strongly coupled with the action of high speed airflow due to the high speed running. Hence, the existing research methods and numerical algorithms of railway vehicle/track systems are not fully available for characterizing the transient dynamic and long-term behaviors of train/track at higher speed. The present paper reviews the existing studies on coupling dynamics of railway vehicle/track, and clarifies their advantages and disadvantages and then puts forward an innovation stratagem for high speed railway based on rolling contact of wheel/rail systems. In the innovation stratagem, a comprehensive dynamic model of wheels/rails systems is developed to simultaneously consider the track system, the train, the rolling contact of wheel/rail, the catenary/pantograph system, and the high speed airflow with the train. The motion equations of the subsystems and their coupling boundaries are given and discussed. For the reliability and safety of the high speed train in service, the long-term behavior of the structures of the train and the track is considered in the comprehensive model. Moreover, a generalized failure model, considering the structures and the materials and working in the comprehensive dynamic model of wheels/rails system, as well as the simulation system of structure failure of the high speed train/track is established. Consequently, the present studies on the dynamics of the coupled vehicle/track will be further and largely extended.

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Modeling and Experimental Evaluation of Asymmetric Pantograph Dynamics

Cited by 34 publications

References 0 publications

Design and study of active controllers for pantograph-catenary system

Design and study of active controllers for pantograph-catenary system

A review of vehicle system dynamics in the development of high-speed trains in China

Dynamics of high speed wheel/rail system and its modelling

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