Dynamic analysis of a pantograph–catenary system using absolute nodal coordinates

Seo, Jong-Hwi; Seok-Won, Kim; Jung, Il-Ho; Park, Tae-Won; Mok, Jin-Yong; Kim, Young-Guk; Jaturapitakkul, Chai

doi:10.1080/00423110500373721

Cited by 93 publications

(53 citation statements)

References 12 publications

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“…In order to consider the large deformation further, Park and Kim [12,13,46,47] utilize absolute nodal coordinate formulation (ANCF) beam to model the large deformation of contact/messenger wire. ANCF is firstly proposed by Shabana [48], which can effectively deal with the large deformation of the beam, shell and cable elements.…”

Section: Finite Element Modelmentioning

confidence: 99%

Advances of research on high-speed railway catenary

Liu

Song

et al. 2017

J. Mod. Transport.

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The interaction between the catenary and pantograph is one of the most crucial factors that determine the train operation in high-speed railway. The bad state of catenary is able to directly influence the power supply safety of traction power system. In this paper, four aspects on the catenary research of high-speed railway are reviewed in detail, namely the solution methods for catenary equilibrium state, the dynamic modeling methods of catenary, non-contact detection methods of catenary, and the static and dynamic evaluation methods of catenary. In addition, their recent advances are described. For the low solution accuracy of the initial equilibrium state of catenary, the structure finding method with multi-objective constraint and nonlinear finite element procedure are introduced to solve the problem. For the catenary's dynamic modeling, considering the influence of environmental wind on the catenary, environmental wind simulations and wind tunnel tests are used to obtain the aerodynamic coefficients and build the wind field along the catenary for analysis of its wind vibration characteristics. In order to improve the detection accuracy of non-contact detection for the catenary, the deep learning theory and real-time detection algorithms should be adopted in the future. In view of the lack of dynamic assessment method for the catenary, the modern spectrum evaluation, timefrequency analysis, big data technology and their combinations will be the important means for future catenary evaluation.Keywords High-speed railway Á Modeling of catenary Á Simulation of catenary Á Detection of catenary Á Evaluation of catenary

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Section: Finite Element Modelmentioning

confidence: 99%

Advances of research on high-speed railway catenary

Liu

Song

et al. 2017

J. Mod. Transport.

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“…These methods include point-mass [1], finite segment [2] and finite element methods [3]. Seo et al [4] have noted that for cables undergoing large deformations the behavior is highly non-linear. The non-linear Absolute Nodal Coordinate Formulation (ANCF) has been shown to be accurate for modeling thin, flexible cables undergoing large deformations [5].…”

Section: Introductionmentioning

confidence: 99%

“…It is thus well suited for cable contact problems, wherein the cable undergoes large deformations along the contact arc and mainly rigid body displacements elsewhere. While research extending the ANCF method to contact problems is limited, it has been applied to systems such as belt-drives [6], caternary-pantograph systems [4], as well as cable-pulley interactions [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Cable-Pulley Interaction with Dynamic Wrap Angle Using the Absolute Nodal Coordinate Formulation

Westin¹,

Irani²

2017

Proceedings of the 4th International Conference of Control, Dynamic Systems, and Robotics (CDSR'17)

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-This paper presents a finite element model of a flexible cable that has been constructed to accurately model dynamic wrap angles around a static pulley. The study considers a system with a rope running over a pulley and a suspended load on one end moving in a circular arc. The model utilizes the Absolute Nodal Coordinate Formulation to define the generalized coordinates, chosen for its accurate definitions of large non-linear cable deformations. The interaction of the cable with the surface of a pulley is modeled using a contact penalty formulation. An experimental study is performed to analyze the performance of the model outputs: cable tension and wrap angle. During the testing the wrap angle had peak-to-peak oscillations of up to 122 degrees. The numerical simulation shows reasonable agreement with the experimental measurements.

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“…With these tools designers can analyze, for example, the effects of the catenary geometry or the properties of the cables on the contact force between pantograph and catenary. The number of codes developed in recent years [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] is an example of just how important simulation is becoming in this field. A common feature of most of the codes is that the cables are modeled using the finite element method, mainly using prestressed beam formulations, like the Euler-Bernoulli or Timoshenko beam theories.…”

Section: Introductionmentioning

confidence: 99%

A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary

Tur¹,

Garcia²,

Baeza³

et al. 2014

Engineering Structures

107

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ElsevierTur Valiente, M.; García, E.; Baeza González, LM.; Fuenmayor Fernández, FJ. (2014) AbstractIn this paper we propose a method of finding the initial equilibrium configuration of cable structures discretized by finite elements applied to the shape-finding of the railway overhead system. Absolute nodal coordinate formulation finite elements, which take into account axial and bending deformation, are used for the contact and messenger wires. The other parts of the overhead system are discretized with non-linear bars or equivalent springs. The proposed method considers the constraints introduced during the assembly of the catenary, such as the position of droppers, cable tension, height of the contact wire, etc. The main result of the shape-finding problem is the computation of the length of droppers. A comparison of the results obtained for reference catenaries in the bibliography is also included.

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Dynamic analysis of a pantograph–catenary system using absolute nodal coordinates

Cited by 93 publications

References 12 publications

Advances of research on high-speed railway catenary

Advances of research on high-speed railway catenary

Cable-Pulley Interaction with Dynamic Wrap Angle Using the Absolute Nodal Coordinate Formulation

A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary

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