Pantograph–catenary interaction: recent achievements and future research challenges

Bruni, Stefano; Bucca, Giuseppe; Carnevale, Marco; Collina, Andrea; Facchinetti, Alan

doi:10.1080/23248378.2017.1400156

Cited by 95 publications

(41 citation statements)

References 102 publications

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“…With the continuous improvement of the operating speed of high-speed trains, the fluctuating phenomenon of catenary caused by the sliding contact of high-speed pantograph, as shown in Fig. 1, has attracted wide attention from researchers at home and abroad [13], [14]. On the one hand, the fluctuation velocity of catenary (FVC) limits the maximum operating speed of EMU and affects the amplitude of contact force [15] and the structure stress [16].…”

Section: Figure 1 Schematic Of Pantograph-catenary Sliding Electric mentioning

confidence: 99%

Improved Study on the Fluctuation Velocity of High-Speed Railway Catenary Considering the Influence of Accessory Parts

et al. 2020

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To improve the prediction accuracy of the wave propagation velocity of high-speed railway catenary, a method for identifying the fluctuation velocity of catenary (FVC) considering the influence of the accessory parts of catenary (APC) is proposed. Based on the classical Bernoulli-Euler beam vibration model, the single Euler beam model under ideal conditions is improved considering the influence of the inertial forces exerted by accessory parts on the catenary. The calculation expression of FVC considering the influence of APC is deduced according to the theory of elastomer vibration mechanics. The key parameters α and β that affect the FVC are obtained, and the relation curves between the fluctuation velocity and the key parameters α and β are analyzed respectively. Through the fluctuation velocity test for the actual catenary, the theoretical fluctuation velocity of contact wire considering the influence of APC are compared and verified with the measured fluctuation velocity. Research results show that the relative error between the theoretical fluctuation velocity obtained from the modified fluctuation velocity expression of contact wire considering the influence of APC and the measured fluctuation velocity is less than 10%. Compared with the fluctuation velocity theoretical formula based on the string/cable and Euler beam theory, the modified expression of the fluctuation velocity of contact wire (FVCW) is more accurate in identifying the FVCW, and the recognition accuracy is increased by 3.75%, which verifies the accuracy of the recognition method and provides a more accurate theoretical basis of fluctuation velocity for designing the structural parameters of catenary.

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Section: Figure 1 Schematic Of Pantograph-catenary Sliding Electric mentioning

confidence: 99%

Improved Study on the Fluctuation Velocity of High-Speed Railway Catenary Considering the Influence of Accessory Parts

et al. 2020

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“…The wear and other mechanical damages of the PAC system were studied in [5], and the modelling and simulation approaches used to describe the pantograph and catenary interaction were reviewed. The irregularity of contact wire is a major anomaly of the HSR catenary system.…”

Section: A Pantograph Catenary System Fault Diagnosismentioning

confidence: 99%

Advances in Fault Diagnosis for High-Speed Railway: A Review

Yin

et al. 2019

2019 6th International Conference on Frontiers of Industrial Engineering (ICFIE)

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The high speed railway (HSR) is a complex system with many subsystems and components. The reliability of its core subsystems is a key consideration in ensuring the safety and operation efficiency of the whole system. As the service time increases, the degradation of these subsystems and components may lead to a range of faults and deteriorate the whole system performance. To ensure the operation safety and to develop reasonable maintenance strategies, fault detection and isolation is an indispensable functionality in high speed railway systems. In this paper, the traction power supply system, bogie system, civil infrastructure system, and control and signaling system of HSR are briefly summarized, and then different fault diagnosis methods for these subsystems are comprehensively reviewed. Finally, some future research topics are discussed.Keywords-High-speed railway (HSR); fault diagnosis; traction power supply system (TPSS); bogie system I.

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“…The smooth interaction between trains' pantographs and overhead electric contact wires is important to the reliable running of an electrified rail network. The dynamic behaviour of sliding contact between a level railway contact wire and a train pantograph has been extensively studied in recent years [2][3][4]. Here, 'level' is used to indicate that the distance from the rail track to the support locations of the contact wire is constant.…”

Section: Introductionmentioning

confidence: 99%

Effect of contact wire gradient on the dynamic performance of the catenary pantograph system

Hayes

Fletcher

Beagles

et al. 2020

Vehicle System Dynamics

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This paper considers the interaction between a train mounted pantograph and a railway overhead line, presenting results that could be used to reduce the cost of installing overhead electrification, for example, by reducing the need for expensive bridge reconstruction. Ideally, overhead wires would run at a constant height parallel to the track, however, gradients are often unavoidable due to clearance limitations requiring lower wire heights at bridges and tunnels, and higher heights above level crossings. In this study, the influence of a range of contact wire gradients on the contact force between the overhead line and pantograph has been studied using a validated finite element model. Introducing a windowing technique to identify discrete dynamic behaviours found that overhead wire gradients can be increased with minimal effect on the contact force, showing current wire gradient limits are conservative. This may open up opportunities for electrification, less disruptive than following current standards.

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Pantograph–catenary interaction: recent achievements and future research challenges

Cited by 95 publications

References 102 publications

Improved Study on the Fluctuation Velocity of High-Speed Railway Catenary Considering the Influence of Accessory Parts

Improved Study on the Fluctuation Velocity of High-Speed Railway Catenary Considering the Influence of Accessory Parts

Advances in Fault Diagnosis for High-Speed Railway: A Review

Effect of contact wire gradient on the dynamic performance of the catenary pantograph system

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