Computer numerical simulation study of sliding friction temperature of pantograph carbon skateboard

Ma, Yuanyuan; Na, Yuting; Yang, Longpeng; Zheng, Yibo

doi:10.1109/icdsca53499.2021.9650273

Cited by 4 publications

(3 citation statements)

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“…Fig. 15 Three-axis vibration of the PCU Sliding contacts with current flow generate three types of heat: mechanical friction heat; current flow joule heat; and electric arc heat [39], [40]. A FLIR thermal Camera was used to take images of the temperature of the conduction rings during operation.…”

Section: B Results and Discussion 1) Dynamic Conductive Power Transfermentioning

confidence: 99%

“…In railway applications, COMSOL Multiphysics simulation is used for finite element assessment of the heat flux between the third rail and collector shoe as well as between the overhead catenary and the pantograph's plate [39], [40]. However, the generated heat modelling is not considered in this paper for several reasons: 1) The conductor rings are made of aluminium, whereas the third rail is composed of aluminium rails with stainless steel caps which have different conductivities and friction coefficients; 2) The power disc's conductor rings are rotational with different sizes, whereas the third rail is linear; 3) The conductor rings of the power disc are exposed to two contact forces of the power supply and PCU's carbon brushes, which may double the heat flux.…”

Section: B Results and Discussion 1) Dynamic Conductive Power Transfermentioning

confidence: 99%

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Wheel Hub Active Power Collection Unit for Dynamic Conductive Road Charging

Ali

Pickert

Alharbi

et al. 2023

IEEE Trans. Transp. Electrific.

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Travelling hundreds of miles with an electric vehicle (EV) requires a large battery combined with available static fast chargers along the route. Dynamic conductive road charging is seen as an alternative as it allows EVs with smaller battery sizes to travel over longer distances and eliminates intermittent stops for charging. To transfer power during driving, power tracks must be aligned along the road and built either above, beside, or on the road. Therefore, the available EVs' power collection units (PCUs) are either mounted on the vehicle's roof or attached to the chassis. For mainstream applications changing the design of the roof structure and chassis of future EVs would involve enormous development costs. This paper presents an alternative for dynamic conductive road charging where the PCU is embedded in the wheel of an EV. Positioning the PCU in the wheel does not require any substantial change to the integrity of the car and the PCU can easily be removed or added, similar to changing tires. A stationary-hub wheel is used, which offsets the wheel drive motor to an eccentric position, resulting in a static hub that accommodates the PCU. The paper describes the design of the PCU and shows simulation results to support the design. An experimental platform was built to validate the concept. The design of the proposed PCU was based on an EV travelling at a high-speed (200km/h) on a motorway.

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Section: B Results and Discussion 1) Dynamic Conductive Power Transfermentioning

confidence: 99%

Section: B Results and Discussion 1) Dynamic Conductive Power Transfermentioning

confidence: 99%

Wheel Hub Active Power Collection Unit for Dynamic Conductive Road Charging

Ali

Pickert

Alharbi

et al. 2023

IEEE Trans. Transp. Electrific.

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show abstract

“…Despite significant progress in research on the PAC system in recent years [3], challenges persist due to the system's complexity and the diversity of thermal-mechanical effects. Traditional studies have mainly focused on either thermal or mechanical issues separately, with comprehensive analysis of thermal-mechanical coupling effects being relatively scarce [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study on thermo-mechanical coupling model in pantograph-catenary system of rail vehicle

Jiang,

Zhou,

Cheng

et al. 2024

J. Phys.: Conf. Ser.

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The coupling of the pantograph-catenary system represents a complex multi-disciplinary challenge, intertwining multi-fields and intricate interactions. Based on thermodynamic theory, this paper establishes a thermal-force coupling model for the pantograph carbon slider of high-speed trains, taking into account multiple physical field factors such as heat, dynamics, and electricity. Utilizing a pantograph-catenary contact test bench, we validate a full-scale thermo-mechanical coupling model for the pantograph carbon slider. Thereafter, we assess the coupled temperature and stress outcomes of the carbon slider. The results indicate that dynamic variations in the surface temperature of the carbon slider could lead to the formation of localized high-temperature zones. The phenomena of thermal expansion and contraction, combined with heat accumulation, increase the risk of thermal stress cracks and carbon strip fractures. Longitudinal reverse heat warping deformation occurs in the carbon strip. The airway of the aluminum bracket experiences the highest coupled stress and requires enhanced load-bearing capacity.

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High Temperature Trailing Phenomenon of Sliding Electrical Contact in Pantograph-catenary System

Wang,

Zhen,

2024

2024 IEEE 7th International Electrical and Energy Conference (CIEEC)

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Computer numerical simulation study of sliding friction temperature of pantograph carbon skateboard

Cited by 4 publications

References 0 publications

Wheel Hub Active Power Collection Unit for Dynamic Conductive Road Charging

Wheel Hub Active Power Collection Unit for Dynamic Conductive Road Charging

Study on thermo-mechanical coupling model in pantograph-catenary system of rail vehicle

High Temperature Trailing Phenomenon of Sliding Electrical Contact in Pantograph-catenary System

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