Influences of Ice Load and Air Damping on Dynamic Current Collection of Pantograph-Iced Catenary

DUAN Fuchuan; LIU Zhigang; SONG Yang; ZHANG Jing

doi:10.3969/j.issn.0258-2724.2016.01.025

Volume 29 Issue 1

Jan. 2016

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Journal of Southwest Jiaotong University > 2016 > 29(1): 177-187.

DUAN Fuchuan, LIU Zhigang, SONG Yang, ZHANG Jing. Influences of Ice Load and Air Damping on Dynamic Current Collection of Pantograph-Iced Catenary[J]. Journal of Southwest Jiaotong University, 2016, 29(1): 177-187. doi: 10.3969/j.issn.0258-2724.2016.01.025

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DUAN Fuchuan, LIU Zhigang, SONG Yang, ZHANG Jing. Influences of Ice Load and Air Damping on Dynamic Current Collection of Pantograph-Iced Catenary[J]. Journal of Southwest Jiaotong University, 2016, 29(1): 177-187. doi: 10.3969/j.issn.0258-2724.2016.01.025

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Influences of Ice Load and Air Damping on Dynamic Current Collection of Pantograph-Iced Catenary

doi: 10.3969/j.issn.0258-2724.2016.01.025

Received Date: 01 Jul 2015
Publish Date: 25 Jan 2016

Abstract

Abstract

In order to study the influences of the icing and environmental wind on pantograph-catenary current collection, based on modal analysis method, the differential equations of motion for icing catenary were deduced considering the influence of icing on the catenary mass and stiffness. Then pantograph-catenary equation of motion is adjusted by introducing the term of air damping caused by static wind load. Then, utilizing a lumped-mass pantograph model, the contact force with different ice thicknesses, wind speeds and angles of attack is calculated. The results show that without wind, the increase of ice thickness leads to a poor contact performance of pantograph-catenary system. When there is static wind load, the wind direction is the main factors affecting the contact performance of the pantograph-catenary system, because the aerodynamic damping of catenary is changed by icing. While the more closely the wind flows to the horizon direction, the less it affects the contact performance of pantograph-catenary system.
- pantograph-catenarycurrentcollection,
- icing,
- static wind load,
- air damping,
- angle of attack

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References

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Influences of Ice Load and Air Damping on Dynamic Current Collection of Pantograph-Iced Catenary

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