Influence of Catenary Stitch Wire Parameters on Dynamic Performance Between Pantograph and Catenary

GUAN Jinfa; TIAN Zhijun; ZHANG Xuewu

doi:10.3969/j.issn.0258-2724.20190326

Volume 56 Issue 3

Jun. 2021

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Journal of Southwest Jiaotong University > 2021 > 56(3): 659-665.

GUAN Jinfa, TIAN Zhijun, ZHANG Xuewu. Influence of Catenary Stitch Wire Parameters on Dynamic Performance Between Pantograph and Catenary[J]. Journal of Southwest Jiaotong University, 2021, 56(3): 659-665. doi: 10.3969/j.issn.0258-2724.20190326

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GUAN Jinfa, TIAN Zhijun, ZHANG Xuewu. Influence of Catenary Stitch Wire Parameters on Dynamic Performance Between Pantograph and Catenary[J]. Journal of Southwest Jiaotong University, 2021, 56(3): 659-665. doi: 10.3969/j.issn.0258-2724.20190326

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Influence of Catenary Stitch Wire Parameters on Dynamic Performance Between Pantograph and Catenary

doi: 10.3969/j.issn.0258-2724.20190326

GUAN Jinfa^{1,2
,},
TIAN Zhijun^{1
,
,},
ZHANG Xuewu¹

Received Date: 30 Apr 2019
Rev Recd Date: 09 Sep 2019

Available Online: 24 Sep 2019

Publish Date: 15 Jun 2021

Abstract

Abstract

In order to determine the optimal design values of the catenary stitch wire at different speed levels, the dynamic simulation models of pantograph, catenary and pantograph-catenary contact have been established by finite element method, which correspond to the speed levels of 250 and 350 km/h for Chinese high-speed railways. The dynamic performance indexes of pantograph and catenary, such as the section area, statistics of contact force and the maximum uplift at supporting points have been obtained and compared, with different cross-sectional areas, tensions and length of the stitch wire under double pantographs. The results show that for the parameters of the stitch wire on O2-1 catenary, JTMH 35 mm² cross-section, (2.80 ± 0.10) kN tension and 14 m or 18 m length at 250 km/h should be chosen; for the parameters of stitch wire on Beijing−Shanghai high-speed catenary, JTMH 35 mm² cross-section, (3.50 ± 0.10) kN tension and 18m length at 350 km/h. The change of stitch wire parameters has little influence on the contact force of the anterior pantograph, but has a significant effect on that of the posterior pantograph. The maximum uplift at supporting points with the stitch wire length of 22 m is 111% at 250 km/h and 117% at 350 km/h of the stitch wire length of 18 m, which means that the change of stitch wire length has a significant impact on the maximum uplift.
- catenary,
- pantograph,
- stitch wire,
- contact force,
- uplift

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References(18)

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Influence of Catenary Stitch Wire Parameters on Dynamic Performance Between Pantograph and Catenary

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