Load Characteristics of Anti-rolling Torsion Bar of High-Speed Train

WANG Wengjing; ZHANG Zhipeng; LI Guangquan; SONG Chunyuan

doi:10.3969/j.issn.0258-2724.20180060

Volume 54 Issue 6

Nov. 2019

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Journal of Southwest Jiaotong University > 2019 > 54(6): 1277-1282, 1348.

WANG Wengjing, ZHANG Zhipeng, LI Guangquan, SONG Chunyuan. Load Characteristics of Anti-rolling Torsion Bar of High-Speed Train[J]. Journal of Southwest Jiaotong University, 2019, 54(6): 1277-1282, 1348. doi: 10.3969/j.issn.0258-2724.20180060

Citation:

WANG Wengjing, ZHANG Zhipeng, LI Guangquan, SONG Chunyuan. Load Characteristics of Anti-rolling Torsion Bar of High-Speed Train[J]. Journal of Southwest Jiaotong University, 2019, 54(6): 1277-1282, 1348. doi: 10.3969/j.issn.0258-2724.20180060

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Load Characteristics of Anti-rolling Torsion Bar of High-Speed Train

doi: 10.3969/j.issn.0258-2724.20180060

Received Date: 16 Mar 2018
Rev Recd Date: 02 Jul 2018

Available Online: 11 Oct 2019

Publish Date: 01 Dec 2019

Abstract

Abstract

In order to obtain the load characteristics of the anti-rolling torsion bar during the high-speed train operation, first, the change rules of the load with the train speed, curve radius, and curve superelevation were studied by combining the gyroscope and the speed signal. Second, the maximum loads of the anti-rolling torsion bar at different speed levels were obtained, and the load spectrum, trend load spectrum, and dynamic load spectrum were compiled to calculate the damage ratio of the trend load to dynamic load in the whole test load. The results show that the dynamic load amplitude of the anti-rolling torsion bar increases with the increasing of the train running speed under straight running condition. When the speed increases from 250 km/h to 350 km/h, the maximum load amplitude increases by 30%. At a given surplus superelevation condition, the maximum trend load amplitude of the anti-roll torsion bar decreases with the decreasing of the curve radius, which is from 6.61 kN to 3.54 kN at the operation speed of 240 km/h. For the same curve radius, the trend load amplitude increases with the increasing of the curve superelevation and the maximum load amplitude increases from 3.36 kN to 5.80 kN at the operation speed of 240 km/h.
- anti-rolling torsion bar,
- trend load,
- dynamic load,
- load spectrum,
- damage

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References

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