Comparison of dynamic high-speed curving properties for wheel profiles

ZHANG Jian; SUN Li-ping

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ZHANG Jian, SUN Li-ping. Comparison of dynamic high-speed curving properties for wheel profiles[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 6-11.

Citation:

ZHANG Jian, SUN Li-ping. Comparison of dynamic high-speed curving properties for wheel profiles[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 6-11.

ZHANG Jian, SUN Li-ping. Comparison of dynamic high-speed curving properties for wheel profiles[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 6-11.

Citation:

ZHANG Jian, SUN Li-ping. Comparison of dynamic high-speed curving properties for wheel profiles[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 6-11.

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Comparison of dynamic high-speed curving properties for wheel profiles

ZHANG Jian^{1, 2
,},
SUN Li-ping²

1.
Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
2.
School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, Liaoning, China

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Author Bio:
Zhang Jian(1968-), male, associate professor, doctoral student of engineering, + 86-411-84106938, zhangjian@djtu.edu.cn
Received Date: 2007-06-02
Publish Date: 2007-12-25

Abstract

Abstract

In order to effectively choose wheel profiles, the high-speed curving characteristics of wheelset were obtained by vehicle-track coupling dynamics simulation, wheel/rail contact geometry property and creeping ratio were calculated with wheelset curving dynamic parameters, wheel/rail non-Hertzian rolling contact was analyzed by using Contact program, and the high-speed curving matching characteristics of LMa, S1002 and XP55 wheel profiles were studied.Analysis result shows that the curves of wheelset dynamic parameters for LMa and XP55 profiles are smooth, S1002 profile exhibits large amplitude oscillation, and hunting occurs; wheel/rail contact point of S1002 profile jumps 11 mm while wheelset laterally displaces from 3.0 to 3.5 mm, just in the transitional arc of rail profile from R300 to R80 mm; the contact patch of S1002 profile generally slides, the contact stress of LMa profile is lowest, and the contact stress of XP55 profile is highest.So S1002 profile incompatibly matches Chinese 60 kg·m^-1 rail, the matching effect of XP55 profile is better, and the matching effect of LMa profile is best.
- vehicle engineering,
- wheel/rail profiles,
- rolling contact,
- wheel/rail relationship,
- vehicle/rail dynamics

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References(10)

References

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