Wear characteristics of contact area among transmission conductor strands of electrified railway

ZHAO Mei-yun; LIU Zheng-lin; ZHAO Xin-ze; GAO Wei; WANG Qi-feng

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Article Navigation > Journal of Traffic and Transportation Engineering > 2013 > 13(5): 121-126

ZHAO Mei-yun, LIU Zheng-lin, ZHAO Xin-ze, GAO Wei, WANG Qi-feng. Wear characteristics of contact area among transmission conductor strands of electrified railway[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 121-126.

Citation:

ZHAO Mei-yun, LIU Zheng-lin, ZHAO Xin-ze, GAO Wei, WANG Qi-feng. Wear characteristics of contact area among transmission conductor strands of electrified railway[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 121-126.

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Wear characteristics of contact area among transmission conductor strands of electrified railway

1.
School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
2.
School of Mechanical and Material Engineering, China Three Gorges University, Yichang 443002, Hubei, China
3.
HydroChina Guiyang Engineering Corporation, Guiyang 550081, Guizhou, China

More Information

Author Bio:
ZHAO Mei-yun(1977-), female, associate professor, doctoral student, +86-717-6397556, zhaomeiyun@ctgu.edu.cn
Received Date: 2013-05-18
Publish Date: 2013-10-25

Abstract

Abstract

Taking LGJ150/25 aluminum cable steel reinforced (ACSR) wire as tested wire, aeolian vibrations under dry and acidic conditions were simulated on a self-made test rig.The surface morphology of wear scar of tested wire and its elements were observed by using scanning electron microscope (SEM) and energy dispersive spectrometry (EDS).A finite model of inside and outside wire contact areas was built under the same conditions.The analysis results of the finite model and the surface morphology of wear scar were compared.Comparison result indicates that both the wear scar shapes and the stress distributions of contact area among inner aluminum strands are oval-shaped under two conditions.Oval-shaped major axis and strand axis have a certain angle.The contact stress in the central contact area is significantly higher than other areas.The plastic deformation and a large number of wear debris occur on the surface of wear area because of high stress.The compression of mutated stress from the center area, especial transition area, causes the elastic deformation at the edge of wear area and the phenomena of plastic flow and stacking of surface tissue.The transition area between the center and the edge parts has stress concentration, where fatigue cracks are resulted from the mutation of normal stress and shear stress.
- electrified railway,
- ACSR,
- wear characteristic,
- finite element,
- surface morphology,
- contact stress

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References(16)

References

[1]	HOU Wei-liang, HE Huan, SUN Xu-long. Study on power supply scheme of contemporary electric railway[J]. Distribution and Utilization, 2012, 29 (2): 28-30, 58. (in Chinese). doi: 10.3969/j.issn.1006-6357.2012.02.006
[2]	NA Guang-yu, WANG Jun. The power supply system of electrified railway and its impact on the power system[J]. Northeast Electric Power Technology, 2011 (11): 13-18. (in Chinese). doi: 10.3969/j.issn.1004-7913.2011.11.004
[3]	图 6两种条件下接触区应力分布曲线Fig. 6 Stress distribution curves of contact area under two kinds of conditions WU Gang, ZHAO Xin-ze, ZHAO Chun-hua. Research progresses on friction and wear of overhead electrical conductors[J]. Lubrication Engineering, 2008, 33 (10): 103-106. (in Chinese). doi: 10.3969/j.issn.0254-0150.2008.10.032
[4]	WANG Xu, CHEN Guo-hong, WANG Jia-qing, et al. Fretting fatigue fractographies of aluminum conductor steel reinforced overhead conductor[J]. The Chinese Journal of Nonferrous Metals, 2012, 22 (1): 194-200. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZYXZ201201025.htm
[5]	MEI Li-jia. Vibration-proof and hazard of conductor vibration for overhead line[J]. Jiangxi Electric Power, 2005, 29 (6): 30-31, 34. (in Chinese). doi: 10.3969/j.issn.1006-348X.2005.06.009
[6]	AZEVEDO C R F, CESCON T. Failure analysis of aluminum cable steel reinforced (ACSR) conductor of the transmission line crossing the Parana River[J]. Engineering Failure Analysis, 2002, 9 (6): 645-664. doi: 10.1016/S1350-6307(02)00021-3
[7]	AZEVEDO C R F, HENRIQUES A M D, FILHO A R P, et al. Fretting fatigue in overhead conductors: rig design and failure analysis of a grosbeak aluminium cable steel reinforced conductor[J]. Engineering Failure Analysis, 2009, 16 (1): 136-151. doi: 10.1016/j.engfailanal.2008.01.003
[8]	CHEN Jian, HUANG Zhi-jie, LI Lu-ping, et al. Microanalysis on fretting wear surface of overhead electrical conductors[J]. Lubrication Engineering, 2004, 29 (6): 24-26. (in Chinese). doi: 10.3969/j.issn.0254-0150.2004.06.009
[9]	CHEN Guo-hong, WANG Jia-qing, ZHANG Jian-kun, et al. Fretting wear behavior of overhead aluminum conductor steel reinforced conductor[J]. Lubrication Engineering, 2010, 35 (5): 55-59, 84. (in Chinese). doi: 10.3969/j.issn.0254-0150.2010.05.012
[10]	LI Bo, LI Jie, CHEN Hao-bin, et al. Research on fretting wear of high-voltage transmission conductor[J]. Lubrication Engineering, 2009, 34 (2): 71-73, 81. (in Chinese). doi: 10.3969/j.issn.0254-0150.2009.02.022
[11]	ZHAO Xin-ze, WANG Qi-feng, ZHOU Quan, et al. Fretting wear behavior of aluminum cable steel reinforced[J]. Lubrication Engineering, 2013, 38 (3): 32-35, 47. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-RHMF201303011.htm
[12]	ZHAO Xin-ze, GAO Wei, ZHAO Mei-yun, et al. Wear characteristics of aluminum cable steel reinforced (ACSR) under dry and acidic conditions[J]. Tribology, 2011, 31 (6): 616-621. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-MCXX201106018.htm
[13]	ZHANG De-kun, GE Shi-rong. Research on the contact mechanisms in the process of fretting wear between steel wires[J]. Journal of Mechanical Strength, 2007, 29 (1): 148-151. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JXQD200701029.htm
[14]	CRUZADO A, HARTELT M, WASCHE R. Fretting wear of thin steel wires part 1: influence of contact pressure[J]. Wear, 2010, 268 (11/12): 1409-1416.
[15]	SHEN Yan, ZHANG De-kun, WANG Da-gang, et al. Effect of contact load on the fretting wear behavior of steel wire[J]. Tribology, 2010, 30 (4): 404-408. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-MCXX201004015.htm
[16]	TSAI C T, MALL S. Elasto-plastic finite element analysis of fretting stresses in pre-stressed strip in contact with cylindrical pad[J]. Finite Elements in Analysis and Design, 2000, 36 (2): 171-187.