Stress spectrum analysis and fatigue life prediction about wheel axle of high-speed power car

ZHAO Li-hua; ZHANG Kai-lin; ZHANG Hong-jun

Volume 8 Issue 5

Turn off MathJax

Article Contents

Article Navigation > Journal of Traffic and Transportation Engineering > 2008 > 8(5): 27-32

Next Previous

ZHAO Li-hua, ZHANG Kai-lin, ZHANG Hong-jun. Stress spectrum analysis and fatigue life prediction about wheel axle of high-speed power car[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 27-32.

Citation:

ZHAO Li-hua, ZHANG Kai-lin, ZHANG Hong-jun. Stress spectrum analysis and fatigue life prediction about wheel axle of high-speed power car[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 27-32.

Citation:

PDF( 387 KB)

Stress spectrum analysis and fatigue life prediction about wheel axle of high-speed power car

Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

More Information

Author Bio:
ZHA0 Li-hua (1977-), male, doctoral student, +86-28-8760066l, zhaolihual323@163.com

ZHANG Kai-lin (1967-), male, researcher, PhD, +86-28-87600661, zhangkailin@swjtu.edu.cn
Received Date: 2008-02-05
Publish Date: 2008-10-25

Abstract

Abstract

Combining the dynamic response of vehicle under the excitation of track spectrum with fatigue strength theory, the wheel axle of China Star high-speed power car was taken as example, the nonlinear dynamics model of the power car was set up, the running property of vehicle on typical railway was simulated, and the random loads acted on vehicle wheelsets were obtained.Based on the nonlinear random cyclic constitution of the axle material, the finite element model of the wheelset was established, the stress time history of key region of the wheelset under the random loads was calculated, and the stress spectrum of hazard sections of the axle was obtained by statistical analysis.Using fracture mechanics theory and accumulative damage theory, the fatigue life of the axle was predicted, and its reliability was analysed.When the reliability was 0.9, the fatigue life was 16 years.
- vehicle engineering,
- wheel axle,
- dynamics simulation,
- random load,
- stress spectrum,
- fatigue life,
- reliability

FullText(HTML)

References(15)

References

[1]	ZHAO Wen-li, LI Zhong-xue, ZHAO Bang-hua. Calculation of vehicle random response and prediction of axle fatigue life[J]. Journal of the China Rail way Society, 1998, 20(4): 120-125. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB804.020.htm
[2]	LI ANG Hong-qin, WU Ping-bo, GUAN Xue-mei. Fatigue stress calculation of freight car axle under randomloads[J]. Machinery, 2004, 31(4): 36-39. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-MECH200404014.htm
[3]	YAN Xiao-ming, LUO Shi-hui, MA Wei-hua. Numerical analysis of longitudinal dynamics of single wheelset[J]. Elec-tric Locomotives and Mass Transit Vehicles, 2005, 28(6): 22-24. (in Chinese) doi: 10.3969/j.issn.1672-1187.2005.06.008
[4]	罗世辉, 陈康, 张红军. "中华之星"高速动车动力学性能分析[R]. 成都: 西南交通大学, 2005.
[5]	XIAO Shou-ne, YANG Guang-wu, JIN Ding-chang. Dynamics analysis of multibody system based on geometric nonlinear characteristic of elastic body[J]. Machinery, 2004, 31(2): 7-9. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-MECH200402002.htm
[6]	FENG Quan-bao, SUN Shou-guang, LI U Jian-xin, et al. Dynamic model coupled between six-axles locomotive and elastic track[J]. Agricultural Equipment and Vehicle Engi-neering, 2006, 44(4): 24-28. (in Chinese) doi: 10.3969/j.issn.1673-3142.2006.04.006
[7]	徐灏. 机械设计手册[M]. 北京: 机械工业出版社, 1991.
[8]	赵少汴, 王忠保. 抗疲劳设计——方法与数据[M]. 北京: 机械工业出版社, 1997.
[9]	ZHAO Yong-xiang, YANG Bing, ZHANG Wei-hua. Probabilistic model of random-long fatigue crack propagation rates[J]. Journal of Traffic and Transportation Engineering, 2005, 5(4): 6-9. (in Chinese) http://transport.chd.edu.cn/article/id/200504002
[10]	[美]SURESHS. 材料的疲劳[M]. 王中光, 译. 北京: 国防工业出版社, 1999.
[11]	HUANG Xiao-ping, CUI Wei-cheng, SHI De-xin. Calculation of fatigue life of surface cracks at weld toe of submarine cone-cylinder shell[J]. Journal of Ship Mechanics, 2002, 6(4): 62-68. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-CBLX200204006.htm
[12]	机械工程材料性能数据手册编委会. 机械工程材料性能数据手册[M]. 北京: 机械工业出版社, 1995.
[13]	朱文予. 机械可靠性设计[M]. 上海: 上海交通大学出版社, 1992.
[14]	ZHAO Yong-xiang, HE Chao-ming, YANG Bing. Reasonable statistical model for randomfracture toughness data of LZ50 axle steel[J]. Engineering Mechanics, 2005, 22(4): 149-154. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCLX200504027.htm
[15]	SHANG Yue-jin. Reliability analysis method for fatigue crack grown life of axle[J]. Journal of Lanzhou Rail way Uni-versity: Natural Sciences, 2003, 22(5): 44-46. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-LZTX200304011.htm