The Research on Fatigue of Crankshaft with the Method of Explicit Dynamic

Abstract:

The crankshaft fillet rolling process is one of the commonly adopted methods in engineering to improve fatigue life of the crankshaft. The crankshaft fillet rolling process was simulated based on the explicit dynamic calculation in this paper. After the data acquisition program was compiled, the distribution of the crankshaft surface stress could be obtained. Coupling calculation between the operating stress at different bending moments and the rolling residual stress was based on the Smith-Watson-Topper (SWT) modle. After the simulation on the crankshaft fillet rolling process was carried out, which was based on optimization rolling parameters, the crankshaft fatigue strength was improved by 8.6%.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 1839-1842
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.1839
• Online since: November 2012
• Authors: Chen Hai Guo, Yong Zhang, Xiao Hui Cao
• Keywords: Crankshaft, Fatigue Strength, Fillet Rolling, Residual Stress

References

[1] Gu Lun: Research and DeveloPment of DeeP Rolling Machine for Engine Crankshaft.(MS.,Jilin university,China 2010),p.3.(in Chinese)

[2] Liu Rongchang,Ma Shuying,et a.l Theoretical Model and Loading Analysis of Crankshaft Fillet Rolling[R]. ICIII 2008,(Taiwan,2008) p.440.

DOI: 10.1109/iciii.2008.104

[3] Chien WY, Pan J, Close D, Ho S. Crankshaft fatigue crack propagation analysis with consideration of residual stresses. International Journal of fatigue 27 (2005) p.1.

DOI: 10.1016/j.ijfatigue.2004.06.009

[4] Schaal R, Kaiser B, Pyttel B, et a.l. Computational and Experimental Methods, 7 (2003) p.205.