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Optimal Shape Design of Hub Edge Contact Profile in a Press-Fitted Shaft
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 Title & Authors
Optimal Shape Design of Hub Edge Contact Profile in a Press-Fitted Shaft
Choi, Ha-Young; Lee, Dong-Hyung; Kwon, Seok-Jin; Seo, Jeong-Won;
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The objectives of this paper are to develop a finite element analysis model to analyze press-fitted and bending load conditions in a press-fitted assembly, and propose a hub shape optimization method to minimize contact pressure near the shaft contact edge. Numerical asymmetric-axisymmetric finite element models have been developed to predict contact stress on press-fitted shafts. The global optimization method, genetic algorithm, local optimization method, and sequential quadratic programming were applied to a press-fitted assembly to optimize the hub contact edge geometry. The results showed that the maximum contact pressure with the optimized hub shape decreased more than 60 % compared to conventional hubs and the maximum contact stress affecting fatigue life was reduced about 47 %. Hub shape optimization can be useful to increase the load capability of press fits in terms of wear and fatigue behavior.
Press-Fitted Shaft;Contact pressure;Stress concentration;Optimization;
 Cited by
Hirakawa, K., Toyama, K., and Kubota, M., "The Analysis and Prevention of Failure in Railway Axles," International Journal of Fatigue, Vol. 20, No. 2, pp. 135-144, 1998. crossref(new window)

Peterson, R. and Wahl, A., "Fatigue of Shafts at Fitted Members with a Related Photoelastic Analysis," Journal of Applied Mechanics, Vol. 2, No. 1, pp. 1-11, 1935.

Nishioka, K. and Komatsu, H., "Researches on Increasing the Fatigue Strength of Press-Fitted Shaft Assembly," Bull JSME, Vol. 10, No. 42, pp. 880-889, 1967. crossref(new window)

Kubota, M., Kataoka, S., and Kondo, Y., "Effect of Stress Relief Groove on Fretting Fatigue Strength and Index for the Selection of Optimal Groove Shape," International Journal of Fatigue, Vol. 31, No. 3, pp. 439-446, 2009. crossref(new window)

Lee, D. H., Kwon, S. J., Seo, J. W., Kwon, S. T., and You, W. H., "Evaluation of Fatigue Crack Initiation Life according to the Hub Contact Shape in a Pressfitted Shaft," Proc. of KSPE Spring Conference, Vol. 20, pp. 1467-1468, 2010.

Biron, G., Vadean, A., and Tudose, L., "Optimal Design of Interference Fit Assemblies Subjected to Fatigue Loads," Structural and Multidisciplinary Optimization, Vol. 47, No. 3, pp. 441-451, 2013. crossref(new window)

Dassault Systèmes Simulia, "Abaqus Analysis User's Manual 6.10," Providence, RI, USA, 2010.

Ugural, A. C. and Fenster, S. K., "Advanced Strength and Applied Elasticity," Prentice Hall, 4th Ed., 1995.

Hong, G.-J., Jeon, G.-G., Jo, Y.-S., Choe, D.-H., and Lee, S.-J., "A Study on the Construction of Response Surface for Design Optimization," Transactions of the Korean Society of Mechanical Engineers A, Vol. 24, No. 6, pp. 1408-1418, 2000.

Holland, J. H., "Adaptation in Natural and Artificial Systems," Ann Arbor, University of Michigan Press, pp. 89-120, 1975.

Fletcher, R., "Practical Methods of Optimization," John Wiley and Sons, 2nd Ed., pp. 277-324, 1987.

Simpson, T. W., Lin, D. K., and Chen, W., "Sampling Strategies for Computer Experiments: Design and Analysis," International Journal of Reliability and Applications, Vol. 2, No. 3, pp. 209-240, 2001.

Fritsch, F. N. and Carlson, R. E., "Monotone Piecewise Cubic Interpolation," SIAM Journal on Numerical Analysis, Vol. 17, No. 2, pp. 238-246, 1980. crossref(new window)