Browse > Article
http://dx.doi.org/10.3795/KSME-A.2008.32.11.924

Optimization of Specific Film Thickness for a Disc Cam Using Genetic Algorithm  

Kwon, Soon-Man (창원대학교 기계설계공학과)
Kim, Chang-Hyun (창원대학교 대학원 기계설계공학과)
Nam, Hyoung-Chul (창원대학교 대학원 기계설계공학과)
Shin, Joong-Ho (창원대학교 기계설계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.32, no.11, 2008 , pp. 924-929 More about this Journal
Abstract
The rate of wear of cam followers in a valve train system is mainly a function of contact stress between the cam and the follower, sliding velocity and hydrodynamic film thickness between the two mating surfaces. The wear or surface fatigue can be reduced by maximizing the elastohydrodynamic film thickness. In this paper, an attempt has been made to estimate the optimal specific film thickness of cam-follower system quantitatively. A general TES polynomial function with real values of exponents is developed and genetic algorithm (GA) is used as optimization techniques for maximizing the minimum specific film thickness. The optimization programs enumerate values of the exponents for synthesis of cam displacement curves. The results show that the minimum film thickness can be increased considerably, e.g. approximately 7% in this paper.
Keywords
Disc Cam; Specific Film Thickness; Valve-Train; Genetic Algorithm; TES Polynomial;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 Dowson, D., and Higginson, G. R., 1977, Elastrohydrodynamic Lubrication, SI Edition, Pergamon Press, Oxford
2 Kim, C.H., 2008, "A Study On Optimization Design of Disc Cam Using Genetic Algorithm," Master Thesis, Changwon National University, Republic of Korea
3 Thoren, T. R., et al., 1952, "Cam Design as Related to Valve Train Dynamics," SAE Quarterly Transactions, Vol. 6, No. 1, pp. 1~14
4 Shin, J. -H., Kim, J. -S. and Ha, K. -H., 1997, "A Study on the Kinetodynamic Analysis for General Disk Cam Driving Slider Mechanisms," Transactions on KSME, Series A, Vol. 21, No. 6, pp. 871~883   과학기술학회마을
5 Norton, R. L., 2001, "Cam Design and Manufacturing Handbook," Industrial Press Inc., pp. 156~176