Mid-life scuffing failure in automotive cam-follower contacts

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Volumn 212, Issue 4, 1998, Pages 259-269

  Bell, J C ^a   Willemse, P J ^a  

^a SHELL RESEARCH AND TECHNOLOGY CENTRE   (Netherlands)

Author keywords

Cam follower contact; Plastic deformation; Rough surface contact mechanics; Scuffing

Indexed keywords

FAILURE (MECHANICAL); MATHEMATICAL MODELS; MECHANICAL TESTING; PLASTIC DEFORMATION; STATISTICAL METHODS; SURFACE ROUGHNESS; VALVES (MECHANICAL); WEAR OF MATERIALS;

CAM FOLLOWER CONTACT; ELASTIC CONTACT; ELASTIC SHAKEDOWN LIMIT; MAXIMUM ASPERITY CONTACT PRESSURE; ROUGH SURFACE CONTACT MECHANICS; SCUFFING; WEAR TEST;

TRIBOLOGY;

SCUFFING;

EID: 0032405680     PISSN: 13506501     EISSN: None     Source Type: Journal    
DOI: 10.1243/1350650981542074     Document Type: Article

References (20)

1. Kelly, D. A. and Barnes, C. G. Effects of speed on scuffing in mixed lubrication. Proc. Instn Mech. Engrs, Part J, Journal of Engineering Tribology, 1994, 208(J4), 269-279.
2. Bell, J. C., Dyson, A. and Hadley, J. W. The effects of rolling and sliding speeds on the scuffing of lubricated steel discs. ASLE Trans., April 1974, 18(1), 62-73.
3. Roper, G. W. and Bell, J. C. Review and evaluation of lubricated wear in simulated valve train contact conditions. SAG paper 952473, 1995.
4. Coy, R. C. and Dyson, A. A rig to simulate the kinematics of the contact between cam and finger follower. Lubric. Engng, 1983, 39(3), 143-152.
5. Batchelor, A. W. and Stachowiak, G. W. Model of scuffing based on the vulnerability of an elastohydrodynamic oil film to chemical degradation catalysed by the contacting surfaces. Tribology Lett., 1995, 4(4), 349-365.
6. Bell, J. C. and Richards, M. N. Some effects of hardness and microstructure on the lubricated wear of steels. In Proceedings of the Fourteenth Leeds-Lyon Symposium on Tribology (Eds D. Dowson et al.), Lyon, 1988, pp. 343-353 (Butterworth, London).
7. Samuels, B. and Richards, M. N. The transition between mild and severe wear for boundary-lubricated steels. Trans. ASME, J. Tribology, 1991, 113, 65-72.
8. Johnson, K. L. Contact Mechanics, 1985 (Cambridge University Press, Cambridge).
9. Kapoor, A., Williams, J. A. and Johnson, K. L. The steady state sliding of rough surfaces. Wear, 1994, 175, 81-92.
10. Webster, M. N. and Sayles, R. S. A numerical model for the elastic frictionless contact of real rough surfaces. Trans. ASME, J. Tribology, 1986, 108(3), 314-320.
11. Bell, J. C. Gasoline engine valve train design evolution and the antiwear requirements of motor oils. Proc. Instn Mech. Engrs, Part J, Journal of Engineering Tribology, 1998, 212 (J4), 243-257.
12. Bell, J. C. Engine lubricants. In Engine Tribology (Ed. C. M. Taylor), 1993, Ch. 12 (Elsevier Science, Amsterdam).
13. Bell, J. C. Reproducing the kinematic conditions for automotive valve train wear in a laboratory test machine. Proc. Instn Mech. Engrs, Part J, Journal of Engineering Tribology, 1996, 210(J2), 135-144.
14. Childs, T. H. C. The sliding wear mechanisms of metals, mainly steels. Tribology Int., 1980, 13(6), 285-293.
15. Johnson, K. L. and Shercliff, H. R. Shakedown of two-dimensional asperities in sliding contact. Int. J. J. Mech. Sci., 1992, 34(5), 375-394.
16. Evans, H. P. and Snidle, R. W. A model for elastohydrodynamic film failure in contacts between rough surfaces having transverse finish. Trans. ASME, J. Tribology, 1996, 118(4), 847-857.
17. Williamson, B. P. and Perkins, H. N. The effects of engine oil rheology on the oil film thickness between a cam and rocker follower. SAE paper 922346, 1992.
18. Williamson, B. P. and Bell, J. C. The effects of engine oil rheology on the oil film thickness and wear between a cam and rocker follower. SAE paper 962031, 1996.
19. Kapoor, A. and Cocks, A. C. Wear through the plastic interaction of cylindrical asperities in sliding. Int. J. Mech. Sci., 1994, 36(11), 1045-1059.
20. Kapoor, A., Johnson, K. L. and Williams, J. A. A model for the mild ratchetting wear of metals. Wear, 1996, 200, 38-44.