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TECHNICAL PAPERS

Traction Drive With Reduced Spin Losses

[+] Author and Article Information
O. S. Cretu

TRIBO Consulting, 5308 Boulevard Ext., Rd. SE, Olympia, WA 98501

R. P. Glovnea

Tribology Section, Imperial College, London, UK

J. Tribol 125(3), 507-512 (Jun 19, 2003) (6 pages) doi:10.1115/1.1538192 History: Received February 20, 2002; Revised September 24, 2002; Online June 19, 2003
Copyright © 2003 by ASME
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References

Johnson, K. L, 1985, Contact Mechanics, Cambridge University Press.
Crook,  A. W., 1963, “The Lubrication of Rollers. IV: Measurements of Friction and Effective Viscosity,” Philos. Trans. R. Soc. London, 254, pp. 281–312.
Kunz,  R., and Winer,  W. O., 1976, “Prediction of Traction in Sliding EHD Contacts,” ASME J. Lubr. Technol., pp. 362–366.
Bair,  S., and Winer,  W. O., 1979, “A Rheological Model for Elastohydrodynamic Contacts Based on Primary Laboratory Data,” ASME J. Lubr. Technol., 101, pp. 259–265.
Hirst,  W., and Moore,  A. J., “EHL at High Pressures: II. Non-Newtonian Behavior,” Proc. R. Soc. London, Ser. A, 365, pp. 537–565.
Evans,  C. R., and Johnson,  K. L., 1986, “The Rheological Properties of Elastohydrodynamic Lubricants,” Proc. Inst. Mech. Eng., Part C: Mech. Eng. Sci., 200, C5, pp. 303–312.
Evans,  C. R., and Johnson,  K. L., 1986, “Regimes of Traction in Elastohydrodynamic Lubrication,” Proc. Inst. Mech. Eng., Part C: Mech. Eng. Sci., 200, C5, pp. 313–323.
Johnson,  K. L., and Roberts,  A. D., 1974, “Observation of Viscoelastic Behavior of an Elastohydrodynamic Film,” Proc. R. Soc. London, Ser. A, 337, pp. 217–242.
Tevaarwerk,  J. L., and Johnson,  K. L., 1979, “The Influence of Fluid Rheology on the Performance of Traction Drives,” ASME J. Lubr. Technol., 101, pp. 268–274.
Gaggermeier, H., 1977, “Untersuchungen zur Reibkrafturbertragung in Regel-Reibradgetrieben im Bereich elastohydrodynamisher Schmierung,” Ph.D. thesis, Technical University, Munich.
Zang,  Y., Zang,  X., and Tobler,  W., 2000, “A Systematic Model for the Analysis of Contact, Side Slip and Traction of Toroidal Drives,” ASME J. Mech. Des., 122, pp. 523–528.
Tanaka,  H., Machida,  H., Hata,  H., and Nakano,  M., 1995, “Half-Toroidal Traction Drive Continuously Variable Power Transmission for Automobiles,” JSME Int. J., C-38-4, pp. 775–777.
Dowson,  D., Taylor,  C. M., and Xu,  H., 1991, “Elastohydrodinamic Lubrication of Elliptical Contacts With Spin and Rolling,” Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci., 205, pp. 170–174.
Cretu, O. S., 1982, “Research Upon Capacity and Durability of the Toroidal Traction Drives,” Ph.D. thesis, Polytechnic Institute, Iasi, Romania.

Figures

Grahic Jump Location
Typical traction contact
Grahic Jump Location
Traction curves for various spin values
Grahic Jump Location
Traction coefficient for slip-roll ratio of 0.015
Grahic Jump Location
Slope of linear segment of the traction curses
Grahic Jump Location
Two bodies in dynamic contact
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Typical angular spin variation
Grahic Jump Location
Spin-friendly support ring

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