A thermomechanical analysis of a railroad axle with a 6 1/2 × 12 tapered roller bearing assembly is conducted to determine the effects of a loose cone rubbing on the axle. For this analysis, it is assumed that the bearing elements have seized or jammed and the smallest resistance torque is due to the friction at the loose cone-axle interface. Temperature-dependent material properties are used as well as a coefficient of friction obtained by means of a pin-on-disk apparatus over a range of temperatures up to 1000° C. For initial radial clearances between cone and axle varying from 0.05 to 5.0 mm and an initial ambient temperature of 25°C, the thermomechanical degradation of the axle is examined as a function of time. The times required for plastic collapse of the axle to occur are determined for the various clearances. For the conditions considered, this collapse takes place in less than three minutes.
Issue Section:
Research Papers
1.
ABAQUS User’s Manual, Version 5.2, 1992, Hibbitt, Karlsson and Sorensen Inc.
2.
Adams, R. 1989, “Measurement of Elastic Constants” Physical and Elastic Characterization, M. McLean, ed. Institute of Metals, London, UK, pp. 1–23.
3.
Anderson, Dale A., Tannehill, John C., and Pletcher, Richard, H., 1984, Computational Fluid Mechanics and Heat Transfer, McGraw-Hill, New York, NY.
4.
Blok, H., 1937, “Theoretical Study of Temperature Rise at Surfaces of Actual Contact under Oiliness Conditions,” Proceedings of the Institution of Mechanical Engineers, General Discussion of Lubrication, Vol. 2, Institution of Mechanical Engineers, London, pp. 222–235.
5.
Chakrabarty, J., Theory of Plasticity, 1987, McGraw-Hill, New York, NY.
6.
Dembowski, P. V., and Mukherjee, K. H., 1976, “High Temperature Mechanical Properties of a Vanadium Modified Ni-Cr-Mo Steel,” Second International Conference on Mechanical Behavior of Materials, 16-20 Aug., Boston, Mass., ASM, pp. 1800–1803.
7.
DeSalvo, G. J., and R. W. Gorman, 1991, ANSYS® Engineering Analysis System User’s Manual, Version 4.4A, Swanson Analysis Corporation, Houston, PA.
8.
Dunnuck, D. L., Conry, T. F., and Cusano, C., 1992, “Steady-State Temperature and Stack-Up Force Distributions in a Railroad Roller Bearing Assembly,” Rail Transportation—1992, RTD-Vol. 5, ASME Book Number G00767, pp. 89–96.
9.
Hazelett
T. L.
Khonsari
M. M.
1992
a, “Finite Element Model of Journal Bearings Undergoing Rapid Thermally Induced Seizure
,” Tribology International
, Vol. 25
, No. 3
, pp. 177
–182
.10.
Hazelett
T. L.
Khonsari
M. M.
1992
b, “Thermoelastic Behavior of Journal Bearings Undergoing Seizure
,” Tribology International
, Vol. 25
, No. 3
, pp. 183
–187
.11.
Hill
W. H.
Shimmin
K. D.
Wilcox
B. A.
1961
, “Elevated-Temperature Dynamic Modulii of Metallic Materials
,” Proc. ASTM
, Vol. 61
, June, pp. 890
–906
.12.
Johnson, K. L., 1985, Contact Mechanics, Cambridge University Press, p. 117.
13.
Kuhlman, C., Sehitoglu, H., and Gallagher, M., 1988, “The Significance of Material Properties on Stresses Developed During Quenching of Railroad Wheels,” Proc. of the 1988 Joint ASME/IEEE Railroad Conference, Hawthorne, V. T. and Kneschke, T., eds., ASME Book No. 100265, N.Y., pp. 55–63.
14.
Leedham, R. C., and W. N. Weins, 1992, “Mechanistic Aspects of Bearing Burn-off,” presented at ASME/IEEE Joint Railroad Conference, April 1, 1992, Atlanta GA.
15.
Loewen
E. G.
Shaw
M. C.
1954
, “On the Cutting-tool Temperatures
,” Trans. ASME
, Vol. 76
, pp. 217
–231
.16.
Metals Handbook, 1990, American Society of Metals, Cleveland, Ohio.
17.
Mizukami
H.
Miyashita
Y.
Murakami
K.
1977
, “Mechanical Properties of Continuously Cast Steel at High Temperatures
,” Tetsu-to-Hagane (Iron and Steel)
, Vol. 63
, S 562, p. 146
146
(in Japanese).18.
Smithells, C. J., 1983, Metals Reference Book, Sixth Edition, Butterworths, London and Boston.
19.
Spotts, M. F., 1964, Mechanical Design Analysis, Prentice Hall, Englewood Cliffs, N.J., p. 161.
20.
Tekriwal, P. K., 1989, “Three-Dimensional Transient Thermo-Elasto-Plastic Modeling of Gas Metal Arc Welding Using the Finite Element Method,” Ph.D. thesis, University of Illinois at Urbana-Champaign, Urbana, IL.
21.
Tian
X.
Kennedy
F. E.
1994
, “Maximum and Average Flash Temperatures in Sliding Contacts
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 116
, No. 1
, pp. 167
–174
.22.
Touloukian, Y. S., Editor, 1967, Thermophysical Properties of High Temperature Solid Materials, Vol. 3, Ferrous Alloys, Thermophysical Properties Research Center Purdue University The MacMillan Co., N.Y.
23.
Wang, H., 1996, “Axle Bum-Off and Stack-Up Force Analyses of a Railroad Roller Bearing Using the Finite Element Method,” Ph.D. Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL.
24.
Wang, S., Bramson, E. D., Cusano, C., and Conry, T. F., 1991, “Temperature Distribution Associated with Failures of Railroad Bearings, Part I: A Model for the Frictional Heat Generated between the Cone and Axle,” Technical Report submitted to the Association of American Railroads for research conducted under Grant AAR ALRR Task 3-26, No. UIUC ENG 90-3042.
25.
Williams, W. M., Mucciardi, F., Drew, R., and Moyar, G. J., 1987, “Postmortem Metallurgical, Thermal and Mechanical Analysis of Railroad Journal Burn-off,” Railroad Journal Roller Bearing Failure and Detection, G. J. Moyar, S. K. Punwani, eds., RTD-Vol. 1, ASME Book Number G00437, pp. 39–52.
This content is only available via PDF.
Copyright © 1996
by The American Society of Mechanical Engineers
You do not currently have access to this content.
