chapter  5
40 Pages

Thermal Considerations in Tribology

This chapter provides a brief review of the fundamentals of transient heat transfer and of some of the extensive literature on the subject. Some representative results and equations are given to illustrate the effect of the different parameters on the transient temperatures generated between rubbing surfaces. The chapter presents some of the fundamental concepts and relationships on which transient heat transfer is based. The program is capable of treating the transient heat transfer problem in lubricated layered contacts with any arbitrary distribution of layer properties and thicknesses. The program as developed would be useful in investigating the effect of the different parameters on the temperature distribution in line contacts. The developed program is utilized to study the variation in maximum film temperature versus oil film thickness for several surface layer thicknesses. The difference between the maximum film and surface temperatures is also controlled by the lubricant film thickness and its conductivity.