Title page for ETD etd-11242009-020117
|Type of Document
||Golan, Lawrence P.
||Thermal analysis of sliding contact systems using the boundary element method
||Master of Science
|Vick, Brian L.
|Furey, Michael J.
|Nelson, Douglas J.
|Date of Defense
A variation of the boundary element method is developed to determine the distribution
of frictional heat and the ensuing surface or subsurface temperature rise caused by frictional
heating between sliding solids. The theoretical model consists of two semi-infinite
substrates each coated with a film of arbitrary thickness and thermal properties. A three
dimensional transient analysis is developed which involves the thermal coupling of the
two sliding solids at the true contact areas. The boundary element solution is based on
a moving Green's function which naturally incorporates the combined conduction and
convection effects due to sliding. Results are presented to display some of the important
numerical characteristics of the boundary element solution method. Results are also
presented that show the sensitivity of surface temperature rise to contact area
evolvement, geometry and subdivision. The effects of surface film thickness and thermal
properties on surface temperature rise are presented for a range of Peelet numbers.
Lastly, a comparison of theoretical predictions and experimental measurements for surface
temperature rise of a graphite epoxy ball loaded against a rotating sapphire disk is
|| Approximate Download Time
| 28.8 Modem
|| 56K Modem
|| ISDN (64 Kb)
|| ISDN (128 Kb)
|| Higher-speed Access
next to an author's name indicates that all
files or directories associated with their ETD
are accessible from the Virginia Tech campus network only.
If you have questions or technical
problems, please Contact DLA.