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Memorias de investigación
Communications at congresses:
INFLUENCE OF GEOMETRICAL AND THERMAL PARAMETERS ON THE THERMAL COMPORTMENT OF A PIN-ON-DISK SYSTEM
Year:2010
Research Areas
  • Mechanical engineering
Information
Abstract
Strong temperature gradients are often the cause of malfunctions taking place in mechanical systems which associate two rubbing solids. This work presents the thermal behaviour of a system consisting on a rotating disk in rubbing contact with a pin. Immersed in an environment characterized by a surface conductance h¿¿ and a temperature T¿¿ , the disk is subjected to localised heat flux generated by the friction with the pin, eccentric with respect to the rotating axis of the disk. Several parameters intervene decisively on the local heat transfer and therefore on the temperature of the contact surface between the two solids in friction. In addition to the conductance, other parameters as the angular velocity of the disk, the frictional heat flux or the pin diameter and its offcenter with respect to the disk rotation axis, play a major role in the thermal exchange. The present work examines the influence of such parameters on the thermal solution. An analytical expression is proposed for the calculation of the 3D disk¿s temperature. The presented thermal cartographies make possible to locate the zones of the system undergoing the greatest temperature gradients and thus the associated spots of mechanical rupture. Results are compared with other analytical solutions found in the specialized literature.
International
Si
Congress
7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, (HEFAT2010)
960
Place
Antalya, Turkey
Reviewers
Si
ISBN/ISSN
978-1-86854-818-7
Start Date
19/07/2010
End Date
21/07/2010
From page
913
To page
917
Proceedings of the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, (HEFAT2010).
Participants
  • Autor: Jose Antonio Lozano Ruiz (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnologías ferroviarias y simulación avanzada
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