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Influence of thermosensitivity of materials on the temperature of a pad/disc system

Grześ P.

Acta Mechanica et Automatica

2011

Vol. 5, no. 4

46-53

A heat generation problem due to friction in a pad/disc brake system is studied. A linear problem is confronted and compared with a non-linear in which thermophysical properties of materials are temperature-dependent. To examine temperature of the pad and the disc during a single and a twofold braking process, axisymmetric FE contact model was used. The obtained results revel insignificant temperature differences at specified axial and radial positions of the components of the friction pair. It was remarked that the level of discrepancies between the constant and the thermosensitive materials correspond with the coefficient of thermal effusivity.