Identification of friction torque in a sliding bearing by thermal data

Abstract

The boundary inverse problem of heat friction diagnostics using the simplified three-dimensional (3D) model of the heat process in a sliding bearing is presented in the form of two-dimensional (2D) and 3D heat transfer equation. Comparisons of temperature distributions received by the solution of direct problems with use of 2D and simplified 3D thermal models are given. The efficiency of the inverse problem solution was tested by comparing the calculated values of the friction torque to the tested values obtained by traditional method.