Abstract

The bench and field testing of friction units of machines and mechanisms reveal inability to measure the frictional force with existing devices, and this significantly reduces the information content of these tests and the accuracy of the diagnostic methods of the technical condition of the test tribounit. This paper presents the development of a method of heat friction diagnostics determining the function of frictional heat and, therefore, the friction torque in a bearing system taking into account the movement of the shaft. The principle of the method is as follows: temperature measurements by time are made in the contact zone of the sleeves. This allows constructing a mathematical model of the thermal process in the friction unit. The solution of the boundary inverse problem detects frictional heat correlated with the friction torque..

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