Separation of contact in a sliding system with frictionally excited thermoelastic instability

Abstract

The first phase of the thermoelastic instability, which is characterized by a full contact regime, can be modelled using Fourier decomposition and application of an analytical description. However, in case of further increase of instability, a separation of the contact occurs which is more difficult to cover by mathematical means. The contribution deals with numerical simulations of the separation. The problems are topical in connection with the disk brakes design, should we give an example.

Keywords

• Sliding contact
• Thermoelastic instability
• Hot spots