THERMO-MECHANICAL INSTABILITIES OF FRICTION SYSTEMS – MEASUREMENTS AND COMPUTATIONS

Abstract eng:
Formation of hot spots as well as non-uniform distribution of the contact pressure aredifficulties, troubles imerging in important friction systems, e.g. disc brakes or transmission clutches. If the sliding velocity is high enough, this effect can arise and can cause vibrations, enhanced wear and material damage. Barber (1969) has called the thermoelastic instability a cause of such effects. Authors have paid attention to the field of contact mechanics both from the angle of experimental research and mathematical modelling as well.

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