Numerical modeling of the coupling between the temperature and velocity in braking systems

Abstract eng:
The numerical analysis of temperature fields in a pad-disc braking system at the coupling of temperature-dependent coefficient and velocity was carried out. The computations are obtained from the solution of HDFW (heat dynamics of friction and wear) system of equations by means of the finite element method (FEM). The proposed methodology, unlike analytical methods, allow to combine a feedback between the velocity, applied load and moment of braking force using complex geometrical objects. The parameters of the process are interdependent and vary according to frictional, mechanical, thermophysical properties of materials of the friction pair, construction of a brake. It was concluded that in order to satisfy the requirements resulting from the conditions of exploitation of the machines and durability of the materials of the friction pair, it is necessary to take into account the mathematical description of the process comprised in HDFW system of equations.

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