Abstract
Key words:
Disk brake rotor, pads, caliper, finite elements, thermal stress, fading testing procedure.
Abstract
The results of the braking numerical simulations on a pegs-wing ventilated disk brake rotor, obtained by performing a fading braking procedure, are compared with the experimental ones obtained in the same brake, mounted on a work bench, in the same fading braking procedure. The numerical simulations are performed on the entire disk, besides some structural parameters, thermal conductivity, specific heat and elastic modulus, are considered as a function of the temperature; the other parameters are considered as constant. The results of the numerical simulations are in a good agreement with the experimental ones. It is also shown that numerical calculations can be considered conservative, since the numerical thermal field is a little bit higher than the experimental one. Furthermore the pegs-wing ventilated disk brake rotor is able to dissipate a great amount of thermal flux showing a great dimensional stability.