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Brake pad-disk temperature distribution

Brake pad-disk temperature distribution

Brake pad-disk temperature distribution

Hi there!

I would like to calculate the temperature developement of a brake system; this means brake pad in contact with brake disk.

I can calculate the dissipated power during the braking, as well as the convection on the disk depending on the rotation speed. However, I´m no sure about the distribution of the produced heat on the contact.
What porcentage of the heat moves to the pads and what to the disk?
As the pads have smaller surface, their temperature will increase faster. Then, the disk with a lower temperature will tend to cool the pads down while rotating. It is possible to consider this effect?

I try to make my calculations with Ansys, but the key points noted above are complicating my life.

Has someone experience on similar calculations? Or any documentation where I can find out how to simulate these effects?

Thanks in advance!

Best regards,
Asier Villanueva

RE: Brake pad-disk temperature distribution

RE: Brake pad-disk temperature distribution

The typical assumption is that the contact surface temperature of pad and disc are equal.

Heat flux into both is probably dominated by conduction.

Temperature of both is determined by specific heat and cooling ability.

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