In this paper a CFD (computational fluid dynamics) based lumped parameter method comparing the thermal performance of brake rotors and predicting the transient temperatures and brake lining wear in vehicles is presented. A two pronged approach was developed for this purpose. A rotor stand-alone model was used to predict rotor performance curves and, simultaneously, heat transfer coefficients of the brake rotor were computed corresponding to the rotor performance curves, and the appropriate heat transfer correlations were established. In the second part of this approach a brake model in a vehicle was developed in order to solve the air flow through rotors in different vehicles at various speeds. These rotor flows were cross-referenced with the model-generated rotor performance curves to compute the heat transfer coefficients in the vehicle. These vehicle heat transfer coefficients were used with the heat inputs obtained from the vehicle dynamics in a lumped capacitance model of a brake rotor to predict the transient brake rotor temperatures.
CFD based lumped parameter method to predict the thermal performance of brake rotors in vehicle
Eine CFD-basierte konzentrierte Parametermethode zur Vorhersge der thermischen Stabilität von Bremsscheiben in Fahrzeugen
2003
7 Seiten, 19 Bilder, 2 Quellen
Conference paper
English
CFD Based Lumped Parameter Method to Predict the Thermal Performance of Brake Rotors in Vehicle
SAE Technical Papers | 2003
|CFD based lumped parameter method to predict the thermal performance of brake rotors in vehicle
Automotive engineering | 2003
|British Library Conference Proceedings | 2003
|Thermal Analysis of Vented Brake Rotors
Automotive engineering | 1978
|Thermal Analysis of Vented Brake Rotors
SAE Technical Papers | 1978
|