EXPERIMENTAL STUDY OF THE POSSIBILITY OF INCREASING ENERGY EFICIENCY THROUGH THE CONTROL OF FRICTION IN ROLLER BEARINGS
OF THE WHEEL TRAIN FROM DACIA SOLENZA
The present study shows in known technical concepts and methods from experimental testing the problematic aspects concerning the friction in wheel train from Dacia Solenza 1.4 MPI car. After symptoms appearance with noises when cornering at some speeds the diagnostic procedure was applied and the wheel bearings with increased wear level were detected and changed. The worst case scenario is when the wheel bearing is so advanced in degradation than stops the wheel from turning leading to higher damages of the wheel train of the vehicle. Analysing the situation in the present case it was outlined that after some kilometres travelled in various conditions and monitoring the noise emission and type of vibration with decibel meter microphone and stethoscopes rear wheel has problems. The development of present paper shows the simplified procedure of replacing the wheel bearing on vehicle Dacia Solenza. First is a theoretical description of the problematic situation and there are located the wheel bearings in general terms and then there are presented the main components of the wheel train. Finally there is a short description of the simplified method for the wheel bearing exchange on the studied vehicle.
Keywords: Dacia, bearings, friction, efficiency, wheels
Cuvinte cheie: Dacia, rulmenți, frecare, randament, roți
