33-49 STUDIUL INFLUENȚEI VOLANTEI CU MASĂ DUBLĂ ASUPRA REDUCERILOR VIBRAȚIILOR PRODUSE DE MOTOR
STUDIES OF THE INFLUENCE OF DUAL-MASS FLYWHEEL ON REDUCING THE VIBRATION OF THE ENGINE
Currently, engine designers have to downsize and down speed the engine in order to satisfy European requirements in terms of CO2 emissions. A simplified mathematical model (2 degrees of freedom) has been developed in order to show the positive effect of a Dual Mass Flywheel (DMF) on the powertrain. The model contains two rotational masses, torsional stiffness and damping properties. The engine torque variation is simplified by a sin function. The system is solved in Matlab using Runge-Kutta formula. The calculations were performed in three different rpm’s.
Keywords: harshness, noise, flywheel, vehicle, vibration
Cuvinte cheie: disconfort, zgomot, volantă, vehicul, vibrații