Wybor modelu dynamicznego dla analizy obciążeń w przekładni zębatej

The paper presents the analysis of the choice of dynamical model of a gear. It have been analysed the problems of: the continuous mass of driving shafts (applying the discrete-continuous systems) and couplings between grades of a gear box. It has been confirmed, that in case of great masses or great couplings it is impossible to perform the load analysis with the aid of the model of isolating gear.