A previous non-linear lumped kinetoelastodynamic model for the study of the dynamic behaviour of external gear pumps has been further developed in order to improve the accuracy of the simulation results. In particular, this paper deals with the modelling and analysis of the phenomena bound to the pressure distribution around the gears, since they have the most important effect on the dynamic behaviour. Phenomena as the pressure variation in the inlet and outlet chambers have been taken into account. Special attention was given to the pressure in the trapped volume which has been modelled in a more accurate way in order to understand possible vibration sources. The pressure phenomena are shown through some simulated results. The model can be used in order to foresee the influence of working conditions and design modifications on vibration generation. © (2006) by the Katholieke Universiteit Leuven Department of Mechanical Engineering All rights reserved.
Pressure phenomena in dynamic analysis of external gear pumps
DALPIAZ, Giorgio;MUCCHI, Emiliano;D'ELIA, Gianluca;
2006
Abstract
A previous non-linear lumped kinetoelastodynamic model for the study of the dynamic behaviour of external gear pumps has been further developed in order to improve the accuracy of the simulation results. In particular, this paper deals with the modelling and analysis of the phenomena bound to the pressure distribution around the gears, since they have the most important effect on the dynamic behaviour. Phenomena as the pressure variation in the inlet and outlet chambers have been taken into account. Special attention was given to the pressure in the trapped volume which has been modelled in a more accurate way in order to understand possible vibration sources. The pressure phenomena are shown through some simulated results. The model can be used in order to foresee the influence of working conditions and design modifications on vibration generation. © (2006) by the Katholieke Universiteit Leuven Department of Mechanical Engineering All rights reserved.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
