A numerical model to predict train induced vibration is presented. The dynamic computation considers mutual interactions invehicle/track coupled systems by means of a finite and discrete elements method. The rail defects and the case of out-of-roundwheels are considered. The dynamic interaction between the wheel-sets and the rail is accomplished by using the non-linearHertzian theory. The strong point of this study consists in the model used to simulate the behaviour of pads. The rail-sleepercontact is assumed extended to an area defined such a contact-zone, rather than a single point assumption which fits better realcase studies. Experimental and numerical validations show how prediction fits well experimental data.
Numerical Modelling of Train Induced Vibrations / Ferrara, R.; Leonardi, Giovanni; Jourdan, F.. - In: PROCEDIA: SOCIAL & BEHAVIORAL SCIENCES. - ISSN 1877-0428. - 53:2012(2012), pp. 155-165. [10.1016/j.sbspro.2012.09.869]
Numerical Modelling of Train Induced Vibrations
LEONARDI, Giovanni
;
2012-01-01
Abstract
A numerical model to predict train induced vibration is presented. The dynamic computation considers mutual interactions invehicle/track coupled systems by means of a finite and discrete elements method. The rail defects and the case of out-of-roundwheels are considered. The dynamic interaction between the wheel-sets and the rail is accomplished by using the non-linearHertzian theory. The strong point of this study consists in the model used to simulate the behaviour of pads. The rail-sleepercontact is assumed extended to an area defined such a contact-zone, rather than a single point assumption which fits better realcase studies. Experimental and numerical validations show how prediction fits well experimental data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.