Y. Ravalard et al., DYNAMICAL BEHAVIOR OF ARTICULATED TRAIN CAR AND INFLUENCE ON VERTICALCOMFORT, Transactions of the Canadian Society for Mechanical Engineering, 18(3), 1994, pp. 269-283
The aim of the study developed in this article is to stress the main p
hysical phenomena linked to the articulation of vehicles from a system
atic modeling of the railway train dynamics. Confort has been, up to n
ow, one of the main criteria in the specification sheets which any veh
icle has to meet when being designed and even when answering an invita
tion to tender. Several solutions currently exist to determine the com
fort levels inside railway vehicles but these solutions have always be
en reduced to the study of a single vehicle. The idea is to develop th
e research problematics in order to demonstrate the validity or not of
the study of vehicles isolated in the articulated train cars; or in c
ase of articulated train cars to show that the dynamical features are
modified and have a non-neglectable influence on the comfort behaviour
of the different vehicles of this train car. In the first place, a si
mple model will be made to represent correctly the behaviour of the ve
hicle. A modal analysis on models with several articulated vehicles wi
ll be made to underscore the phenomena related to the increase in vehi
cles. A forced response analysis will assess the phenomena and help to
determine a solution with an integrated damper located in the joint.