Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Effects of coil spring three dimensional stiffness on freight wagon lateral behavior
Submission Author:
Leonardo Bartalini Baruffaldi , SP , Brazil
Co-Authors:
Guilherme Santos, Auteliano Antunes dos Santos Junior, Leonardo Bartalini Baruffaldi
Presenter: Leonardo Bartalini Baruffaldi
doi://10.26678/ABCM.COBEM2017.COB17-1858
Abstract
Railway bogies used in freight transportation are usually of the American design three piece type. In this kind of truck the component that effectively supports the wagon car body is called bolster and seats on a couple of coil spring packages that provide vertical, lateral and roll stiffness and damping to the car body movements. In this paper we present a set of multibody simulations of a typical freight rail vehicle supported by springs whose deflection behavior has been extracted from finite element analysis. The structural model shows that even under regular operation ranges, the spring coils tend to contact each other, artificially increasing stiffness and dry friction damping.
Keywords
finite element, multibody dynamics, railway engineering, helical springs
