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1 2011

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Dynamic analysis of railway platform chassis model

Chłus K., Krasoń W.

Journal of KONES

2011

Vol. 18, No. 2

93-100

The aim of the paper is to build a numerical model of a railway wagon, to perform statics calculation as well as to compare the calculations results with the experimental results of measurement of a real railway wagon maximal deflection and to conduct dynamic analyses. The examined railway wagon was designed to transport interchangeable containers in ACTS (Abroll Container Transport System). The essential matter of such reloading is placing the container on a special rotating platform which enables horizontal reloading of the load onto the truck. In order to perform strength and dynamic numerical analyses with a finite element method (FEM), a 3D coat-beam model of the wagon were prepared. The discreet FEM model was executed with the aid of MSC.Patran preprocesor and for calculations MSC Nastran program was applied. The obtained results were verified by the experimental results of measurement of real railway wagon maximal deflection. The correctly verified model was applied both for modal analysis of free vibration and time dependent dynamic analysis. The influence of dynamic load on construction strength was examined. The loading model was selected so as to represent hypothetical simultaneous loading of the containers on the carriage frame. It turned out that the most strenuous element during the simulation of loading the containers onto the frame was the element of the vertical reinforcing plate which is in the direct contact with the pivot support of the carriage.