FINITE ELEMENT MODELS FOR THE ANALYSIS OF THE EFFECTIVENESS OF THE VERTICAL VIBRATION REDUCTION METHOD OF THE RAILWAY VEHICLE CARBODY WITH ANTI-BENDING SYSTEM - APPLICATIONS FOR AN EXPERIMENTAL SCALE MODEL

Mădălina DUMITRIU, Ștefan SOROHAN, Ioana Izabela APOSTOL

Abstract


In the paper are presented two finite element models of an experimental scale model of the carbody (ESMC) of the railway vehicle, used to analyse the effectiveness of a new method to reduce the vertical bending vibration of the carbody. The method is based on the use of an anti-bending system composed of two bars, mounted on the longerons of the carbody underframe. The effectiveness of the method is assessed based on two criteria - the increase of the frequency and the reduction of the amplitude of the first vertical bending mode, using the results of modal analysis and frequency analysis on the dynamic response of the ESMC with/without anti-bending system.

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