Rail Vehicle Cab Structural Dynamic Behavior Under Collision And Improving Its Crush Worthiness

is now constructing a modern and reliable railway industry, consequently; one mainrnproblem of the Rail vehicle transportation industry is its accidents. This paper will attempt torndevelop a passive safety consideration for rail vehicle cab using computational methods forrnpredicting the rail vehicle cab structural dynamic behavior under collision for enhancement in itsrncrush worthiness.rnThe rail vehicle cab structural dynamic behavior under collision analysis is done for light railrntransit (LRT) vehicle cab, through finite element method (FEM) and it is one of the non-linearrnfinite element problems as the vehicle cab structure is the assembly of multiple parts, diversernstructural shape and is made of different materials.rnDuring crush, these parts experience high impact loads resulting in high stresses. Once thesernstresses exceed the material yield load and/or the buckling critical limit, the crashing structuralrncomponents undergo large progressive elastic-plastic deformation and/or buckling. This systemrnabsorbs 4.5MJ kinetic energy in a progressive of 2.25m deformation length. The whole processrnoccurs within very short time durations and this is simulated by non-linear FEM using ANSYSrn(LS-DYNA).

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