第２部門④

[2B25-30-01] Influence of spatial variations of several parameters of rail on wheel-track dynamic response

*Kazuhiro Koro¹, Kazuhisa Abe¹ (1. Niigata University)

Keywords:wheel-rail vibration analysis, rail, spatial variation of geometric dimension and material parameters, Karhunen-Loeve expansion, stochastic collocation method

The variation of sleeper reaction force and wheel-rail contact force induced by the spatial variation of geometric dimensions and material parameters of rails are simulated with the stochastic FEM (SFEM) and the stochastic collocation method.
The spatial varitation of the dimensions or parameters is prescribed with Karhunen-Loeve expansion.