Study of variability in dynamic simulations of turnouts using the PGD method

he design and maintenance of turnouts implies considering a great number external factors that have an effect on their structural integrity. The proper generalised decomposition (PGD) method is used in this paper to carry out parametrised study the vehicle-track interaction non-intrusive way. reduced model built using defined domain for some influence parameters: vehicle speed, wheel/rail friction coefficient axle load. A major assumption PGD solution its ability express quantities interest separated form. One goals show relevance separability field railway dynamics. example switch chosen as validation method. output dissipated energy per metre rail. robustness verified complete solution. Probabilistic simulations are carried order explore possibility numerical abacus dynamic switches crossings. These first tests promising reduction