Numerical and experimental studies on the deformational behavior a composite train carbody of the Korean tilting train

In this study, the vertical deflection and sectional deformation of the composite carbody were investigated by finite element analyses and experiments. The vertical and sectional deformations were measured using displacement gauges under the full weight load condition. The maximum deflection measured on the bottom of sidesill was 9.25 mm. The maximum deflection calculated from the finite element analysis was 8.28 mm. The analysis result was in agreement with the measured one within an error of 10.5%. In the cross-sectional deformation, the side wall was deformed inside of the carbody and the roof and under frame outside. The cross-sectional deformation of the composite carbody was compared with the E653 train of Japan Rail east. The deformational patterns were similar to each other.