TY - JOUR N2 - The article investigates the influence of the carbody vertical flexibility on the ride comfort of the railway vehicles. The ride comfort is evaluated via the comfort index calculated in three reference points of the carbody. The results of the numerical simulations bring attention to the importance of the carbody symmetrical vertical bending upon the dynamic response of the vehicle, mainly at high velocities. Another conclusion is that the ride comfort can be significantly affected as a function of the symmetrical bending frequency of the carbody. Similarly, there are improvement possibilities for the ride comfort when the best selection of the stiffness in the longitudinal traction system between the carbody and bogie and the vertical suspension damping is made. L1 - http://www.czasopisma.pan.pl/Content/104238/PDF/ame-2017-0014.pdf L2 - http://www.czasopisma.pan.pl/Content/104238 PY - 2017 IS - No 2 EP - 238 DO - 10.1515/meceng-2017-0014 KW - railway vehicles KW - vertical vibrations KW - carbody flexibility KW - ride comfort KW - comfort index A1 - Dumitriu, Mădălina A1 - Cruceanu, Cătălin PB - Polish Academy of Sciences, Committee on Machine Building VL - vol. 64 DA - 2017 T1 - Influences of carbody vertical flexibility on ride comfort of railway vehicles SP - 219 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/104238 T2 - Archive of Mechanical Engineering ER -