Influences of Carbody Vertical Flexibility on Ride Comfort of Railway Vehicles

Autor: Dumitriu Mădălina, Cruceanu Cătălin
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Archive of Mechanical Engineering, Vol 64, Iss 2, Pp 219-238 (2017)
Druh dokumentu: article
ISSN: 2300-1895
DOI: 10.1515/meceng-2017-0014
Popis: 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.
Databáze: Directory of Open Access Journals