Influences of Carbody Vertical Flexibility on Ride Comfort of Railway Vehicles

• Autorzy: Dumitriu M. , Cruceanu C.

Identyfikatory

DOI

10.1515/meceng-2017-0014

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

railway vehicle; vertical vibrations; carbody flexibility; ride comfort; comfort index

PL

pojazd szynowy; wibracje pionowe; elastyczność nadwozia; komfort jazdy; wskaźnik komfortu

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. LXIV, nr 2
• Strony: 219--238
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Dumitriu M.

• Department of Railway Vehicles, University Politehnica of Bucharest, Bucharest, Romania

autor

Cruceanu C.

• Department of Railway Vehicles, University Politehnica of Bucharest, Bucharest, Romania

Bibliografia

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Uwagi

EN

This work has been funded by University Politehnica of Bucharest, through the “Excellence Research Grants” Program, UPB – GEX – 2016. Research project title: Research on developing mechanical and numerical models for the virtual evaluation of the dynamic performances in the railway vehicles (in Romanian). Contract number: 48/26.09.2016.