Preliminary communication
https://doi.org/10.17559/TV-20150809184241
Mathematical modelling of thermal behaviour of cylindrical roller bearing for towed railway vehicles
Vladimir Blanuša
; The School of Higher Technical Professional Education, Školska 1, 21000 Novi Sad, Serbia
Milan Zeljković
orcid.org/0000-0002-8542-0535
; University of Novi Sad, Faculty of technical sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Branko M. Milisavlevich
; The School of Higher Technical Professional Education, Školska 1, 21000 Novi Sad, Serbia
Branko Savić
; The School of Higher Technical Professional Education, Školska 1, 21000 Novi Sad, Serbia
Abstract
This paper presents a mathematical model for the prediction of the thermal behaviour of a cylindrical roller bearing for axle assembly of the wheel set of the towed railway vehicles. The mathematical model allows for the heat generated due to lubrication, radial and axial loads at different speeds of the train to be calculated. The method of calculating of the heat conducting and converting coefficients in the bearing is also shown. By using the general purpose software system based on the finite elements method, the thermal behaviour of the above mentioned cylindrical roller bearings was analysed. Temperature values of the bearings are determined by the finite elements method values depending on the speed of the train movement on a straight-line section and the curve (v = 20 km/h, v = 40 km/h, v = 60 km/h, v = 80 km/h and v = 100 km/h), the curve radius (R = 500 m), the ambient temperature of 20 °C and the cant height (h = 110 mm, h = 140 mm, h = 180 mm).
Keywords
cylindrical roller bearing for towed railway vehicles; finite elements method; mathematical modelling
Hrčak ID:
181264
URI
Publication date:
10.5.2017.
Visits: 2.118 *