Restructuring of European railway companies has resulted in creating new subjects within railway systems infrastructure managers (IM) on the one hand and railway operators (RO) on the other. In this paper we examine the efficiency and rank different business strategies of railway infrastructure managers using the combined AHP/DEA method. Different strategies include different number of paths al...

Acoustic emission (AE) can be employed for the early fault detection of rolling stock wheelset components. Research has been carried out on development a remote condition monitoring (RCM) technology online defects. Railway axle bearings and wheels are critical components that develop faults at any time when in service. AE is reliable passive RCM technique quantitative evaluation structural inte...

Ground vibrations near railway lines are generated by the forces that acting between wheel and rail. It seems to be a straight forward assumption vehicle dynamics important for level frequencies of excitation forces. Different phenomena analysed their role in ground vibrations: rigid body modes bogies, elastic (bending) car body, wheelset. The theoretical analyses use models, simplified detaile...

The railway industry has focused on the improvement of maintenance through use novel technologies. Recently, utilisation repair welding to restore worn area wheels been investigated, as it can bring significant savings in wheelset maintenance. Under an Innovate UK AURORA project, a wheel that previously operated London Underground (LUL) was restored using this process. To test its performance a...

The aim of this paper is to present the results coming from an experimental campaign aimed at definition vibrations acting on a powered and trailer bogie railway vehicle for mass rapid transit during commercial service. results, multiple sensors placed in specific points two wheelsets, can give significative overview dynamic behaviour components, highlighting, when present, notable differences....

Nowadays, press-fitting is widely used in the manufacturing industry because it allows easy and fast installation repetitive, strong, inherently reliable. The quality of a assembly can be verified from curves forced monitoring. This study aims to investigate characteristics curve with various interference railway wheelset models determine limit that axles withstand at maximum holding torque wit...

The study aims to develop a measuring circuit determine the loads acting on side frame of bogie from wheelset when wagon is moving. paper reviews and analyzes experimental methods for vertical lateral forces Theoretical studies stress-strain state freight were carried out using finite element method under action axle opening wheelset. As result theoretical by method, places installation strain ...