Partial-profilogram reconstruction method to measure the geometric parameters of wheels in dynamic condition

E. J Bernal (1) , Ronald Martinod (2) , G. R Betancur (1) , L.F Castañeda (1)

1 EAFIT - EAFIT University
2 LGIPM - Laboratoire de Génie Industriel, de Production et de Maintenance

The present work poses a method for the measurement of geometric parameters of rail wheels in a dynamic condition, by reconstructing the profilogram from a portion of the wheel surface wear with artificial vision. The suggested procedure can work with a two-dimensional laser displacement transducer or by processing a sole image from a single camera with a structured light source. These two procedures require fewer devices and simpler implementation processes and allow the use of mathematical algorithms that demand less information processing, thus generating more accurate results. Railway operators may implement this method to perform predic-tive maintenance to their rolling stock at a fraction of the regular cost; thus achieving better precision, availability, maintenance performance and improving safety. Results were compared to those given by commercial equipment, showing similar precision but a better cost-benefit relation.

Mots clés: Dynamic measuring; geometric parameters; profilogram; railway testing; wheel profile

Domaines: Informatique [cs]; Modélisation et simulation

E. J Bernal, Ronald Martinod, G. R Betancur, L.F Castañeda. Partial-profilogram reconstruction method to measure the geometric parameters of wheels in dynamic condition. Vehicle System Dynamics, 2016, 54 (5), pp.606-616. ⟨10.1080/00423114.2016.1147588⟩. ⟨hal-02160027⟩