Open AccessOn-line 2D monitoring of rolling contact fatigue/wear phenomena in dry tests
Author(s) -
Ileana Bodini,
Candida Petrogalli,
Angelo Mazzù,
Michela Faccoli,
Matteo Lancini,
Simone Pasinetti,
Giovanna Sansoni,
Franco Docchio
Publication year - 2017
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/882/1/012012
Subject(s) - line (geometry) , crest , anisotropy , laser , structural engineering , mechanical engineering , optics , computer science , materials science , engineering , physics , mathematics , geometry
We present the in-field use of a recently developed on-line, real time, optical monitoring system for bi-disk rolling contact tests on railway-wheel- and rail- steel disks, based on laser illumination and a high-speed camera. Qualitative, as well as quantitative information can be obtained by the use of specific indexes derived from the images using blob analysis. Monitoring the tests provides information about the initial transients of turning-crest removal, on the steady state reached, and on the dynamics of the surface in between. Blob anisotropy is a key element to draw information of the mechanisms governing this intermediate state