ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-08312018-164842


Tipo di tesi
Tesi di laurea magistrale
Autore
GIORDANO, VALENTINA
URN
etd-08312018-164842
Titolo
Robotic non-contact rail inspection feasibility study
Dipartimento
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA GESTIONALE
Relatori
relatore Prof. Dini, Gino
Parole chiave
  • Rail foot defects
  • Rail
  • Pulsed thermography
  • Polytec Vibsoft package
  • Network Rail
  • NDT techniques
  • Mosaiq v4
  • Laser Doppler Vibrometer
  • Ibeam
  • Active thermography
  • Robotic inspection
  • technology limitations
Data inizio appello
03/10/2018
Consultabilità
Completa
Riassunto
Safe operation of railways is one of the most important challenges of Network Rail. Thanks to the improvement of inspection and maintenance practices, the total number of defects that occur on rails has decreased in recent years. However, damage occurring on the rail foot remains critical. Current inspection technologies have limited capability for this type of defect. This research aims to validate a non-contact rail inspection concept; as part of a wider European robotic inspection research project. Laser Doppler vibrometer and thermography camera were experimentally evaluated and their effectiveness assessed. Experiments were performed on metal plates first, in order to carry out a pre-evaluation of the two systems. I-beams simulating rails were tested subsequently. Recommendations regarding the automation of the new inspection concept were provided, included technology requirements and limitations.
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