Research Group
Diagnosis and Maintenance of Guided Transport Systems
Group
coordination: Patrice
AKNIN
PURPOSES
The guided transports, and specially railway systems, are in a particular phase of their evolution. The manufacturers, as well as operators, are in a hard competition context, and moreover the infrastructure management and operating administration are separate. In this technical and economical context, the maintenance policies could integrate some drastic changes: the main purpose becomes to send the good maintenance team at the right place, at the right moment. This allows cost reduction, the shortest track immobilization, while assuring high safety level of the complete system.
Some news accurate devices are required in order to diagnose degradations, with the help of advanced decision procedures. The availability of new mesuring systems that include high storage and processing capacities allows the development of automatic or semi-automatic diagnosis procedures. Futhermore, the operators expertise is completed by informations extracted from these database during feedback from experiments. The higher electronic integration, the strength of dedicated processors, new sensors technologies, fast real time algorithms, can be integrated into technological "bricks" for new transportation systems designers.
For several years, Diagnosis and Maintenance group of LTN laboratory intensifies its activities on these kind of projects. The main concerning domains consist of Signal processing, Pattern Recognition, Diagnosis, Statistics and Reliability
PROJECTS
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CCF-FI Detection and classification of rail defect by means of eddy current sensor.
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DIAGUS Diagnosis of internal rail defect by ulstrasonic signature analysis
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CdV Diagnosis of track circuit operation
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RAILBAYES Rails singular points recognition and railway infrastructures maintenance policies
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VIRMALAB Virtual railway infrastructures maintenance workshop
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CCF-VI Speed measurement by pulsed eddy current sensor
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TEOR+ Diagnosis of vehicles equipped with CAN bus
PUBLICATIONS
GROUP STAFF
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Patrice Aknin, Senior Researcher
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Laurent Bouillaut Researcher
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Allou Samé Researcher
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Latifa Oukhellou Associate Researcher
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Olivier François, Postdoc
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Cyril Hory , Postdoc
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Frédéric Cyr, PhD
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Roland Donat, PhD
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Zora Cherfi, PhD
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Inès Ayadi, PhD
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Faicel Chamroukhi, PhD
FORMER MEMBERS
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Etienne Côme, postdoc CNRS Paris 1 - UCL Louvain
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Mounir Djeddi, Assistant Professor, University of Boumerdès
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Abdeljabbar Ben Salem, Engineer Bombardier Transports
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Alexandra Debiolles, Engineer SNCF
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Mohamed Bentoumi, Assistant Professor, University of Mostaganem
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Hervé Cygan, Engineer EDF
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Françoise Fessant, France Telecom Enginrer
SPECIFIC SCIENTIFIC EQUIPMENTS