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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Laffont, Guillaume
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Ceramic-coated type III femtosecond Fiber Bragg Grating for high temperature environments
- 2023Ultrasonic Guided Waves Measurements using Bragg Gratings in Optical Fibers under Varying Environmental Conditionscitations
- 2023Ultrasonic guided waves measurements using Fiber Bragg Gratings on optical fibers under varying environmental conditionscitations
- 2022Selective Laser Melting In Situ Temperature Monitoring Using Femtosecond Point-by-Point Fiber Bragg Gratingscitations
- 2022New shapemeter roll technology based on Fiber Bragg Grating technology for on-line flatness monitoring of thin cold rolled metal sheetscitations
- 2019Guided wave imaging of a composite plate using passive acquisitons by Fiber Bragg Gratings on optical fibers
- 2018Passive guided waves measurements using fiber Bragg gratings sensorscitations
- 2017Temperature Resistant Fiber Bragg Gratings for Online Monitoring of Future Sodium cooled Fast Reactors: Paving the Way to SHM Implantation into the Nuclear Industry
- 2015Irradiation campaign in EOLE reactor facility of fibre Bragg grating sensors dedicated to the online temperature measurement in critical reactor facilities (SOMETIME project)
- 2007High speed real-time contact measurements between a smart train pantograph with embedded Fibre Bragg Grating sensors and its Overhead Contact Line
Places of action
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conferencepaper
High speed real-time contact measurements between a smart train pantograph with embedded Fibre Bragg Grating sensors and its Overhead Contact Line
Abstract
International audience ; Enhancing train transportation is a key issue as competing transportation means are gradually becoming saturated in capacity. The European Union (EU) tries to promote this by developing initiatives and enhancing the competitiveness of the rail grid by means of deregulation and interoperability, supporting this process with a planned upgrade to the existing rail network.The SMITS project (Smart Monitoring of Train Systems) of 5th European Framework Program (FP5) has been specifically devoted to control the contact force between the train pantograph and the Overhead Contact Line (OCL), enabling both the infrastructure managers to control the rolling stock operators compliance with their infrastructure rules (e.g.: pantograph maximum wear on the OCL), and the rolling stock operators to optimize the wear conditions and proceed to predictive maintenance.In such a context, several well-suited electromagnetic immune Optical Fibre Bragg Grating (FBG) sensor lines were integrated by SMITS partners into the current collectors, turning the pantograph into a 3 points bending-based sensor in direct contact with the OCL, offering the advantage to be less sensitive to inertial forces (especially those introduced by pantograph suspending devices), which should lead to more accurate measurements.A semi-empirical model, validated by FEM analysis and several laboratory tests performed at high voltages, was introduced into the signal processing software of a dedicated highly accurate and auto-calibrated FBG measurement system (accuracy and drift lower than 0.6 pm @ 1550 nm, and at 500 Hz measuring rate), providing simultaneous measurements over several FBG optical lines.On-line validation tests were performed during a full week on a very high speed train “TGV Duplex” between Paris and Vendôme (France) at speeds up to 320 km/h, leading to equivalent linear resolution better than 20 cm along the track.Contact forces between the pantograph and the OCL, as well as temperatures inside the current collectors were ...