Search Results - "Bonnardot, Frédéric"

Feedback on the Surveillance 8 challenge: Vibration-based diagnosis of a Safran aircraft engine by Antoni, Jérôme, Griffaton, Julien, André, Hugo, Avendaño-Valencia, Luis David, Bonnardot, Frédéric, Cardona-Morales, Oscar, Castellanos-Dominguez, German, Daga, Alessandro Paolo, Leclère, Quentin, Vicuña, Cristián Molina, Acuña, David Quezada, Ompusunggu, Agusmian Partogi, Sierra-Alonso, Edgar F.

“…•Feedback on the Safran contest organized at the Int. Conf. Surveillance 8.•Benchmark of vibration-based diagnosis methods of aircraft engines in transient…”
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High frequency demodulation technique for instantaneous angular speed estimation by Bonnardot, Frédéric, Lizoul, Khalid, Errafik, Saad, André, Hugo, Guillet, François

“…•Classical Instantaneous Angular Speed estimation methods based on optical encoder are described and analyzed.•A new method based on a analog frequency shift…”
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New second order cyclostationary analysis and application to the detection and characterization of a runner׳s fatigue by Maiz, Sofiane, Elbadaoui, Mohamed, Bonnardot, Frederic, Serviere, Christine

“…Cyclostationarity (CS), as characteristic of signals, is a technique that offers diagnostic advantages for the analysis of failures, faults and disturbances…”
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Natural roller bearing fault detection by angular measurement of true instantaneous angular speed by Renaudin, L., Bonnardot, F., Musy, O., Doray, J.B., Rémond, D.

“…The challenge in many production activities involving large mechanical devices like power transmissions consists in reducing the machine downtime, in managing…”
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Extraction of second-order cyclostationary sources—Application to vibration analysis by Bonnardot, Frédéric, Randall, R.B., Guillet, François

“…This paper addresses the issue of extracting the pure second-order cyclostationary (CS2) part of a signal. This proves very useful in many situations where the…”
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Cyclostationary modelling of rotating machine vibration signals by Antoni, J., Bonnardot, F., Raad, A., El Badaoui, M.

“…This paper is dedicated to modelling rotating machine signals as cyclostationary processes, with strong emphasis on the peculiarities and pitfalls that this…”
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Impact of the non-uniform angular sampling on mechanical signals by El Badaoui, M., Bonnardot, F.

“…Angular sampling is a useful tool to study cyclic rotating machine vibrations. It can be implemented by using computer order tracking, directly, or by…”
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Use of the acceleration signal of a gearbox in order to perform angular resampling (with limited speed fluctuation) by Bonnardot, F., El Badaoui, M., Randall, R.B., Danière, J., Guillet, F.

“…This paper proposes a method to resample the signal against the angle by using the acceleration signal of a gearbox. Firstly, the method is presented. Gear…”
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A New Bearing Fault Detection Method in Induction Machines Based on Instantaneous Power Factor by Ibrahim, A., El Badaoui, M., Guillet, F., Bonnardot, F.

“…Fault detection and diagnosis of asynchronous machine has become a central problem in industry over the past decade. A solution to tackle this problem is to…”
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Detection of Bearing Damage Using Stator Current, and Voltage to Cancel Electrical Noise by Ibrahim, Ali, Bonnardot, Frédéric, El Badaoui, Mohamed, Guillet, François

“…This paper investigates the detection of a bearing defect in an asynchronous machine by analysing the electric signals. For this purpose, it is considered that…”
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Bearing Damage Using Stator Current, Electrical and Voltage to Cancel Electrical Noise by Ibrahim, A., Bonnardot, Frédéric, El Badaoui, Mohamed, Guillet, F.

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A New Bearing Faults Detection Method Based on Instantaneous Power Factor by Ibrahim, Ali, El Badaoui, Mohamed, Guillet, François, Bonnardot, Frédéric

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Detection of Bearing Damage Using Stator Current, and Voltage to Cancel Electrical Noise by Ibrahim, Ali, Bonnardot, Frédéric, Mohamed El Badaoui, Guillet, François

“…This paper investigates the detection of a bearing defect in an asynchronous machine by analysing the electric signals. For this purpose, it is considered that…”
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Algorithm Comparison for Real Time Knock Detection by Ker, S., Bonnardot, F., Duval, L.

“…This paper addresses the implementation and comparison of algorithms for real-time knock detection. Knock is an unwanted abnormal combustion process that may…”
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Discrete random sampling: Theory and practice in machine monitoring by Hajar, Mayssa, El Badaoui, Mohamad, Raad, Amani, Bonnardot, Frederic

“…•A very first real application of RS on vibration to evaluate its potential in machine monitoring.•A simulation study to evaluate the effect of RS parameters…”
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Extraction of second-order cyclostationary sources- : Aapplication to vibration analysis by BONNARDOT, Frédéric, RANDALL, R. B, GUILLET, Francois

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Blind separation of convolved cyclostationary processes by Antoni, J., Guillet, F., El Badaoui, M., Bonnardot, F.

“…A non-parametric method is presented for the blind separation of convolved cyclostationary processes such as those typically observed at the output of MIMO…”
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New second order cyclostationary analysis and application to the detection and characterization of a runner's fatigue by MAIZ, Sofiane, ELBADAOUI, Mohamed, BONNARDOT, Frederic, SERVIERE, Christine

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Techniques to estimate the instantaneous frequency with an aim of diagnosis induction machines faults by Ibrahim, A., Guillet, F., El Badaoui, M., Bonnardot, F.

“…In this work we present a new techniques to detect a mechanical faults in asynchronous machines by exploiting the instantaneous frequencies estimated starting…”
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Enhancement of second-order cyclostationary signals: application to vibration analysis by Bonnardot, F., Antoni, J., Randall, R.B., El Badaoui, M.

“…The paper addresses the issue of extracting the pure second-order cyclostationary (CS2) part of a signal. This proves very useful in many situations where the…”
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