Institut de Recherche de l’École navale (IRENAV): Recent submissions

Now showing items 211-217 of 271

    • A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine 
      Communication avec acte
      EL BOUCHIKHI, EL HOUSSIN; CHOQUEUSE, Vincent; BENBOUZID, Mohamed; CHARPENTIER, Jean-Frederic; BARAKAT, Georges (IEEE, 2011)
      To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect ...
    • An experimental study of boundary-layer transition induced vibrations on a hydrofoil 
      Article dans une revue avec comité de lecture
      DUCOIN, Antoine; ccASTOLFI, Jacques Andre; GOBERT, Marie-Laure (Elsevier, 2012)
      This paper aims at characterizing experimentally laminar to turbulent transition induced vibrations. Here, the transition is known to be triggered by a Laminar Separation Bubble that results from a laminar separation of ...
    • T-wave generation and propagation: A comparison between data and spectral element modeling 
      Article dans une revue avec comité de lecture
      JAMET, Guillaume; GUENNOU, Claude; GUILLON, Laurent; MAZOYER, Camille; ROYER, Jean-Yves (Acoustical Society of America, 2013)
      T-waves are underwater acoustic waves generated by earthquakes. Modeling of their generation and propagation is a challenging problem. Using a spectral element code—SPECFEM2D, this paper presents the first realistic ...
    • An Energy Management System of a Fuel Cell/Battery Hybrid Boat 
      Article dans une revue avec comité de lecture
      ccHAN, Jingang; CHARPENTIER, Jean-Frederic; TANG, Tianhao (MDPI, 2014)
      All-electric ships are now a standard offering for energy/propulsion systems in boats. In this context, integrating fuel cells (FCs) as power sources in hybrid energy systems can be an interesting solution because of their ...
    • Range dependent sediment sound speed profile measurements using the image source method 
      Article dans une revue avec comité de lecture
      PINSON, Samuel; GUILLON, Laurent; HOLLAND, Charles (Acoustical Society of America, 2013)
      This paper presents a range dependent sediment sound speed profile measurement obtained using the image source method. This technique is based on the analysis of the seafloor reflected acoustic wave as a collection of image ...
    • Cross-Spectral Analysis of Midfrequency Acoustic Waves Reflected by the Seafloor 
      Article dans une revue avec comité de lecture
      GUILLON, Laurent; HOLLAND, Charles; BARBER, Christopher (Institute of Electrical and Electronics Engineers, 2011)
      Direct path measurements of a single-bottom interacting path on a vertical array are used to probe the seabed structure. The phase of the cross-spectrum, commonly used in engineering acoustics, permits examination of the ...
    • Sound speed profile characterization by the image source method 
      Article dans une revue avec comité de lecture
      PINSON, Samuel; GUILLON, Laurent (Acoustical Society of America, 2010)
      This paper presents the first results of an imaging technique that measures the geoacoustic structure of a seafloor in shallow water areas. The devices used were a broadband 100 Hz–6 kHz acoustic source towed by a ship ...