Now showing items 4081-4087 of 6450

    • Communication avec acte
      ZAHR, Hussein; ASLAN, Bassel; ccSEMAIL, Eric; ccSCUILLER, Franck (IEEE, 2016)
      The paper studies the impact of first and third current-harmonic repartition in a five-phase Permanent Magnet machine whose Electromotive Forces (emfs) have first and third harmonics of the same amplitude. With a five-phase ...
    • Article dans une revue avec comité de lecture
      HERVAS, Isabel; VAN GORP, Adrien; BENTOUMI, Mohamed; THUAULT, Anthony; IOST, Alain; ccMONTAGNE, Alex (Elsevier, 2016)
      Numerous methods have been proposed to estimate the indentation fracture toughness Kic for brittle materials. These methods generally uses formulæ established from empirical correlations between critical applied force, or ...
    • Article dans une revue avec comité de lecture
      ccGIRAUD-AUDINE, Christophe; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty (IOP Publishing, 2015)
      Stress in a piezoelectric material can be controlled by imposing an electrical field. Thanks to feedback, this electrical field can be a function of some strain-related measurement so as to confer on the piezoelectric ...
    • Communication avec acte
      GHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2015)
      The control of the vibration amplitude, and the resonance frequency tracking for ultrasonic transducer have been established. However, some applications require to control the vibration amplitude and its relative phase at ...
    • Communication avec acte
      GHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2015)
      This paper presents a new method to produce and control the vibration amplitude and direction of a travelling wave in a finite beam, using multi-modal approach. A closed loop control of the transducer vibration is applied ...
    • Article dans une revue avec comité de lecture
      FALL, Ousmane; CHARPENTIER, Jean-Frederic; LETELLIER, Paul; ccSEMAIL, Eric; ccKESTELYN, Xavier; NGUYEN, Ngac Ky (Elsevier, 2016)
      This paper proposes a novel variable speed control strategy of a particular 5-phase Permanent Magnet Synchronous Generator (PMSG) in healthy and faulty modes by taking into account the constraints on voltages and currents. ...
    • Article dans une revue avec comité de lecture
      ccBALAN, Tudor; LEMOINE, Xavier; MAIRE, Eric; HABRAKEN, Anne-Marie (Elsevier, 2015)
      This paper is a contribution to the phenomenological modeling of damage evolution in DP steels in the framework of Gurson's approach. It is based on recent results of X-ray tomography in-situ tensile tests and subsequent ...