Preliminary feasibility study of a speed estimator for piezoelectric actuators used in forging processes
Communication avec acte
Auteur
GIRAUD, Frédéric 
GIRAUD-AUDINE, ChristopheRésumé
In this paper the feasibility of a speed estimator for a piezoelectric actuator used in a forging process is studied. It is based on a simplified linear model and its robustness is tested using a more complex model that include the hysteresis effects. The preliminary results proves that the concept is feasible despite the non-linearities, provided that some parameters of the actuator are known.
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Communication avec acte; ; ; ;GIRAUD-AUDINE, Christophe (IEEE, 2014)
This paper deals with an unidimensional analytical modelling of the vibratory behaviour of a rectangular beam excited by several piezoelectric ceramics glued on its lower face. The establishment of the equations of motion ...
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Article dans une revue avec comité de lectureGIRAUD-AUDINE, Christophe; ; ; (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 ...
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Communication avec acte; ; ; ;GIRAUD-AUDINE, Christophe (IEEE, 2015)
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Communication avec acte; ; ; ;GIRAUD-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 ...
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Communication avec acte; ; ; ;GIRAUD-AUDINE, Christophe (IEEE, 2015)
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