Patents by Inventor Emmanuel MOULIN

Emmanuel MOULIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for controlling the integrated health of a mechanical structure by diffuse elastic waves
    Patent number: 11460450
    Abstract: A method for monitoring the structural health of a structure that supports guided propagation modes of elastic waves, includes the following steps: a) acquiring an ambient noise propagating through the structure by means of at least one pair of non-collocated elastic-wave sensors; b) estimating a function representative of an impulse response of the structure for elastic propagation between the constituent sensors of said pair; c) extracting at least one dispersion curve of the elastic propagation through the structure by time-frequency analysis of this function representative of an impulse response; and d) estimating at least one parameter indicative of a mechanical property of a constituent material of the structure from the dispersion curve obtained in step c). A system for implementing such a method is also provided.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 4, 2022
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Tom Druet, Bastien Chapuis, Emmanuel Moulin
  • METHOD AND SYSTEM FOR CONTROLLING THE INTEGRATED HEALTH OF A MECHANICAL STRUCTURE BY DIFFUSE ELASTIC WAVES
    Publication number: 20190317056
    Abstract: A method for monitoring the structural health of a structure that supports guided propagation modes of elastic waves, includes the following steps: a) acquiring an ambient noise propagating through the structure by means of at least one pair of non-collocated elastic-wave sensors; b) estimating a function representative of an impulse response of the structure for elastic propagation between the constituent sensors of said pair; c) extracting at least one dispersion curve of the elastic propagation through the structure by time-frequency analysis of this function representative of an impulse response; and d) estimating at least one parameter indicative of a mechanical property of a constituent material of the structure from the dispersion curve obtained in step c). A system for implementing such a method is also provided.
    Type: Application
    Filed: December 15, 2017
    Publication date: October 17, 2019
    Inventors: Tom DRUET, Bastien CHAPUIS, Emmanuel MOULIN