Patents by Inventor Yvon Cloarec

Yvon Cloarec 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).

  • Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure
    Patent number: 7029227
    Abstract: A method of reducing vibration in a structure comprising at least one rotor (101j) and a fixed set of sources of disturbance (102j) liable to give rise to disturbances in the fluid flow (11) that cause the rotor to vibrate, the method comprising a step of distributing the fixed sources of disturbance angularly in non-uniform manner so as to reduce the amplitude of excitation as seen by the rotor, and a step which consists in verifying that the maximum amplitude of a response of the rotor to the excitation is obtained by: determining a first signal whose Fourier transform corresponds to the frequency spectrum of the excitation in the event of the fixed sources of disturbance being distributed in a predetermined angular distribution; by modifying the first signal into a second signal adapted to said selected angular distribution for the fixed sources of disturbance; by determining the frequency spectrum of the excitation by calculating the Fourier transform of the second signal; and by calculating the respon
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: April 18, 2006
    Assignee: Snecma Moteurs
    Inventors: Marc Berthillier, Yvon Cloarec, Eric Seinturier
  • Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure
    Publication number: 20040175260
    Abstract: A method of reducing vibration in a structure comprising at least one rotor (101j) and a fixed set of sources of disturbance (102j) liable to give rise to disturbances in the fluid flow (11) that cause the rotor to vibrate, the method comprising a step of distributing the fixed sources of disturbance angularly in non-uniform manner so as to reduce the amplitude of excitation as seen by the rotor, and a step which consists in verifying that the maximum amplitude of a response of the rotor to the excitation is obtained by:
    Type: Application
    Filed: November 10, 2003
    Publication date: September 9, 2004
    Inventors: Marc Berthillier, Yvon Cloarec, Eric Seinturier