Abstract: A vehicle including at least one glass pane, bodywork, and at least one layer of viscoelastic material interposed between the glass pane and the bodywork.
Type:
Grant
Filed:
August 3, 2011
Date of Patent:
December 11, 2012
Assignees:
Renault S.A.S., S.A. Artec Aerospace
Inventors:
Jean-Louis Baroggi, Marc Capdepuy, Regis Dornez, Laurent Miro, Charles Zhang
Abstract: The invention relates to a device to filter and damp the vibrations between a first element subjected to an incident vibratory wave and a second element radiating a filtered vibratory wave. This device comprises an interface structure to transfer vibratory energy constituted by at least one elastic component and at least one dissipative component attached in parallel to the elastic component to ensure the filtration and damping of the incident vibratory wave, the dissipative component being constituted by two separate rigid frames ensuring, punctually or continuously, deflection functions, if required, by a lever arm effect, amplification of the vibratory energies generated by the elastic components towards a dissipative material positioned between them, the dissipative component providing damping for the elastic component.
Abstract: A method for reducing the amplitude of vibration and the pressure wave (6) from a radiating surface (5) and/or an incident surface (3) of a material exposed to mechanical and/or acoustic vibration. The material consists of an anisotropically shaped heavy resilient structure with an internal geometry capable of deflecting and localizing vibration (7) within the structure. A specific material may be incorporated into the areas where vibrational energy is localized in order to convert the vibrational energy into another form of energy.
Type:
Grant
Filed:
April 1, 1998
Date of Patent:
May 30, 2000
Assignee:
Artec Aerospace
Inventors:
Marc Capdepuy, Florent Haddad, Alain Le Mehaute