Ateca

Airbus Operations (s.a.s.)

Eurocopter

Saint-gobain Glass France

Snecma

Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Hispano Suiza Aerostructures

Airbus Operations Gmbh

Osmin Regis Delverdier

Philippe Jean Vie

Marc Francis Vincent Dussac

Thomas Tondu

Franck Flourens

Marie-Hélène Debrus

Catherine Unfer

Jacques Michel Julliard

Georges Jean Riou

Hugo Canales

Patrick Gonidec

Eric Lecossais

Alain Dravet

Philippe Bousquet

Stefan Moal

Bernard Louis Le Barazer

Jacques Julliard

Frank Flourens

A laminated glazing includes a first and a second glass sheet that are bonded by a first interlayer adhesive layer, a peripheral zone of the laminated glazing being covered by a stepped metal element, the laminated glazing including a heating network of wires and/or a heating electrically conductive layer that is provided with busbars, a plurality of probes and other optional electrical elements that are linked to an electrical power supply via the connector of the laminated glazing, an electrical conductor linking the stepped metal element to a busbar of the heating network of wires and/or of the heating electrically conductive layer; and/or to the cap of the connector of the laminated glazing, which is linked to the ground of the structure for mounting the laminated glazing; and/or to a contact of the connector.

Suppression of electrostatic discharge noise by means of conduction between a tiered metal element and the wiring system of a glazing unit

A laminated glazing includes a first and a second glass sheet that are bonded by a first interlayer adhesive layer, a peripheral zone of the laminated glazing being covered by a stepped metal element, a window press that is rigidly connected to the structure for mounting the laminated glazing making contact with the laminated glazing, so as to hold the laminated glazing secure to its mounting structure, an electrical conductor linking the stepped metal element and the structure for mounting the laminated glazing by way of the window press.

Electrostatic discharge noise suppression by conduction between a stepped metal element and the pane retainer

An acoustic measurement device in an air flow and subjected to a noise source, the device including: a base having a surface in contact with the air flow, a first microphone which is mounted flush with the surface, a second and a third microphone which are mounted on either side of the first microphone, each, at the bottom of a cavity opening onto the surface, and where each of the second and third microphones is covered with a noise-reducing element, the second and the third microphones being assembled at a distance from the first microphone that is greater than the correlation length of the turbulent phenomenon in the frequency band studied, and a computer or processor provided for computing the power spectrum of the noise source from the signals detected by the three microphones.

Acoustic measurement device in an air flow

A soundproofing panel having a core sandwiched between a solid wall and a porous wall. The core being connected to the walls and having partitions extending in the thickness direction between the two walls so as to form cells. Each cell containing at least one sound energy dissipating layer constituted by hollow spherical beads having mutually contacting walls that are porous and micro-perforated, and being held in position in the thickness direction between the two walls by nets that are secured to the partitions.

Soundproofing panel with beads, and a method of manufacture

A damping structure includes a member defining an internal cavity; an aggregate which includes at least solid bodies in contact and which completely fills the internal cavity; a rigid plate for closing off the internal cavity; and an elastic element which exerts elastic pressure on the rigid plate so as to constrain the aggregate. The member defining the cavity may be elongate with the internal cavity being formed longitudinally inside the member. At least some of said solid bodies may be hollow or solid, compact, made of different materials, of different shapes, and/or of different sizes.

Damping structure and applications

The invention concerns a sound-proofing panel, in particular a rotorcraft structural or lining panel: the sound-proofing panel () comprises at least two opposite plates () forming between them a closed internal space (), and an aggregate () including at least solid elements () in contact and which fills entirely said internal space ().

Soundproofing panel, in particular structural or lining panel for a rotorcraft

A soundproofing panel comprises a honeycomb core sandwiched between a solid skin and a porous skin, the cells of the honeycomb being divided in the direction of its thickness into at least two resonant cavities by a least one partition which is traversed by passages interlinking the cavities. The partitions are formed by a plurality of hollow microbeads having porous walls, the microbeads being bonded to one another and to the walls of the honeycomb at their points of contact. Such a soundproofing panel combines high performance in terms of linearity as a function of the level of sound excitation, attenuation band, bulk and mechanical strength.

Soundproofing panel and method of producing said panel

Growing community of inventors

Montastruc la Conseillere, France

Osmin Regis Delverdier