Airbus Operations Gmbh

Airbus Deutschland Gmbh

Benjamin Grenzing

Frank Cordes

Henning Scheel

Rainer Müller

Christian Thomas

Jens Thomas Mueller

Mirko Ginovski

Michael Grabow

Jens MÜLLER

A panel for cladding a ceiling or wall in a cabin, especially the cabin of a passenger aircraft, in which a board is laminated on both sides with a cover layer which is made of fibrous material or fabric, which is impregnated with resin or a thermoplastic material, and is cured under the effects of pressure and temperature, said board having at least one core with a honeycomb structure formed by a large number of walls, said walls being compressed or bent in a pre-defined region of the board by between 5% and 50%.

Panel and method for producing a panel

The present invention provides a flat speaker, in particular in the aerospace sector, with a panel for generating acoustic signals by vibration of the same, and a vibration exciter which is connected to a panel and excites this to vibrate. Here the panel has an edge stiffening. This provides the panel with the required stiffness, particularly against hand pressures, but at the same it guarantees high energy efficiency of the flat speaker.

Flat speaker

The invention pertains to an insulation structure for thermally and acoustically insulating an aircraft that features at least one heavy layer, wherein the insulation structure according to the invention is characterized in that the insulation structure comprises an additional absorption layer, in that the heavy layer is perforated at least in certain areas, and in that the perforated area ratio of the heavy layer is adapted in such a way that the heavy layer is essentially transparent to sound for frequencies below a double-wall frequency of the insulation structure. This makes it possible to dampen sound with low frequencies below the double-wall frequency as effectively as possible.

Insulation design for thermal and acoustic insulation of an aircraft

A loudspeaker system for an aircraft cabin for passengers has a support structure, which includes multiple flexible flat elements, forming the internal walls of the cabin, and fastening devices for fastening flat elements to the support structure, so that the flat elements may oscillate. At least one acoustic driver is connected to one or more flat elements, to induce a bending movement in the one or more flat elements. The particular flat element may oscillate as an acoustic diaphragm. The acoustic driver has a film-shaped piezoelectric exciter, which is bonded flatly to the flat element. The flat element bonded to an exciter has a first cover layer, a second cover layer, and a core layer between them. The core layer is subdivided in a plane parallel to the first and second cover layers by a horizontal incision in at least one predefined area.

Growing community of inventors

Hamburg, Germany

Benjamin Grenzing