Aircraft cabin panel with core recesses for acoustic absorption

US8336804B2 · kind B2 · utility

Assignee

• AIRBUS OPERATIONS LIMITED · DE

Inventors

• Stephan Hoetzeldt · Bremen, DE
• Christian Thomas · Walldorf, DE

Key dates

• Filing date: Dec 16, 2009
• Grant date: Dec 25, 2012
• Expiry date: Nov 3, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2605/18
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An aircraft cabin panel for acoustic absorption in an interior space includes a core layer, a first cover layer and a second cover layer. The first cover layer includes a space-enclosing first surface, and the second cover layer is arranged opposite the first cover layer. The first cover layer is acoustically transparent, and the core layer includes a honeycomb core with a plurality of tubular or honeycomb-like cells that are open throughout the thickness of the honeycomb core. The honeycomb core on the face pointing towards the first cover layer extends parallel to the first cover layer so as to be continuously throughout, and on the face pointing towards the second cover layer comprises recesses which extend over several cells. Absorbers are accommodated in the recesses.