A method for forming a fiber-reinforced thermoplastic acoustic panel (300) may comprise: stacking plies of thermoplastic composite sheets to a first thickness to form a top sheet (320); stacking plies of thermoplastic composite sheets to a second thickness to form a backskin (330); staking plies of thermoplastic composite sheets to a third thickness to form a stiffening member (312); forming the top sheet (320) in a first contour; forming the backskin (330) in a second contour, the second contour being different from the first contour; forming the stiffening member (312) comprising a shape having a plurality of peaks (314) and troughs (316); bonding the stiffening member (312) to the top sheet (320) and the backskin (330); and perforating the top sheet (320).
CORRUGATED ACOUSTIC STIFFENING DEVICES AND METHODS
GEWELLTE AKUSTISCHE VERSTEIFUNGSVORRICHTUNGEN UND VERFAHREN
DISPOSITIFS ET PROCÉDÉS DE RAIDISSEMENT ACOUSTIQUE ONDULÉ
08.03.2023
Patent
Elektronische Ressource
Englisch
IPC: | F02K JET-PROPULSION PLANTS , Strahltriebwerke / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Corrugated stiffening devices utilizing peaks and valleys and methods of manufacture
Europäisches Patentamt | 2024
|CORRUGATED STIFFENING DEVICES UTILIZING PEAKS AND VALLEYS AND METHODS OF MANUFACTURE
Europäisches Patentamt | 2023
|CORRUGATED STIFFENING DEVICES UTILIZING PEAKS AND VALLEYS AND METHODS OF MANUFACTURE
Europäisches Patentamt | 2024
|