3D PRINTED ACOUSTIC PANEL WITH LATTICE STRUCTURE SUPPORT LAYER

In some examples, acoustic panels (such as for gas turbine engines) and techniques for forming acoustic panels. In some examples, the acoustic panel including a coversheet including an outer face, an inner face, and a plurality of apertures extend from the outer face to the inner face. The acoustic...

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Bibliographische Detailangaben
Hauptverfasser:	Hodgson, Benedict N, Higbie, Jeff
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	In some examples, acoustic panels (such as for gas turbine engines) and techniques for forming acoustic panels. In some examples, the acoustic panel including a coversheet including an outer face, an inner face, and a plurality of apertures extend from the outer face to the inner face. The acoustic panel also includes a 3D-printed support layer including a lattice structure formed at least partially of a polymer, the lattice structure defining a plurality of cells of the support layer, wherein a first side of the support layer is coincident with the inner face of the coversheet.