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US 11,591,065 B2Granted
Noise attenuation panel
AssigneeFokker Aerostructures B.V.
InventorsMarcel Roggeveen, Remco Gijseman, Wilson Wong
Life of this patent
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Abstract
A noise attenuation element can be arranged for connection to an air directing structure such as a wing flap. The element has a non-uniform lattice density across at least a portion of the body of the element.
Claims5
A flap side edge module for attachment to a wing flap, the module comprising:
- a leading edge;
- a trailing edge;
- and
- a body portion located between the leading edge and the trailing edge, the body portion comprising a central portion and two transition regions, wherein the body portion is formed of a lattice structure wherein the central portion comprises a first lattice density throughout, wherein the body portion is connected to each of the leading edge and the trailing edge by a respective one of the two transition regions, wherein each transition region has a lattice structure density gradient such that a lattice density varies between a second lattice density adjacent to regions proximate to a leading edge or trailing edge and the first lattice density at a portion of the transition region adjacent to the central portion, wherein the first lattice density is lower than the second lattice density.
1 more element
Dependencies are inferred from the claim text.