US 12,077,291 B2
System of morphing control surface for aircraft wing
Cristobal Calatayud, Boulogne Billancourt (FR); Benjamin Trarieux, Toulouse (FR); and Brice Albert, Toulouse (FR)
Assigned to Airbus Operations (S.A.S.), Toulouse (FR)
Filed by Airbus Operations (S.A.S.), Toulouse (FR)
Filed on Nov. 22, 2022, as Appl. No. 17/992,509.
Claims priority of application No. 2112450 (FR), filed on Nov. 24, 2021.
Prior Publication US 2023/0159153 A1, May 25, 2023
Int. Cl. B64C 3/44 (2006.01); B64C 3/26 (2006.01); B64C 9/18 (2006.01)
CPC B64C 3/44 (2013.01) [B64C 3/26 (2013.01); B64C 9/18 (2013.01); B64C 2003/445 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A morphing control surface system for an aircraft wing, the wing comprising an upper plane and a lower plane, comprising:
an upper flexible skin configured to be fixed to the wing in an extension of the upper plane of the wing;
a lower flexible skin configured to be movable in an extension of the lower plane of the wing via a plane-to-plane link, the lower flexible skin being fixed to the upper flexible skin along a trailing edge of the control surface;
at least one actuator configured to generate a displacement of the lower flexible skin with respect to the lower plane of the wing, and
the displacement of the lower flexible skin configured to cause a curvature of the upper flexible skin and a curvature of the lower flexible skin, the curvature of the upper flexible skin and the curvature of the lower flexible skin having a concavity oriented in a same direction,
wherein the upper flexible skin has a greater thickness in a zone situated at the trailing edge and in a zone situated at the fixing of the upper flexible skin to the upper plane of the wing than in a central zone situated between the zone situated at the trailing edge and the zone situated at the fixing; and
wherein a thickness ratio between the zone situated at the trailing edge and the central zone is between 2 and 3, and a thickness ratio between the zone situated at the fixing and the central zone is between 4 and 5.