초록 ▼

An aerodynamic structure (9) is provided for example for a landing flap. The aerodynamic structure comprises an outer skin (11), which is deformable in cross section longitudinal to an air stream direction (12). The outer skin (11) has deformable ribs (1) with changeable cambering for stiffening the

An aerodynamic structure (9) is provided for example for a landing flap. The aerodynamic structure comprises an outer skin (11), which is deformable in cross section longitudinal to an air stream direction (12). The outer skin (11) has deformable ribs (1) with changeable cambering for stiffening the stressed skin in cross section longitudinal to the air stream direction. The ribs (1) comprise a closed flexible external girdle (2). The external shape of the external girdle (2) corresponds to the course of the outer skin (11). Furthermore, the ribs (1) comprise a plurality of stiffening struts (3) of constant length, which engage the external girdle (2) at both of their ends.

대표청구항 ▼

[ We claim:] [1.] An aerodynamic structure for use in a landing flap, an airfoil, an elevator unit and a rudder unit, said aerodynamic structure comprising:at least one outer skin having a course and being actively deformable in cross section longitudinal to an air stream direction; anda plurality o

[ We claim:] [1.] An aerodynamic structure for use in a landing flap, an airfoil, an elevator unit and a rudder unit, said aerodynamic structure comprising:at least one outer skin having a course and being actively deformable in cross section longitudinal to an air stream direction; anda plurality of actively deformable ribs stiffening said outer skin in cross section longitudinal to said air stream direction,each of said actively deformable ribs being of changeable cambering and including a closed flexible external girdle and a plurality of stiffening struts of constant length,each of said external girdles having an outer shape determining the course of said outer skin,each of said stiffening struts of constant length at both ends being connected to one of said external girdles.