| 摘要 |
The present disclosure relates to a wing. More specifically, aspects of the invention relate to a variable shaped wing movable incrementally between a neutral configuration and a deformed configuration, wherein the wing takes a reflexed camber aerofoil section shape in the deformed configuration. The wing includes a first aerofoil segment and a second aerofoil segment having ends connected or fixed to one another at opposing neutral leading and trailing edges and spaced apart from one another along their lengths across a neutral mean camber line extending between the neutral leading and trailing edges to form a neutral aerofoil section of the wing. One or more actuators deform the wing between the neutral aerofoil section and a reflexed camber aerofoil section, with the first and second aerofoil segments being resilient to bias the wing towards an initial at rest aerofoil section. To cause the aerofoil section to take a reflexed camber aerofoil section, the critical buckling load of the aerofoil segments is greater than a compressive load generated in the aerofoil segments by the actuator deforming the wing between the neutral aerofoil section and the reflexed camber aerofoil section. In use, the wing is deformed by the actuator displacing two points on one of the aerofoil segments to generate the compressive load in at least such aerofoil segment. The ability of such aerofoil segment(s) to resist the compressive load causes the segment(s) to adopt a form with a point of inflection, thereby causing the wing to form the reflexed camber aerofoil section. |
