Supporting structure with passively adaptable profile

A lifting structure positioned in a fluid flow, the lifting structure including a first wall which has a first outer surface in contact with the fluid flow and a first inner surface opposite to the first outer surface, a second wall which has a second outer surface in contact with the fluid flow and a second inner surface opposite to the second outer surface, a framework connecting the first and second walls, the first and second outer surfaces joining at a trailing edge located downstream of said first and second walls, the first and second walls and the framework being configured to occupy a first state or a second state different from the first state, and wherein the first and second walls and the framework are configured to passively deform elastically, over at least a downstream part of the lifting structure that extends to the trailing edge, between the first state in the absence of external stress and the second state in the presence of external stress induced by the fluid flow due to a change of orientation of the lifting structure and/or of the fluid flow,

• wherein the first and second walls and the framework are configured to deform elastically between the first state and a maximum deformation state, and wherein the lifting structure comprises a stop system to prevent deformation of said first and second walls and framework beyond the maximum deformation state, and
• wherein the lifting structure comprises at least one pivoting connection having a pivoting axis parallel to a longitudinal direction approximately parallel to the trailing edge connecting the stop system and the framework.

A lifting structure positioned in a fluid flow, the lifting structure including a first wall which has a first outer surface in contact with the fluid flow and a first inner surface opposite to the first outer surface, a second wall which has a second outer surface in contact with the fluid flow and a second inner surface opposite to the second outer surface, a framework connecting the first and second walls, the first and second outer surfaces joining at a trailing edge located downstream of said first and second walls, the first and second walls and the framework being configured to occupy a first state or a second state different from the first state, and wherein the first and second walls and the framework are configured to passively deform elastically, over at least a downstream part of the lifting structure that extends to the trailing edge, between the first state in the absence of external stress and the second state in the presence of external stress induced by the fluid flow due to a change of orientation of the lifting structure and/or of the fluid flow,

• wherein the lifting structure comprises a front part, distinct from the first and second walls, connecting them at the leading edge of the lifting structure, of a more deformable material than the first and second walls and/or than the framework, and
• wherein the framework includes flexible links connecting the first and second walls spaced apart from upstream to downstream, and in that the first and second walls and the links are formed from three-dimensional fabric.