Abstract: The invention relates to a platform (28) for the take-off and landing of an aircraft (12) for generating electric power by means of a generator (24) and comprising: a stationary support (30); a receiving structure (32) that is intended to accommodate the aircraft (12) and is connected to the stationary support (30); The receiving structure (32) is mounted pivotably relative to the stationary support (30) by means of an orientable turntable (38) so as to allow the receiving structure (32) to be positioned according to the wind direction. The receiving structure (32) for accommodating the aircraft (12) comprises an air-permeable net (34) that is stretched between arms (36) belonging to the receiving structure (32).

Abstract: A drone chassis including an external structure that deforms elastically in bending, and a set of cables connecting at least one support, intended to support a functional element of the drone, to the external structure. The set of cables includes elastic cables deforming elastically in traction under a tensile stress above a natural deformation threshold, the set of cables being attached at several points on the external structure, referred to as attachment points, to hold the at least one support in a stable position with respect to the external structure. The elastic cables are attached under stress by applying an initial tensile stress and maintains the initial tensile stress by attaching to the external structure. An additional tensile stress applied to the cables attached under stress causes a deformation under traction of the cables only as from a threshold that is above the natural deformation threshold of the cables.

Abstract: A method for manufacturing a part comprises the following steps: providing a molding element (100) and an airtight flexible sheet (200) consisting of a film comprising a dry layer (201) of a paint-type material integral with a backing (202) provided with anchoring arrangements on the side opposite to the layer of paint-type material, the backing facing towards the molding element and the sheet being unsupported and peripherally connected to the rigid molding element in an airtight manner so that they between them define a molding zone the shape of which is generally defined by the molding element, introducing a solidifiable molding material in a viscous state into the molding zone, prior to, simultaneously with or subsequent to said introduction of the molding material, applying a vacuum (120-122) in the molding zone, causing the molding material (R) to solidify, and extracting from the molding zone an article (P) comprising the solidified molding material in which the film is anchored, where the dry layer

Abstract: The invention relates to a platform (28) for the take-off and landing of an aircraft (12) for generating electric power by means of a generator (24) and comprising: a stationary support (30); a receiving structure (32) that is intended to accommodate the aircraft (12) and is connected to the stationary support (30); The receiving structure (32) is mounted pivotably relative to the stationary support (30) by means of an orientable turntable (38) so as to allow the receiving structure (32) to be positioned according to the wind direction. The receiving structure (32) for accommodating the aircraft (12) comprises an air-permeable net (34) that is stretched between arms (36) belonging to the receiving structure (32).

Abstract: A drone chassis including an external structure that deforms elastically in bending, and a set of cables connecting at least one support, intended to support a functional element of the drone, to the external structure. The set of cables includes elastic cables deforming elastically in traction under a tensile stress above a natural deformation threshold, the set of cables being attached at several points on the external structure, referred to as attachment points, to hold the at least one support in a stable position with respect to the external structure. The elastic cables are attached under stress by applying an initial tensile stress and maintains the initial tensile stress by attaching to the external structure. An additional tensile stress applied to the cables attached under stress causes a deformation under traction of the cables only as from a threshold that is above the natural deformation threshold of the cables.

Abstract: Device for measuring the endogenous deformations of a structure of materials, during the transition of said structure from a liquid phase to a solid phase, comprising: a uniaxial test body suitable for being embedded in the structure; a deformation measurement fiber attached to the interior of the test body; a system connected to the measurement fiber and suitable for detecting signals representative of the deformations of the measurement fiber and for determining the endogenous deformations from these signals and from known mechanical properties of the materials of the test body, the test body having a rigidity comprised between 2 and 5 gigapascals.

Abstract: Device for measuring the endogenous deformations of a structure of materials, during the transition of said structure from a liquid phase to a solid phase, comprising: a uniaxial test body suitable for being embedded in the structure; a deformation measurement fiber attached to the interior of the test body; a system connected to the measurement fiber and suitable for detecting signals representative of the deformations of the measurement fiber and for determining the endogenous deformations from these signals and from known mechanical properties of the materials of the test body, the test body having a rigidity comprised between 2 and 5 gigapascals.