摘要:
A process for relieving stresses in an end fitting (14) attached to a body (12) in the form of a longitudinal part such as a tube, with the end fitting including a yoke (18) with two arms (18-1, 18-2), each equipped with a hole (20-1, 20-2) designed to work with a pin (24), is characterized in that a removal of material upstream from each of the holes (20-1, 20-2) is carried out.
摘要:
The invention relates to a reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, characterized in that said reinforcement is produced by stacking at least two parts produced by pultrusion. A reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, is characterized in that the reinforcement is produced by stacking at least two parts produced by pultrusion.
摘要:
A high-voltage cable includes a composite core surrounded by an electrical conductor, wherein it is limited to 95° C.±5%, and the electrical conductor is made of hard aluminum with an aluminum ratio Ra of between 6 and 19, wherein Ra is calculated according to the following rule: Ra=Sc/Sa×100, where Sc is the cross-section of the composite core of the cable and Sa is the cross-section of the conductive aluminum of the cable. This makes it possible to obtain a cable with the same mass as current low-temperature cables, the same external diameter, at least the same mechanical strength and equivalent thermal expansion. This results in a cable in which the aluminum cross-section is increased by between 20% and 40% with the same mass.
摘要:
A length-adjustable connecting rod is disclosed having a longitudinal axis comprising a connecting-rod shank provided with at least one internal thread, at least one connecting element comprising an external thread cooperating with the internal thread of the connecting-rod shank, the screwing or unscrewing of the connecting-rod shank with respect to the connecting element allowing the length of the connecting rod to be adjusted, and at least one resisting torque device between the connecting-rod shank and the connecting element, the resisting torque device comprising at least one pressing element and a bearing element, the pressing element exerting a force on the bearing element that opposes a resistance to the rotational movement of the connecting-rod shank with respect to said connecting element. The bearing element is integral with the connecting element and the pressing element is integral with the connecting-rod shank.
摘要:
The invention relates to a reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, characterized in that the reinforcement is produced by stacking at least two parts produced by pultrusion. A reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, is characterized in that the reinforcement is produced by stacking at least two parts produced by pultrusion.
摘要:
A profiled member having two faces and having at least one tear strip with two edges arranged on and adhered to one face of said profiled member, the tear strip having at least one non-adhered edge. The non-adhered edge makes it possible not only to more easily take hold of and remove the tear strip, but also prevents a piece of the tear strip from remaining on the profile member and hindering the adhering of the profiled members to each other. The two edges of the tear strip may be non-adhered, and, when the profile member is covered by a tear strip on each face, the two tear strips are each non-adhered on at least one side. The profile member can be either flat or circular.
摘要:
A method for producing a connecting part (30), such as a connecting rod for an aircraft, made from a composite material, the connecting part including at least one hollow body (32) and at least one yoke (34) at each of the ends (36) of the body (32), is characterized in that the body (32) and the yokes (34) of the connecting part (30) are produced from a single section (P, P1, P2) made from a composite material and obtained using a continuous production process.
摘要:
A process for producing a bonded connection between a first and a second part, with a length of superposition around a longitudinal axis, these parts being subjected to forces in at least one longitudinal direction, includes producing a bonded connection having at least one interior and/or exterior adhesive joint, over a portion of the length between the parts, the joint having a closed or semi-closed cross-section around the longitudinal axis, the thickness of the joint varying from a free edge on the end-fitting side, to the other free edge on the tube side, and following the direction of forces to which the parts are subjected so as to better distribute the overstresses over at least one part of the length. At least one adhesive joint is produced, having in the longitudinal direction a large thickness facing each of its two free edges relative to the thickness in its median part.
摘要:
Attachment device including: —a conical insert in the form of a truncated cone, an internal ring which is provided with a recess in the form of a truncated cone the diameter of which narrows in the direction of the interior of the tube and the angle of which is equal to the angle of the truncated cone of the conical insert, and an external ring comprising a cylindrical portion the internal diameter of which is substantially equal to the external diameter of the tube, the external ring comprising a shoulder which partially closes an end of the external ring and which has a circular opening, the shoulder comprising an annular internal face which is intended to abut the end face of the tube and the transverse end face of the internal ring located at the side of the end of the tube.
摘要:
The invention relates to a reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, characterized in that said reinforcement is produced by stacking at least two parts produced by pultrusion. A reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, is characterized in that the reinforcement is produced by stacking at least two parts produced by pultrusion.