Abstract:
A wind turbine blade includes a first shell member including a first mating surface along a first edge of the wind turbine blade. Also, the wind turbine blade includes a second shell member including a second mating surface along the first edge of the wind turbine blade, wherein the second mating surface is opposite to the first mating surface. Further, the wind turbine blade includes a bonding material disposed between the first mating surface and the second mating surface and configured to bond the first mating surface to the second mating surface. Moreover, the wind turbine blade includes a constrainer positioned at a desired bond line and coupled to one of the first mating surface and the second mating surface, wherein the constrainer is configured to restrict the bonding material from migrating into an interior cavity of the wind turbine blade.
Abstract:
A polar functional group is added onto a surface of a metallic member. A resin member contains an adhesive functional group. The adhesive functional group and the polar functional group attract each other. A method for joining the metallic member and the resin member to each other includes: heating a junction between the metallic member and the resin member while pressing the metallic member and the resin member against each other with a first load; maintaining temperature of the junction higher than melting temperature of a resin that structures the resin member while pressing the metallic member and the resin member with each other with a second load smaller than the first load; and cooling the junction to temperature lower than the melting temperature while pressing the metallic member and the resin member against each other with a third load larger than the second load.
Abstract:
A bonding device for charging a liquid material into a space between plate-shaped members for bonding them together in situ, in which the liquid material may be prevented from exuding from the space between the plate-shaped members. The bonding device includes pair retaining base members for retaining the pair plate-shaped members facing each other, and a retaining base member movement unit for causing movement of the retaining base members towards and away from each other. The bonding device also includes an illumination unit that illuminates curing light to a photo-curable liquid material charged between the pair plate-shaped members held by the pair retaining base members, and a sensor that detects the wetting spreading state of the liquid material charged between the pair plate-shaped members.
Abstract:
A method for assembling a skin and a flange of a stiffener. The periphery of the contact between the skin and the flange of the stiffener is sealed by applying a bead of adhesive on the flange of the stiffener in contact with the skin. A first and second orifices are made in the skin. The orifices open at the interface between the skin and the flange of the stiffener. The adhesive is injected through the first orifice at the interface between the skin and the flange of the stiffener while keeping the skin in contact with the stiffener until the interface between the skin and the stiffener is completely filled with the adhesive.
Abstract:
A wind turbine blade (16) includes an upper shell member (20) and a lower shell member (22) with an internal cavity (25) therebetween. The shell members are joined with a bond paste (34) at respective bond lines (36, 37) along leading and trailing edges (24, 26) of the blade. A cap (50) is disposed within the internal cavity between the upper and lower shell members along at least one of the leading or trailing edge bond lines. The cap includes a head (52) oriented towards the blade edge and trailing leg portions (56) that span rearward from the head in biased engagement the upper and lower shell members. The cap defines a dam at the bond line against migration of excess bond paste further into the internal cavity. A method is also provided for forming bond lines at the leading or trailing edge with the bond paste caps.
Abstract:
A joining method for joining together a first member in which fiber material is mixed into a first resin, and a second member that includes at least a second resin, includes abutting the first member and the second member together, and softening or melting the first resin of the first member and the second resin of the second member that are adjacent to abutting surfaces of the first member and the second member; and stirring a joint forming portion formed by the softened or melted first resin of the first member and the softened or melted second resin of the second member, and the fiber material included in the softened or melted first resin of the first member, in a direction inclined with respect to the abutting surfaces, and hardening the joint forming portion.
Abstract:
A wind turbine blade includes a first shell member including a first mating surface along a first edge of the wind turbine blade. Also, the wind turbine blade includes a second shell member including a second mating surface along the first edge of the wind turbine blade, wherein the second mating surface is opposite to the first mating surface. Further, the wind turbine blade includes a bonding material disposed between the first mating surface and the second mating surface and configured to bond the first mating surface to the second mating surface. Moreover, the wind turbine blade includes a constrainer positioned at a desired bond line and coupled to one of the first mating surface and the second mating surface, wherein the constrainer is configured to restrict the bonding material from migrating into an interior cavity of the wind turbine blade.
Abstract:
A method for making a wind turbine rotor blade half shell includes arranging a fibrous material in a mold, which has an inner side predetermining an aerodynamic surface of the half shell and has a pinching edge defining the profile of a trailing edge of the half shell. A liquid plastics material surrounding the fibrous material is cured. An insert is arranged in relation to the mold in a predetermined position, in which a surface of the insert and a bordering portion of the inner side of the mold conjointly define an acute angle tapering toward the pinching edge, so that a thinly tapering trailing edge of the half shell is formed between the surface of the insert and the bordering portion.
Abstract:
A method for joining pipes comprising the steps of forming an unadhered pipe assembly comprised of a first pipe having a socket with an inside diameter, where said socket has a mouth that is an open end of the socket, a self-centering bottom and a substantially cylindrical wall with an inlet and an outlet, a second pipe inserted into and abutted against the bottom of the socket of the first pipe, said second pipe having an outside diameter that is less than the inside diameter of the socket, where the difference in diameters defines a gap and extruding an extrudable adhesive through the inlet substantially filing the gap, wherein the adhesive solidifies joining the first and second pipe.
Abstract:
There is provided a joint structure for a fiber reinforced resin and a metal. In the structure, multiple single elements are laminated such that the step-shaped structures are superposed in a thickness direction. Each element is constituted by a metallic material including a step-shaped structure having an end portion that gradually becomes thinner towards an end surface thereof so as to form a step-shaped joint surface, and a fiber reinforced plastic laminated such that an end portion thereof covers the step-shaped structure smoothly. The metallic material and the plastic are adhered, and adjacent elements are joined by superposed surfaces thereof. A main welding portion is formed on an outer end of the metallic material by welding mating surfaces of adjacent metallic materials. A secondary welding portion is formed on the plastic side of the main welding portion on all the metallic materials by welding them in the thickness direction.