Wind turbine blade tubular spar fabricating method

摘要

A method of fabricating a wind turbine blade tubular spar, wherein the tubular spar extends along a designated axis, is made of reinforced polymer material having fibers arranged in at least two directions, and a polymer matrix incorporating the fibers, and has two caps and two webs; the method including the steps of: molding and cross-linking at least part of a cap or web in composite material; molding and cross-linking an L-shaped structure, which has two opposite parallel flanges, and at least partly incorporates the previously molded, cross-linked cap or web of composite material; repeating the above steps to mold and cross-link a further L-shaped structure; and joining the two cross-linked, L-shaped structures, with the flanges positioned facing in pairs.

主权项

1. A method of fabricating a wind turbine blade tubular spar, wherein the tubular spar: (i) extends along a designated axis, and (ii) is made of a reinforced polymer material including: (A) a plurality of fibers arranged in at least two directions, and (B) a polymer matrix incorporating the fibers, the method comprising:
(a) molding a cap and a web; (b) cross-linking at least part of at least one of: the molded cap and the molded web in a composite material; (c) molding a substantially L-shaped structure which: (i) at least partly incorporates the molded cap and the molded web, and (ii) includes two opposite flanges which are: (A) substantially parallel to each other, (B) substantially parallel to the molded cap, and (C) offset from each other; (d) cross-linking the substantially L-shaped structure in the composite material; (e) repeating (a) to (d) for another substantially L-shaped structure; and (f) joining the two substantially L-shaped structures with the flanges positioned facing in pairs.