Method for manufacturing a wind turbine rotor blade by forming composite material around two moulding cores and after the blade has set removing the cores through openings in the blade

摘要

A method for manufacturing a wind turbine rotor blade 1 is described. Composite material is placed around a moulding core arrangement. The moulding core arrangement includes a first moulding core 23 and a second moulding core 26. The composite material is set forming a wind turbine rotor blade 1. The wind turbine rotor blade 1 includes a root portion 3 at a root end, a tip 2, a leading edge 9, and a trailing edge 11. The trailing edge 11 has a shoulder 4 where the chord length between the leading edge 9 and the trailing edge 11 is maximum, and a shoulder portion 4 extending between the root end and a point on the trailing edge between the shoulder and the tip where the chord length between the leading edge and the trailing edge is 70% of the maximum chord length. The first moulding core 23 is removed from the wind turbine rotor blade 1 through an opening 31 at the root portion 3. The second moulding core 26 is removed from the wind turbine rotor blade 1 through an opening 33 at the shoulder portion 4.