| 摘要 |
A blade (20) for a wind turbine (10) generally includes a shell body (26) extending between a leading edge (30) and a trailing edge (32), an inner spar (36) supporting at least a portion of the shell body (26), and a damping element (42) coupled to the inner spar (36). The damping element (42) is configured to adjust the structural pitch of the blade (20) to dissipate edgewise vibrations of the blade (20). The damping element (42) may be incorporated into the spar (36) upon manufacture of the blade (20) or installed as a retro-fit modification to existing blades (20).
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