公开(公告)号：US20240035438A1

公开(公告)日：2024-02-01

申请号：US18250168

申请日：2021-12-22

Applicant: LM WIND POWER A/S

Inventor： Andreas HERRIG ,  Benjamin Patrick HALLISSY

IPC: F03D1/06

CPC classification number: F03D1/06495 ,  F05B2260/964

Abstract: The present disclosure relates to dampening of predominantly edgewise vibrations in a wind turbine blade. This is achieved by a wind turbine blade comprising one or more bump airfoil sections, each bump airfoil section being characterised in that for any airfoil within the bump airfoil section, the airfoil's pressure side profile yp has particular geometric properties near the trailing edge of the airfoil. Furthermore, a total length of all bump airfoil sections in the blade is at most 30% of the length of the blade, and at least half of the total length of all bump airfoil sections in the wind turbine blade is provided by one or more bump airfoil sections located spanwise in the outermost 30% of the blade.