Wind turbine rotor blade, has profile designed so that is displaced in up down and axial directions relative to pitch axis

摘要

#CMT# #/CMT# The aerodynamic blade profile is designed so that it is displaced relative to the length direction of the pitch axis (2) during each turn of the rotor. This displacement is in the up/down direction (4) and axial direction (5). #CMT# : #/CMT# The pitch axis is a line extending at right angles to the interface plane between the rotor blade and turbine. #CMT#USE : #/CMT# For wind turbines. #CMT#ADVANTAGE : #/CMT# The amplitude of the periodic mass momentum or torque strain around the pitch axis is reduced or minimised and the average torque strain around the pitch axis is managed at an optimum level. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows the blade foot near the tip. 2 : Pitch shaft 4 : Up/down displacement 5 : Axial displacement.