An aeroelastic analysis of the Darrieus wind turbine

Journal Article · Tue Nov 01 00:00:00 EST 1983 · J. Energy; (United States)

DOI:https://doi.org/10.2514/3.62688· OSTI ID:6545131

Meyer, E E; Smith, C E

The flutter stability of a single Darrieus wind turbine blade spinning in still air is investigated. The blade is modeled as a thin, uniform beam pinned to the rotor shaft, with aerodynamic forces accounted for using strip theory. Eliminating the spatial dependence using cubic B-splines results in a system of algebraic characteristic equations from which the stability of linear motions of the blade at any rotation rate may be inferred. The two most dangerous flutter modes are characterized for a one-parameter family of blades, and the flutter mechanism is shown to be dominated by gyroscopic coupling between motions in the plane of the blade and normal to the plane of the blade.

• Research Organization: Boeing Commercial Airplane Company, Seattle, WA
• OSTI ID: 6545131
• Journal Information: J. Energy; (United States), Vol. 7:6
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
DARRIEUS ROTORS
AERODYNAMICS
EQUATIONS OF MOTION
ROTATION
AIR FLOW
ALGEBRA
CALCULATION METHODS
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID FLOW
FLUID MECHANICS
GAS FLOW
MATHEMATICS
MECHANICS
MOTION
PARTIAL DIFFERENTIAL EQUATIONS
ROTORS
170602* - Wind Energy Engineering- Turbine Design & Operation