TY  - BOOK
AU  - Kaza,Krishna Rao V.
ED  - National Aeronautics and Space Administration
ED  - United States Department of Energy
TI  - Nonlinear aerolastic equations of motion of twisted, nonuniform, flexible horizontal-axis wind turbine blades / 
T2  - DOE/NASA
PY  - 1980///
CY  - Cleveland : 
PB  - National Aeronautics and Space Administration, 
KW  - ENERGIA EOLICA
KW  - TURBINAS EOLICAS
KW  - PRODUCCION DE ENERGIA
KW  - CONVERSION DE ENERGIA
KW  - ECUACIONES NO LINEALES
N1  - Informe/número de patente NASA CR-159502; DOE/NASA/3139-1; The second-degree nonlinear equations of motion for a flexible, twisted, nonuniform, horizontal axis wind turbine blade were developed using Hamilton's principle. A mathematical ordering scheme which was consistent with the assumption of a slender beam was used to discard some higher-order elastic and inertial terms in the second-degree nonlinear equations. The blade aerodynamic loading which was employed accounted for both wind shear and tower shadow and was obtained from strip theory based on a quasi-steady approximation of two-dimensional, incompressible, unsteady, airfoil theory. The resulting equations had periodic coefficients and were suitable for determining the aeroelastic stability and response of large horizontal-axis wind turbine blades
UR  - https://ntrs.nasa.gov/citations/19800018275
ER  -