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Evaluation of MOSTAS computer code for predicting dynamic loads in two-bladed wind turbinesCalculated dynamic blade loads are compared with measured loads over a range of yaw stiffnesses of the DOE/NASA Mod-0 wind turbine to evaluate the performance of two versions of the MOSTAS computer code. The first version uses a time-averaged coefficient approximation in conjunction with a multiblade coordinate transformation for two-bladed rotors to solve the equations of motion by standard eigenanalysis. The results obtained with this approximate analysis do not agree with dynamic blade load amplifications at or close to resonance conditions. The results of the second version, which accounts for periodic coefficients while solving the equations by a time history integration, compare well with the measured data.
Document ID
19790044994
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kaza, K. R. V.
(NASA Lewis Research Center Cleveland; Toledo, University, Toledo, Ohio, United States)
Janetzke, D. C.
(NASA Lewis Research Center Cleveland, OH, United States)
Sullivan, T. L.
(NASA Lewis Research Center Wind Energy Projects Office, Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 79-0733
Meeting Information
Meeting: Structures, Structural Dynamics, and Materials Conference
Location: St. Louis, MO
Start Date: April 4, 1979
End Date: April 6, 1979
Accession Number
79A29007
Distribution Limits
Public
Copyright
Other

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