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Rotor dynamic considerations for large wind power generator systemsSuccessful large, reliable, low maintenance wind turbines must be designed with full consideration for minimizing dynamic response to aerodynamic, inertial, and gravitational forces. Much of existing helicopter rotor technology is applicable to this problem. Compared with helicopter rotors, large wind turbines are likely to be relatively less flexible with higher dimensionless natural frequencies. For very large wind turbines, low power output per unit weight and stresses due to gravitational forces are limiting factors. The need to reduce rotor complexity to a minimum favors the use of cantilevered (hingeless) rotor configurations where stresses are relieved by elastic deformations.
Document ID
19740008659
Document Type
Conference Paper
Authors
Ormiston, R. A.
(Army Air Mobility Research and Development Lab. Moffett Field, CA, United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1973
Publication Information
Publication: NASA. Lewis Res. Center Wind Energy Conversion Systems
Subject Category
Auxiliary Systems
Accession Number
74N16772
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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