A comparison of predicted wind turbine blade loads to test measurements

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · J. Sol. Energy Eng.; (United States)

DOI:https://doi.org/10.1115/1.3268254· OSTI ID:6752947

Wright, A D; Thresher, R W

The accurate prediction of wind turbine blade loads and response is important in predicting the fatigue life of wind machines. At the SERI Wind Energy Research Center, a rotor code called FLAP (Force and Loads Analysis Program) is currently being validated by comparing predicted results to machine measurements. The FLAP code has been modified to allow the teetering degree of freedom. This paper describes these modifications and comparisons of predicted blade blending moments to test measurements. Wind tunnel data for a 1/20th scale model will be used to compare FLAP predictions for the cyclic flap-bending moments at the 33 percent spanwise station for three different wind speeds. The comparisons will be made for both rigid and teetering hubs. Currently, the FLAP code accounts for deterministic excitations such as wind shear, tower shadow, gravity, and prescribed yawing motions. Conclusions will be made regarding the code's accuracy in predicting the cyclic bending moments.

• Research Organization: Solar Energy Research Institute, Wind Energy Research Center, Golden, CO (US)
• OSTI ID: 6752947
• Journal Information: J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 110:N-3; ISSN JSEED
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
170602* -- Wind Energy Engineering-- Turbine Design & Operation
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
BENDING
COMPUTER CODES
DEGREES OF FREEDOM
F CODES
FATIGUE
MACHINERY
MECHANICAL PROPERTIES
SCALE MODELS
STRUCTURAL MODELS
THERMAL FATIGUE
TURBINE BLADES
TURBINES
TURBOMACHINERY
WIND TURBINES