Design and evaluation of low-cost stainless steel - fiberglass-foam blades for large wind-driven generating systems
Technical Report
·
OSTI ID:6535655
The development of a low cost wind turbine blade design based on a stainless steel/fiberglass foam design concept is described, and its principle characteristics, its low cost features, and its advantages and disadvantages are evaluated. A blade structure was designed and construction methods and materials were selected. Complete blade tooling concepts, various technical and economic analysis, and evaluations of the blade design were performed. A study was made to determine the applicability of the blade design concept to various blade lengths in the range of 15 ft to 200 ft. A test specimen of the spar assembly, including the root and attachment, was fabricted. This 20 ft long full-scale section will be fatigue tested by NASA. It was concluded that the stainless steel/fiberglass-foam blade concept is a viable design for application to large wind turbine systems. A blade design was completed which meets the requirements for operation on the MOD-OA wind turbine. The design concept is applicable to various length blades. Blades less than 60 feet would use a stainless steel spar and blades of larger size would have a fusion welded carbon steel spar. The design permits a choice of a wide selectivity of air-foil shapes and, because of its modular construction, the design provides producibility and quality in high volume production.
- Research Organization:
- Budd Co., Fort Washington, PA (USA). Technical Center
- DOE Contract Number:
- AI01-76ET20320
- OSTI ID:
- 6535655
- Report Number(s):
- DOE/NASA/0129-1; NASA-CR-165491; ON: DE83007588
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
17 WIND ENERGY
170602* -- Wind Energy Engineering-- Turbine Design & Operation
ALLOYS
BENDING
CHROMIUM ALLOYS
COMPOSITE MATERIALS
CORROSION RESISTANT ALLOYS
COST
DESIGN
EVALUATION
FIBERGLASS
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MATERIALS
STAINLESS STEELS
STEELS
STRESS ANALYSIS
TESTING
TURBINE BLADES
TURBINES
TURBOMACHINERY
WEIGHT
WIND TURBINES
170602* -- Wind Energy Engineering-- Turbine Design & Operation
ALLOYS
BENDING
CHROMIUM ALLOYS
COMPOSITE MATERIALS
CORROSION RESISTANT ALLOYS
COST
DESIGN
EVALUATION
FIBERGLASS
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MATERIALS
STAINLESS STEELS
STEELS
STRESS ANALYSIS
TESTING
TURBINE BLADES
TURBINES
TURBOMACHINERY
WEIGHT
WIND TURBINES