Elasticity tailoring of a composite D-Spar [electronic resource] : Progress report for calendar year 1998
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy, 1998. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 29 Pages : digital, PDF file
- Additional Creators:
- Sandia National Laboratories, United States. Department of Energy. Office of Energy Efficiency and Renewable Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- There are many potential benefits to be gained from the aeroelastic behavior of a wind-turbine blade with bend-twist coupling. However, the ability to manufacture blades with sufficient coupling to provide the desired benefits has yet to be established. This report investigates the feasible (or practical) range of the coupling coefficient that can be obtained on a uniform cross-section composite D-spar, which could be the backbone of a wind-turbine-blade. The most critical parameters are identified and studied across a range of possible values. Various features, such as the geometry, skin thickness, ply distribution, ply materials, and ply orientations, are evaluated for their effect on twist-bend coupling of a D-spar. It is found that sufficient coupling can be built into the D-spar shape, but that carbon-fiber composite plies angled between 15 and 30 degrees to the longitudinal axis may be required.
- Published through SciTech Connect., 08/01/1998., "sand-98--1750", "EB250000000", "DE00001258", and Ong, Cheng-Huat; Tsai, Stephen W.
- Type of Report and Period Covered Note:
- Funding Information:
View MARC record | catkey: 14451678