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Title: Increased Strength in Wind Turbine Blades through Innovative Structural Design.

Abstract

Abstract not provided.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1148285
Report Number(s):
SAND2007-2632C
523194
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the EWEC 2007 held May 7-10, 2007 in Milan, Italy.
Country of Publication:
United States
Language:
English

Citation Formats

Paquette, Joshua A., and Veers, Paul S. Increased Strength in Wind Turbine Blades through Innovative Structural Design.. United States: N. p., 2007. Web.
Paquette, Joshua A., & Veers, Paul S. Increased Strength in Wind Turbine Blades through Innovative Structural Design.. United States.
Paquette, Joshua A., and Veers, Paul S. Sun . "Increased Strength in Wind Turbine Blades through Innovative Structural Design.". United States. doi:. https://www.osti.gov/servlets/purl/1148285.
@article{osti_1148285,
title = {Increased Strength in Wind Turbine Blades through Innovative Structural Design.},
author = {Paquette, Joshua A. and Veers, Paul S.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}

Conference:
Other availability
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  • Abstract not provided.
  • A computer code was developed which models the aeroelastic-structural response of arbitrary wind turbine blades undergoing gust loading. The code couples a three-dimensional, time-domain, unsteady aerodynamic analysis with a geometric, nonlinear, finite element model of a laminated composite structural blade to predict the response of wind turbine blades. The full aerodynamic loading is accounted for by rapidly tracking the unsteady, 3-D, vortex filament wake shed behind each blade of the turbine. The program also makes estimates of the nonlinear aerodynamic loading in the both the pre- and post-stall regimes. In order to make it an effective design tool, the programmore » can accept arbitrary blade geometries including user specified airfoil sections, taper ratio, blade twist, number of blades, laminate stacking sequence, and mass and material properties. In coupling the aerodynamics with the structural model, estimates of large blade deflections and stresses can be made. The program has been compared with experimental results of the Storm Master Turbine and showed good agreement of both the aerodynamics and the structural performance. The code can be used as a design tool handling virtually any blade geometry and gust loading.« less
  • Abstract not provided.
  • Abstract not provided.
  • The primary goal of the WindPACT Blade System Design Study (BSDS) was investigation and evaluation of design and manufacturing issues for wind turbine blades in the one to ten megawatt size range. The initial project task was to assess the fundamental physical and manufacturing issues that govern and constrain large blades and entails three basic elements: (1) a parametric scaling study to assess blade structure using current technology, (2) an economic study of the cost to manufacture, transport, and install large blades, and (3) identification of promising innovative design approaches that show potential for overcoming fundamental physical and manufacturing constraints.more » This report discusses several innovative design approaches and their potential for blade cost reduction. During this effort we reviewed methods for optimizing the blade cross-section to improve structural and manufacturing characteristics. We also analyzed and compared a number of composite materials and evaluated their relative merits for use in large wind turbine blades in the range from 30 meters to 70 meters. The results have been summarized in dimensional and non-dimensional format to aid in interpretation. These results build upon earlier parametric and blade cost studies, which were used as a guide for the innovative design approaches explored here.« less