A Method of Structure Analysis for Complex Small HAWT Composite Blade Design

Abstract:

Article Preview

The air contain very low density of energy, as a result the complex 3D shape blade is required for maximize the energy extraction. The blades of the wind turbine will suffer the tough nature environment. The complex 3D shape blade with thick composite layers creates unique challenge for the design and structure analysis. The equivalent property of a composite layer that contains multiple plies of laminates is often used in the analysis of the thick composite structures. This study focused on a methodology to calculating the equivalent material properties on the 3D blade with thick composite layers. The research applies reverse engineering method to sample the blade material in order to get the equivalent material properties of complex composite 3D blade. By doing this, an equivalent material properties of composite blade can be used in the finite element analysis. The result can also provide a guide line for stress and fatigue design of blade.

Info:

Periodical:

Advanced Materials Research (Volumes 591-593)

Edited by:

Liangchi Zhang, Chunliang Zhang, Jeng-Haur Horng and Zichen Chen

Pages:

227-230

Citation:

S. F. Wei and C. Y. Lin, "A Method of Structure Analysis for Complex Small HAWT Composite Blade Design", Advanced Materials Research, Vols. 591-593, pp. 227-230, 2012

Online since:

November 2012

Export:

Price:

$41.00

[1] Enie, R. B. and Rizzo, R. R., Three-Dimensional Laminate Moduli, Journal of Composite Materials, Vol. 4, 1970, pp.150-154.

DOI: https://doi.org/10.1177/002199837000400118

[2] Sun, C. T. and Li, S., Three-Dimensional Equivalent Elastic Constants for Thick Laminates, Journal of Composite Materials, Vol. 22, 1988, pp.629-639.

DOI: https://doi.org/10.1177/002199838802200703

[3] Chan, W. S. and Chou, C. J., Effects of Delamination and Ply Fiber Waviness on Equivalent Axial and Bending Stiffnesses in Composite Laminates, Composite Structures, Vol. 30, 1995, pp.299-306.

DOI: https://doi.org/10.1016/0263-8223(94)00044-1

[4] Chen, D. J. and Chan, W.S. Use of Composite Equivalent Moduli for Lumping Layers in Finite Element Analysis, Proceedings of the 37th AIAA SDM Conference, Salt Lake City, Utah, April 15-17, (1996).

[5] Lin, C. Y. and Chan, W. S. A Study of Composite Layer Lumping in Finite Element Analysis, presented in the 24th National Conference of Theoretical and Applied Mechanic, Taiwan, Dec. 9-11, (2000).

[6] W.S. Chan, C.Y. Lin et al. Equivalent thermal Expansion Coefficients of Lumped Layer in Laminated Composites, Composites Science and Technology, 66 (14), pp.2402-2408, Nov (2006).

DOI: https://doi.org/10.1016/j.compscitech.2006.01.010