Optimization design of spar cap layup for wind turbine blade

Jie ZHU; Xin CAI; Pan PAN; Rongrong GU

doi:10.1007/s11709-012-0147-9

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Front. Struct. Civ. Eng. ›› 2012, Vol. 6 ›› Issue (1) : 53-56. DOI: 10.1007/s11709-012-0147-9

RESEARCH ARTICLE

Optimization design of spar cap layup for wind turbine blade

Jie ZHU¹ ,
Xin CAI¹^,² ,
Pan PAN¹ ,
Rongrong GU¹

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Abstract

Based on the aerodynamic shape and structural form of the blade are fixed, a mathematical model of optimization design for wind turbine blade is established. The model is pursued with respect to minimum the blade mass to reduce the cost of wind turbine production. The material layup numbers of the spar cap are chosen as the design variables; while the demands of strength, stiffness and stability of the blade are employed as the constraint conditions. The optimization design for a 1.5 MW wind turbine blade is carried out by combing above objective and constraint conditions at the action of ultimate flapwise loads with the finite element software ANSYS. Compared with the original design, the optimization design result achieves a reduction of 7.2% of the blade mass, the stress and strain distribution of the blade is more reasonable, and there is no occurrence of resonance, therefore its effectiveness is verified.

Keywords

wind turbine blade / spar cap layup / optimization design / blade mass

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Jie ZHU, Xin CAI, Pan PAN, Rongrong GU. Optimization design of spar cap layup for wind turbine blade. Front Struc Civil Eng, 2012, 6(1): 53‒56 https://doi.org/10.1007/s11709-012-0147-9

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