Work

Effective utilization of unidirectional laminates for mass reduction in composite blades of multi-MW wind turbines

Year: 2024

Type: article

Abstract: In this study, a reduction of 7.8–10.37% in the blade mass was achieved by optimizing the thickness of unidirectional spars in the Sandia 100-m all-glass baseline blade for a 13.2 MW wind turbine. The optimized design still complies with stiffness, strength, buckling, and resonance requirements for two design load conditions (i.e. DLCs 6.2 and 1.4) specified in the IEC 61,400-1 standard for both stationary and spinning blades. A genetic algorithm was utilized to solve the multi-criteria, multi-constraint optimization problem while satisfying the allowable design limits specified by the wind turbine standard. The optimized blade designs demonstrated effective use of unidirectional laminates in the spars but led to increased tip deflection and longitudinal strains along with a decrease in buckling performance and first natural frequency.

Source: Advanced Composite Materials

DOI: 10.1080/09243046.2024.2438470

Authors: Suhail Attar, Khazar Hayat

Institutions: Robert Gordon University, Papua New Guinea University of Technology

Language: English

Topic: Wind Energy Research and Development

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Funder: Hanyang University