On the structural topology of wind turbine blades

Neil Buckney*, Steven Green, Alberto Pirrera, Paul M. Weaver

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

20 Citations (Scopus)

Abstract

As wind turbines continue to grow in size, it becomes increasingly important to ensure that they are as structurally efficient as possible to ensure that wind energy can be a cost-effective source of power generation. A way to achieve this is through weight reductions in the blades of the wind turbine. In this study, topology optimization is used to find alternative structural configurations for a 45 m blade from a 3 MW wind turbine. The result of the topology optimization is a layout that varies along the blade length, transitioning from a structure with trailing edge reinforcement to one with offset spar caps. Sizing optimization was then performed on a section with the trailing edge reinforcement and was shown to offer potential weight savings of 13.8% when compared with a more conventional design. These findings indicate that the conventional structural layout of a wind turbine blade is sub-optimal under the static load conditions that were applied, suggesting an opportunity to reduce blade weight and cost. Copyright © 2012 John Wiley & Sons, Ltd.

Translated title of the contributionOn the structural topology of wind turbine blades
Original languageEnglish
Pages (from-to)545-560
Number of pages16
JournalWind Energy
Volume16
Issue number4
DOIs
Publication statusPublished - 1 May 2013

Keywords

  • sizing optimization
  • topology optimization
  • wind turbine blade

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