A Staged Approach to Erosion Analysis of Wind Turbine Blade Coatings

Autor: Grant Leishman, Kirsten Dyer, David Nash, Cameron Mackie, Liu Yang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Coatings, Vol 11, Iss 681, p 681 (2021)
Coatings
Volume 11
Issue 6
ISSN: 2079-6412
Popis: The current wind turbine leading-edge erosion research focuses on the end of the incubation period and breakthrough when analysing the erosion mechanism. This work presented here shows the benefits of splitting and describing leading-edge erosion progression into discrete stages. The five identified stages are: (1) an undamaged, as-new, sample
(2) between the undamaged sample and end of incubation
(3) the end of incubation period
(4) between the end of incubation and breakthrough, and (5) breakthrough. Mass loss, microscopy and X-ray computed tomography were investigated at each of the five stages. From this analysis, it was observed that notable changes were detected at Stages 2 and 4, which are not usually considered separately. The staged approach to rain erosion testing offers a more thorough understanding of how the coating system changes and ultimately fails due to rain droplet impacts. It is observed that during microscopy and X-ray computed tomography, changes unobservable to the naked eye can be tracked using the staged approach.
Databáze: OpenAIRE