The Impact of Critical Flutter Velocity in Composite Wind Turbine Blade with Prebend Condition

H. S. Sunil Kumar, K. R. Jagadeesh, R. B. Anand, T. Rangaswamy, Srikanth Salyan, Jenoris Muthiya Solomon, Joshuva Arockia Dhanraj, Joshua Stephen Chellakumar Isaac Joshua Ramesh Lalvani and Jinyan Song

Mathematical Problems in Engineering, 2022, vol. 2022, 1-13

Abstract: The present work focuses on the effect of flutter in prebend 100 m horizontal axis wind turbine blade (HAWT) within the stability limits. The study was carried out with an advanced beam model for idyllic structure in a DU-97-W-300 cross-sectional area. A Galerkin type of approach has been applied to derive the equations, and the analysis was performed using a standard FEA code which involves the PK method and double lattice method for calculating flutter solution and aerodynamic loads respectively. The results reveal the significance of inducing prebending to improve the stability of the blade structures, and hence, the flutter velocity has moved from 11 m/s to 23 m/s. Furthermore, the output highlights the effect of prebending on the structural stability and also the flutter limit was found to be lengthened.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:2050821

DOI: 10.1155/2022/2050821

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