The Impact of Critical Flutter Velocity in Composite Wind Turbine Blade with Prebend Condition. (2nd March 2022)

• Record Type: Journal Article
• Authors: Kumar, H. S. Sunil; Jagadeesh, K. R.; Anand, R. B.; Rangaswamy, T.; Salyan, Srikanth; Solomon, Jenoris Muthiya; Arockia Dhanraj, Joshuva; Isaac Joshua Ramesh Lalvani, Joshua Stephen Chellakumar
• Other Names: Song Jinyan Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2022(2022)
• Publication Date: 2022-03-02
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2022/2050821
• Languages: English
• ISSNs: 1024-123X

Abstract

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.