Analysis of dynamic stability for wind turbine blade under fluid-structure interaction

Jianping Zhang, Wenlong Chen, Tingjun Zhou, Helen Wu, Danmei Hu, Jianxing Ren

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Aiming at improving vibration performance of 1.5 MW wind turbine blades, the theoretical model and the calculation process of vibration problems under geometric nonlinearity and unidirectional fluid-structure interaction (UFSI) were presented. The dynamic stability analysis on a 1.5 MW wind turbine blade was carried out. Both the maximum brandish displacement and the maximum Mises stress increase nonlinearly with the increase of wind speed. The influences of turbulent effect, wind shear effect and their joint effect on displacement and stress increase sequentially. Furthermore, the stability critical curves are calculated and analyzed. As a result, the stability region is established where the wind turbine blade can run safely.
Original languageEnglish
Pages (from-to)1175-1186
Number of pages12
JournalJournal of Vibroengineering
Volume18
Issue number2
Publication statusPublished - 2016

Keywords

  • blades
  • fluid-structure interaction
  • stability
  • turbulence
  • wind shear
  • wind turbines

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