Fatigue Test Design: Scenarios for Biaxial Fatigue Testing of a 60-Meter Wind Turbine Blade

Nathan Post, Falko Burkner

Research output: NRELTechnical Report

Abstract

Current practice in commercial certification of wind turbine blades is to perform separate flap and lead-lag fatigue tests. The National Renewable Energy Laboratory has been researching and evaluating biaxial fatigue testing techniques and demonstrating various options, typically on smaller-scale test articles at the National Wind Technology Center. This report evaluates some of these biaxial fatigue options in the context of application to a multimegawatt blade certification test program at the Wind Technology Testing Center in Charlestown, Massachusetts.
Original languageAmerican English
Number of pages92
DOIs
StatePublished - 2019

Bibliographical note

Originally published in July 2016 and revised in August 2019

NREL Publication Number

  • NREL/TP-5000-65227

Keywords

  • biaxial
  • fatigue wind turbine blade
  • IEC 61400-23
  • phase locked
  • resonance
  • resonant
  • structural testing

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