Examination of the predictions versus measurements of an acoustic interaction model for spinning modes, and concurrent low frequency amplitude modulation acoustic signatures from a 3MW wind turbine

Research output: Contribution to journalMeeting Abstractpeer-review

Abstract

A recently presented hypothesis and model relating to the generation of spinning modes from wind turbines, as a direct result of acoustic interaction involving the tower, results in a far field infrasound sound pressure level prediction, which is higher than that predicted by point source method. The model also predicts a significant attenuation of the fundamental blade passing frequency component relative to the second and higher harmonics.
Original languageEnglish
Pages (from-to)2272
Number of pages1
JournalJournal of the Acoustical Society of America
Volume135
Issue number4 Pt. 2
Publication statusPublished - Apr 2014
Externally publishedYes
Event167th Meeting of the Acoustical Society of America - Rhode Island Convention Center and Omni Providence Hotel, Providence, United States
Duration: 5 May 20149 May 2014

Keywords

  • spinning modes
  • Wind turbines
  • acoustic interaction model
  • low frequency
  • Amplitude modulation

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