Time domain based flutter prediction

Wind & Water Structural Analysis
6

Dear Sudhaker,

Here are my answers to your questions:

  1. Actually, ElastoDyn input PitchAxis is not used in Test26, or any FAST v8 model that uses AeroDyn v15. ElastoDyn input PitchAxis is used in conjunction with AeroDyn v14, based on the old definition of input AeroCent from FAST v7 and earlier. See the FAST v8 ReadMe file for more information: wind.nrel.gov/nwtc/docs/README_FAST8.pdf.

  2. The absence of the sectional center-of-mass offsets from the NREL 5-MW turbine in Test26 is discussed briefly in my post dated Feb 23, 2016 in the following forum topic: 6x6 Stiffness Matrix of NREL5 MW Turbine.

I hope that helps.

Best regards,