Dear Jason
Yes,the article is that. Thanks for your advice.
Best regards，
Dear Jason.Jonkman
I also have a question that I would like to ask you about, that is, the input of the stiffness matrix, for example, I simulate a beam twisting 90° around the z axis, the stiffness matrix of each section of the beam will change, and the example file given by openfast only input the stiffness matrix at 0.0 and 1.0, how does the program identify the stiffness matrix of the station between the two ends of the beam? Have a good day.
Best regards,
Dear @XinPei.Zhang,
If you have structural analysis nodes in BeamDyn that are between input stations (e.g., because you have set refine > 1), then BeamDyn will linearly interpolate the sectional properties between stations. If linear interpolation is not sufficient for your case, you should add sectional properties at additional stations (by increasing station_total).
Best regards,
Dear Jason.Jonkman
Thank you for your quick reply.I am learning about the aerodyn separate drive module, and I would like to know if this document is the latest guidance document. The file name is given below. It says ‘AeroDyn contains two models for calculating the effect of wind turbine wakes: the blade element momentum theory and the generalized dynamic-wake theory.’. But I didn’t find ‘the generalized dynamic-wake theory’ in’ Aerodyn15.dat 'input file, ‘WakeMod’ only has BEMT, DBEMT, OlAF options. Finally, is there any information that can help me learn how to drive aerodyn alone? Thank you very much.
Best regards,
Dear @XinPei.Zhang,
The document you reference applies to older versions of AeroDyn (before AeroDyn v15).
Documentation on AeroDyn v15, including the standalone AeroDyn driver, is available on readthedocs: 4.2.1. AeroDyn Users Guide and Theory Manual — OpenFAST v3.5.1 documentation.
Best regards,