Dear all,
I am currently working on calculating the tower loads on the main structure and encountered an issue. I noticed that the tower is divided into 9 sections, and it is possible to retrieve local loads for each section. To do this, I added the relevant output channels in the ElastoDyn file.
However, when I ran the simulation, the values for these channels were set to 0, and no units were provided, which suggests that the loads were not computed.
Upon reviewing the ElastoDyn file, I saw that the NTwGages parameter was set to 0. I updated this to 9 and attempted the simulation again. Unfortunately, I received the following error:
Error reported by S-function âFAST_SFuncâ in âPaper_P01_sim/FAST Nonlinear Wind Turbine1/S-Functionâ:
FAST_InitializeAll:ED_Init:ED_ReadInput:ReadPrimaryFile:Invalid numerical input for file
â.\NRELOffshrBsline5MW_Onshore_ElastoDyn.datâ occurred while trying to read TwrGagNd.
It seems the error is related to how the TwrGagNd parameter is written in the file (see the attached figure). I have read the documentation but unfortunately, Iâm not really sure what TwrGagNd refers to or what values I should input for this parameter.
Could you please provide guidance on what the TwrGagNd parameter represents and what the correct values should be in this case?
Best regards,
Sarah Gilles