Dear Pouria,
It looks like you’ve posted the same question in OpenFAST issues (github.com/OpenFAST/openfast/issues/140 ), which has now been answered by Jelmer Polman, with a reference to the following forum topics:
Hi all,
I am new to FAST, so I use Test26 as a practice to be more familiar with FAST. I noticed that there are two different type of nodes: FE Nodes and Blade Nodes.
I understand that you can increase the Blade node in the ElastoDyn input file, but I do not know where to increase the FE nodes (since the manual states that the number max. FE nodes is 9). Also, I got the error message if I specify order_elem >6. So I am wondering the differences between FE Nodes and Blade Nodes, and the relatio…
Dear Jelmer,
Your understanding is correct.
The FE nodes are where the structural degrees of freedom are defined. The quadrature points are where the spatial integrations are made.
Best regards,
Best regards,