winder365

Dear @jjonkman , As you direction, I browse the url "https://forums.nrel.gov/t/beamdyn-the-blade-modal-are-calculated-using-the-beamdyn-sum-file/6258." However, the results I got maybe wrong. by solve the eigenvalue and eigenvector of the matrix K_BD*inv(M_BD), the eigenvalue...

Dear @jjonkman , Thank for your reply. (1) As your mentioned, the shear center is the point in the cross section where a shear force will not induce torsion. So,...

Dear @jjonkman , Thank you for your reply. I still have two question: (1) As we discussed above, shear center is important in blade deformation calculation, but how can I...

Dear @jjonkman , Sorry for not clarifying the question. I want to test the effect of servo control of the IEA-15 MW wind turbine operated a prescribed sinusoidal variation wind...

Dear @jjonkman, Thank very much for you efficient response! 1) You are right! The `GenDOF` is enabled in ElastoDyn, and the baseline ROSCO controller for the IEA Wind 15-MW RWT...

Dear @dzalkind @jjonkman ， Thank you for your attention! Of course, I have set `PCMode` to 5 (user-defined from Bladed-style DLL) in ServoDyn must be set when using the DLL-based...

Dear @jjonkman , Thank you for your reply! I have read a description about the coupling between aerodyn and beamdyn here "https://forums.nrel.gov/t/clarification-on-aeroelastic-coupling-approach-in-openfast/9383". My question is for the openfast v3.5.x or...

Dear @jjonkman , As you mentioned above, if BeamDyn has a smaller time step than AeroDyn (including the OLAF submodel), then the outputs of AeroDyn will be interpolated to the...