Dear Dr. Jonkman
Could you please send me a FAST theory manual?
I appreciate your time,
Thank you
Leo
Dear Dr. Jonkman
Could you please send me a FAST theory manual?
I appreciate your time,
Thank you
Leo
Sent.
Dear Mr Jonson
Can you please send this manual
e-mail: ali.elyaakoubi@gmail.com
Thanks
Sent.
Dear Jason:
I would also like to request a copy of the âUnofficial FAST Theory Manualâ.
My email is: szy874@163.com
Best Regards!
Keshan
Sent.
Dear Dr. Jason,
I would like also to receive the Unofficial FAST theory manual if possible.
My email: amrmetwally@riam.kyushu-u.ac.jp
Thank you so much.
Best regards,
Amr Ismaiel
Sent.
Dear Dr. Jason,
Could you please send me the Unofficial FAST theory manual.
My email: sarkars@tcd.ie
Thank you so much.
Sent.
Dear Dr. Jonkman,
Could you also send me the âUnofficial FAST Theory Manualâ for FAST v7,v8 and userâs guide for FAST v8?
My mail address: abc720919@gmail.com
Thank you
Kind Regards
Jason. Lai
Sent.
The following constitutes the current Userâs Guide for FAST v8:
Best regards,
Dear Jason,
Could you please send me the Unofficial FAST theory manual? My email is zhoushengtao1991@foxmail.com
Thank you!
Best regards,
Shengtao Zhou
Sent.
Could you please send me the Unofficial FAST theory manual?
My email is gerrykoun@gmail.com
Thank you in advance
Sent.
Dear Dr. Jonkman
In the Unofficial FAST Theory Manual, in the Kinetics document, the Nacelle inertia dyadic has terms only parallel to d2 unit vector. Can you please clarify why the terms parallel to d1 and d3 unit vectors neglected? Here Iâm assuming that d1, d2 & d3 are also the principal axes for the Nacelle.
I have attached the page below. I have also observed the same for generator inertia where Generator Inertia dyadic only has terms parallel to c1.
1.pdf (70.2 KB)
Thank you,
Saptarshi
Dear Saptarshi,
Good question. Yes, your understanding is correct. The pitch/roll inertias of the nacelle and the transverse inertias of the generator are neglected in ElastoDyn under the assumption that there influence on the full-system dynamic response is small relative to other terms. It would not be too difficult to modify the source code to include the currently neglected terms to see if they have an influence on your system.
Best regards,
Dear Dr. Jonkman,
Thanks a million for the clarification. The FAST input file has the nacelle inertia value about the yaw axis. From where can I get the nacelle inertia values about the other axes? Or should I just calculate it from the nacelle dimension?
Thank you,
Saptarshi
Dear Saptarshi,
Youâd have to get that using data available for the turbine you are modeling.
Best regards,