Search found 9 matches

by Farhad.Abtahi
Fri May 25, 2018 4:47 am
Forum: Computer-Aided Engineering Software Tools
Topic: GEBT-LSFE approach
Replies: 2
Views: 1314

Re: GEBT-LSFE approach

Brilliant, thank you Dr. Jonkman.

It helped greatly to clear my head.
by Farhad.Abtahi
Wed May 23, 2018 3:57 am
Forum: Computer-Aided Engineering Software Tools
Topic: GEBT-LSFE approach
Replies: 2
Views: 1314

GEBT-LSFE approach

Hello everyone, I've been trying to understand theory behind BeamDyn, I find myself a bit confused after reading about GEBT and LSFE, which lead me to ask these questions. 1- Is the difference between GEBT and Euler-bernoulli beam theory is that GEBT uses 6*6 mass and stiffness matrices? 2- How is L...
by Farhad.Abtahi
Thu Apr 26, 2018 4:54 am
Forum: Computer-Aided Engineering Software Tools
Topic: BeamDyn Sectional Motions
Replies: 4
Views: 1949

Re: BeamDyn Sectional Motions

Thank you dr. I think I understand now.
by Farhad.Abtahi
Thu Apr 26, 2018 2:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: BeamDyn Sectional Motions
Replies: 4
Views: 1949

Re: BeamDyn Sectional Motions

Thank you dr. Jonkman for quick response, It is working now.
I understand that section 1-9 and tip are available as outputs. Is there a way to get results for rest of the sections? for example NREL 5WM-Baseline has 49 sections, can BeamDyn calculate behavior of 10-48 sections?
by Farhad.Abtahi
Wed Apr 25, 2018 2:36 am
Forum: Computer-Aided Engineering Software Tools
Topic: BeamDyn Sectional Motions
Replies: 4
Views: 1949

BeamDyn Sectional Motions

Dear all, I have been trying to get Sectional Motions (e.g. N2TDxr) from BeamDyn, FAST runs without a problem but, as outputs TDxrs are "INVALID" and are all equal to zero. I dont understand if I am providing fast with Invalid inputs or BeamDyn is not successfully calculating those motions...
by Farhad.Abtahi
Mon Feb 26, 2018 2:53 am
Forum: Computer-Aided Engineering Software Tools
Topic: LMH64-5 Geometry
Replies: 0
Views: 6935

LMH64-5 Geometry

Dear All, I have been trying to find "LMH64-5 Geometry",In "Aeroelastic Analysis of the LMH64-5 Blade Concept" by C. Lindenburg, reference number five is what I am seeking. [5] ( Kooij, J. (LM Glasfiber Holland); EXCEL file: ‘LMH64-5 geometry’ . e-mail correspondence, November 12...
by Farhad.Abtahi
Fri Dec 15, 2017 10:43 am
Forum: Computer-Aided Engineering Software Tools
Topic: Numad batch
Replies: 0
Views: 7052

Numad batch

Dear all, I want to write a Batch file for Numad in order to run multiple texts in short period of time like FAST batch file. Problem: I cant see any obvious parameters in Numad input file( input file is attached ). Questions: 1_Is it possible to write batch for Numad? 2_how can I write batch for Nu...
by Farhad.Abtahi
Mon Dec 11, 2017 8:13 am
Forum: Computer-Aided Engineering Software Tools
Topic: BeamDyn Input
Replies: 9
Views: 3801

BeamDyn Input

Dear all, I've got outputs from Numad + Precomp and trying to create my own BeamDyn input file to use in FAST. Majority of needed data are obtained from Numad's output but there are some missing pieces and confusion. questions: 1_how can I obtain edge and flap shear stiffnesses? Page 15* in BeamDyn ...
by Farhad.Abtahi
Mon Dec 11, 2017 5:38 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST theory manual
Replies: 375
Views: 83092

Re: FAST theory manual

Dear Jason,

Could you please send me the unofficial theory manual?

Email : farhadabtahi91@gmail.com

Best regards,

farhad

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