Search found 18 matches

by Giuseppe.Abbate
Tue Feb 11, 2014 3:27 am
Forum: Computer-Aided Engineering Software Tools
Topic: Beginner Guide for MATLAB Simulink and FAST
Replies: 47
Views: 50579

Re: Beginner Guide for MATLAB Simulink and FAST

Hi,

I am not sure about it, but it seems that you have not added the correct folder in MATLAB as written in the FAST user's guide. Have you followed that guide (see page 35 and expecially 36 of the guide) before following my steps?

Have a nice day,
Giuseppe
by Giuseppe.Abbate
Sat Dec 28, 2013 9:45 am
Forum: Computer-Aided Engineering Software Tools
Topic: Platform Fatigue Analysis
Replies: 6
Views: 3068

Re: Platform Fatigue Analysis

Dear Marshall,

thank you for the advice. I'll see also MLife. Anyway I just need a basic analysis for fatigue, so I think MCrunch should be enough.

Best regards,
Giuseppe
by Giuseppe.Abbate
Fri Dec 13, 2013 10:41 am
Forum: Computer-Aided Engineering Software Tools
Topic: Platform Fatigue Analysis
Replies: 6
Views: 3068

Re: Platform Fatigue Analysis

Dear Jason,

as usual you solved my problem.
Thank you again!
Giuseppe
by Giuseppe.Abbate
Fri Dec 13, 2013 6:17 am
Forum: Computer-Aided Engineering Software Tools
Topic: Platform Fatigue Analysis
Replies: 6
Views: 3068

Platform Fatigue Analysis

Dear all, I should make a fatigue analysis of the platform for the Hywind using the output from a FAST simulation and MCrunch. I've seen in FAST User's Guide that an interesting channel could be: PtfmMyt Platform pitch tilt moment But actually I cannot deeply understand to what does this output refe...
by Giuseppe.Abbate
Thu Dec 12, 2013 2:22 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Re: Hywind OC3 simulation problem

Dear Jason, I am really sorry for my mistake. I actually wanted to use PCMode=1 VSContrl=2 Anyway, I wanted to use the baseline controller using the library you have wrote, and because I'm using it in MATLAB I thought that it was possibile to use the library controller directly from FAST. I understa...
by Giuseppe.Abbate
Wed Dec 11, 2013 8:28 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Re: Hywind OC3 simulation problem

Dear All, I still have a problem in the simulation of the Hywind. I have made my controller for the Hywind in Simulink and applied it using the procedure described above and it work properly. I should now make a comparison between my controller and the baseline descripted in the "Definition of ...
by Giuseppe.Abbate
Thu Nov 28, 2013 9:26 am
Forum: Computer-Aided Engineering Software Tools
Topic: Height of the Hywind
Replies: 4
Views: 2153

Re: Height of the Hywind

Dear Jason,

now I've understood the problems. I totally forgot the cosine...
I will consider as tower height the 87.6 m.

Thank you a lot for your kind help,
Best wishes
Giuseppe
by Giuseppe.Abbate
Wed Nov 27, 2013 9:39 am
Forum: Computer-Aided Engineering Software Tools
Topic: Height of the Hywind
Replies: 4
Views: 2153

Re: Height of the Hywind

Dear Jason, thank you for your answer. I'm sorry I didn't explain precisely my purposes. I'm just considering the platform pitch and the tower deflection in the model that I'm developing, considering the tower as rigid. Without considering the PtfmSurge I think that the equation should be correct. T...
by Giuseppe.Abbate
Wed Nov 27, 2013 2:06 am
Forum: Computer-Aided Engineering Software Tools
Topic: Height of the Hywind
Replies: 4
Views: 2153

Height of the Hywind

Hi all, I'm doing a project on the Hywind concerning the reduction of the tower top oscillation. Of course I need the height of the tower, but I found some different values. For the total displacement of the tower top I'm using: z_tot=TTDspFA+H*sin(PtfmPitch*pi/180) In the "Definition of 5 MW r...
by Giuseppe.Abbate
Wed Oct 30, 2013 3:04 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 platform motion
Replies: 2
Views: 1357

Re: Hywind OC3 platform motion

Dear Jason,

thank you for you reply. That's all I wanted to know. =)

Have a nice day,
Giuseppe
by Giuseppe.Abbate
Mon Oct 28, 2013 7:49 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 platform motion
Replies: 2
Views: 1357

Hywind OC3 platform motion

Dear all, for my project I have to look at the motion of the tower and the platform. I would like to see the deflection of the base of the platform with respect to the SWL. In other words, I should need something like the "TTDspFA" (that is used for the top of the tower) for the deepest po...
by Giuseppe.Abbate
Fri Oct 18, 2013 3:11 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Re: Hywind OC3 simulation problem

Dear Jason, now it works. =) I will post what I have done, to make it easier for other newbies =) To run a simulation in Simulink of the OC3 (without recompiling the *.mex32) I download the older version of fast, at this link: http://wind.nrel.gov/designcodes/simulators/fast/downloaders/FAST_v7.01.0...
by Giuseppe.Abbate
Wed Oct 16, 2013 7:23 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Re: Hywind OC3 simulation problem

Dear Jason, I was looking how to recompile the S-Function of the Hywind, but I found this topic: https://wind.nrel.gov/forum/wind/viewtopic.php?f=4&t=531&p=2313&hilit=oc3+mex#p2313 in which you have written that there should be in the zip folder of Hywind the *.mexw32 file. As I've said ...
by Giuseppe.Abbate
Wed Oct 16, 2013 3:35 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Re: Hywind OC3 simulation problem

Dear Jason, first of all I want to thank you for your fast reply to my post, it was very helpful. I didn't understand that the S-Function had to be recompiled for the OC3 Hywind. I think that this is the reason why the simulation didn't run properly. I will try to recompile the S-function for the Hy...
by Giuseppe.Abbate
Tue Oct 15, 2013 11:20 am
Forum: Computer-Aided Engineering Software Tools
Topic: Hywind OC3 simulation problem
Replies: 8
Views: 4274

Hywind OC3 simulation problem

Hi all, I'm doing a project for the Hywind OC3 floating windturbine and I'm trying to simulate it by FAST in Simulink. I've downloaded the zip file from this link http://wind.nrel.gov/public/jjonkman/NRELOffshrBsline5MW/NRELOffshrBsline5MW_OC3Hywind.zip I wanted to see if everything was working prop...

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