## Search found 20 matches

Fri Aug 19, 2016 5:51 am
Forum: Computer-Aided Engineering Software Tools
Topic: Nacelle Motions
Replies: 25
Views: 6986

### Re: Nacelle Motions

Hello Jason, thank you very much, that already helped a lot! I got one more question though: As TTDspFA is the absolute deflection from the undeflected position, it is the sum of a static deflection (which varies for turbulent wind speed) and a dynamic deflection. If I have higher wind speeds the st...
Fri Aug 12, 2016 3:43 am
Forum: Computer-Aided Engineering Software Tools
Topic: Nacelle Motions
Replies: 25
Views: 6986

### Re: Nacelle Motions

Hello Jason, for the implemention of my subroutine I need the tower top deflection. I know it is an easy question, but since I havent found the mistake in my imlementation yet, I want to make sure I understand the output-parameter TTDspFA correctly . With "relative to the undeflected position&q...
Sun Jul 24, 2016 2:14 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Hello Jason, I think I finally got your point. I calculated the speed where the transition happens between Regions 2 and 2.5 using the follwing equations from FAST_IO.f90 in combination with Discon.dll: VS_TrGnSp = ( VS_Slope - SQRT( VS_Slope*( VS_Slope - 4.0*VS_Rgn2K*VS_SySp ) ) )/( 2.0*VS_Rgn2K ) ...
Fri Jul 22, 2016 11:04 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Dear Jason, I will be able to calculate it myself I think. I understand what you mean when your say "The transitional generator speed between Regions 2.5 and 3 is 1161.963 rpm, not 1173.7 rpm, the latter of which is the rated speed. The transitional generator speed between Regions 2 and Regions...
Fri Jul 22, 2016 9:27 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Hello Jason, I´ve had a look in the DLL and the documentation about the ref-wind turbine again and found the following: text.PNG GenTrq.PNG I dont find any other values that the ones mentioned before for region 2.5. The equation for region 2.5 "GenTrq = VS_Slope25*( GenSpeedF - VS_SySp )"....
Fri Jul 22, 2016 3:26 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Hello Jason, thank you very much. With your help I was able to make the program run properly for the rated wind speed. Nevertheless the results of the two simulations (Simulink and fast executive) are not exactly the same yet. For the saturation of the Integral I found this description in the docume...
Thu Jul 21, 2016 1:53 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Hello Jason, To see which controller logic are implemented in the DISCON.dll I need to check the source files, right? (BladedDLLInterface.f90, UserSubs_forBladedDLL.f90 and UserVSCont_KP_forBladedDLL.f90). Cause the DISCON.dll itself is obviously not readable. If so, I will try doing that. I know yo...
Wed Jul 20, 2016 9:50 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Hello Jason, thanks for your quick response! yes, your understanding of my question is correct. The model I am using was developed by Dr.Namik from Auckland University. I know, you are not familiar with this model, that´s why here are a three screenshots of the Pitch Controller: Pitch-Controller.PNG...
Wed Jul 20, 2016 3:26 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error in FAST, working in ADAMS
Replies: 16
Views: 6090

### Re: Error in FAST, working in ADAMS

Dear Jason, I´ve read all the forum topics about the "small angle assumption"-warning and the supersonic blades. I am simulating the Onshore5MW reference wind turbine including Pitch control in simulink (FAST V7/Simulink interface). The model works properly for wind speeds of 2 m/s, 2.4 m/...
Wed Jun 29, 2016 1:01 am
Forum: Controls
Topic: Beginner to Simulink and FAST V7
Replies: 30
Views: 19345

### Re: Beginner to Simulink and FAST V7

Hi Bonnie. "It looks like the w_cut variable is undefined. The other error refers something called Model_Inputs that is undefined. So, I would guess that you are missing a MATLAB script that defines some variables (including w_cut and Model_Inputs) that are needed for the Simulink model you are...
Tue Jun 28, 2016 6:30 am
Forum: Controls
Topic: Beginner to Simulink and FAST V7
Replies: 30
Views: 19345

### Re: Beginner to Simulink and FAST V7

Hello Bonnie, I found the mistake in the Read_FAST_Input_TMD and now I can import all the parameters I need! Thank you very much for your help! Nevertheless the simulink model provided by Dr. Lackner still doesnt run because of an error. In the process of eliminating the errors in the model I notice...
Sat Jun 25, 2016 6:45 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST exe. vs FAST_SFunc.
Replies: 7
Views: 3197

### Re: FAST exe. vs FAST_SFunc.

Dear Mr.Jonkman, If I choose the user-defined control options for interfacing with a GH Bladed-style DLL in FAST V7 I have to replace the following files to get the Dll exe: BladedDLLInterface.f90 UserSubs_forBladedDLL.f90 UserVSCont_KP_forBladedDLL.f90I Do I follow the same procedure if I recompile...
Wed Jun 22, 2016 7:14 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 250
Views: 134917

### Re: Instructions for Compiling FAST

Hello Mr.Jonkman! with your help I was able to compile the Fast.exe and and the Sfunc successfully! Thank you very much for that! In a further step I compiled the FastDLL.exe successfully by following these instructions: "(Note that if you choose to use the user-defined control options for inte...
Mon Jun 20, 2016 3:40 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 250
Views: 134917

### Re: Instructions for Compiling FAST

Hello Mr.Jonkman, I was able to compile the FastSC.exe. In a next step, I am trying to compile the FAST S-funktion for Simulink! In my understanding I just need to add the provided FASTGateway.f90 and the FASTSimulink.f90 data to the sources folder of Microsoft Visual Studio. But if I do so, I get t...
Thu Jun 09, 2016 2:24 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 250
Views: 134917

### Re: Instructions for Compiling FAST

Hallo Mr. Jonkman, I am new to compiling FAST. First I only want to create the Fast execuable file to get used to compiling. I am using Microsoft Visual Studio 2015 and Fast V7. I followed the instructions of the FASTCompilinginstructions.pdf step by step! But as soon as I start building the project...