## Search found 7 matches

Fri Jun 30, 2017 7:03 am
Forum: Computer-Aided Engineering Software Tools
Replies: 3
Views: 1416

### Re: Tower top loads calculation

Dear Jason, thanks for your reply. I know that I could output these values by using Fast, but the objective is to estimate the effect of the rotor imbalance measured by accelerometer in the lifetime of a machine. I don' see why the aerodynamic forces are not contributed, is the sum of all the forces...
Fri Jun 30, 2017 3:36 am
Forum: Computer-Aided Engineering Software Tools
Topic: Input parameters for MCrunch
Replies: 3
Views: 1455

### Re: Input parameters for MCrunch

Dear Jason,

Best regards,
Alexandre
ETIENNE
Thu Jun 29, 2017 3:13 am
Forum: Computer-Aided Engineering Software Tools
Replies: 3
Views: 1416

Hi everyone, I am using MLife for computing the lifetime of the tower top. For this I try to determine the tower top bearing loads. I have the acceleration measured on the three directions of the tower, so with the second law of Newton I calculate the shear force by multiplying the acceleration by t...
Wed Jun 28, 2017 2:26 am
Forum: Computer-Aided Engineering Software Tools
Topic: Error for writing statistics in Excel with MLIfe
Replies: 0
Views: 7326

### Error for writing statistics in Excel with MLIfe

Hi all, I am using MLife for the fatigue analysis of a tower wind turbine. I use the compiled version of Mlife because i don't have a Matlab license. But when I launch the MLife executable in the windows command with the first input file "Test01.mlif", the windows command display this erro...
Mon Jun 26, 2017 3:25 am
Forum: Computer-Aided Engineering Software Tools
Topic: Input parameters for MCrunch
Replies: 3
Views: 1455

### Re: Input parameters for MCrunch

For the question 6) I found the solution, we just have to put the parameter "BinMeans" to false and keep the "DoLife" parameters to true. But now I have some results that I found unusual (for instance as LifeTime damage about 10^(-18) kN). Thus I wanted to know if it is possible ...
Thu Jun 22, 2017 2:05 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instruction for the Seismic fast version
Replies: 17
Views: 4538

### Re: Instruction for the Seismic fast version

Dear Jean-Pierre,

I can't see if you did it, but for the input file you need to add the extension file in the cmd.

Best regards,
Alexandre
ETIENNE
Wed Jun 21, 2017 2:50 am
Forum: Computer-Aided Engineering Software Tools
Topic: Input parameters for MCrunch
Replies: 3
Views: 1455

### Input parameters for MCrunch

Hi all, I am trying to calculate the lifetime of differents parts of the wind turbine. I am generating Data files via FAST. I tried to use the MLife tools but the program doesn't work (same issues as this topic : https://wind.nrel.gov/forum/wind/viewtopic.php?f=4&t=1760&p=9264&hilit=mlif...