in the Input-Files for tower/blades for FAST or MODES, there is a column with the fractional height of the sections. I do not understand why there is the same number of rows and elements. The way i see it, there must be 1 extra row (because 3 elements have 4 nodes; two inner nodes and 2 outer nodes).
An example: I have 3 sections with data, lets say a tower. This results in a 3-row input file with fractional distance from 0 to 1:
Fract. | MassDens. | Stiff.
0.0000 | 1300 | 7000E4 (SEGMENT 1)
0.3000 | 1000 | 5000E4 (SEGMENT 2)
1.0000 | 750 | 2000E4 (SEGMENT 3)
This would be a compatible input file. Now, how do i read it? Does that mean that Segment 1 resembles 0% to 30% of the total length, segment 2 30% to 100%? what does segment 3 stand for in this context?
I hope my problem is understandable. If necessary, I will provide a drawing in order to make myself clear.