multisection surface error

[Marien]

Good morning.
I have to draw the surface of a shape design wing and have already drawn the profiles that I need:clearly if I make here a multisection surface by selecting the initial and final profiles, it performs. the problem is that I would like to stretch an end, in this way:and I would like to create a multisection surface that starts from the top profile of the root and terms on this curve I created. the mistake that gives me is this:

 

[gianni55]

Hi.

some considerations:

1) It seems to me that in order to obtain a wing profile it is preferable to first use the profiles that you designed and apply the bandage only in a second time on the obtained profiles (recovering an extruded surface and then cutting the surfaces obtained previously).

2) to use multisection, you should at least select the guide curves, even if I fear that in this case only the opposite one to the connection is usable, while the other could degenerate the surface

3) I add that (from what I see) only use a simple filling.

if you cannot post the file

Hi.

years ago

 

[th.element.80@gmail.com]

bye marien
Catia is doing exactly what you're asking for.
use section1, and it turns it into section2, but maybe you don't care about this.

in a similar situation, I would do the surfaces without considering the fitting,
surface 4 outlines above, and surface 4 outlines below.
in this way the wing section is not modified, and then the 2 surfaces (lower and higher)
of the wing you will have to line them with an extrusion surface that will have as section your connection.

if the fitting is to be part of the trajectory, you will have to change your final section,
to be consistent (the section and the trajectory must have a common point).

 

[Marien]

attached the zip file.

 

[Marien]

I managed to do this, but it turns out "apuntito" because of the edge. Perhaps I should do instead of 1 closing curve,2 , and then make a chord. What do you say?

 

[gianni55]

I managed to do this, but it turns out "apuntito" because of the edge. Perhaps I should do instead of 1 closing curve,2 , and then make a chord. What do you say?

Alar surfaces are not my field, so I refrain from giving suggestions: You better make some attempts until you find what suits you best.

from what I saw in the file there are other comments to make, so I send you a private message.

Hi.

 

[Marien]

Hello, I renew my thanks for the time you dedicated to me. I send you pictures of the wing without winglet (now you know what they are:biggrin that I managed to do thanks to your advice. definitely better.