Designing a large airliner wing for a university project now. I've made a sketch with all (38) the ribs, by copy-pasting a couple of times. It actually extruded and split succesfully, a MUCH FASTER way if you have many ribs! However I'm strugling to find a way to do the 25 stringers efficiently...
Great video. I'm designing an aircraft in CATIA V5. I've designed the tapered wing with ribs and spars as surface but I'd like to make surfaces bodies with giving them thickness. Because of the taper, it gets messy when they have thickness, can you explain how I can do it?
Hi there. I think I showed this topic in a further video. Because of taper, thicknesses are generally a pain. My advice would be to: 1. Decide the thickness of your surface. 2. Create an offset surface using the thickness as the offset dimension. 3. Pad your surface profile and use the 'split' functions in 3d to cut the solid with your two surfaces. It sounds like a long way of doing things but it is the most robust way of doing it. Does this help? If not ill make a video for you.
TheCADMan Thanks for the reply. I offset the rib surface as the rib thickness then split the offset rib surface with the front and rear spar and wing skin. Then using boundary tool I create the boundaries of new offset surface and the original rib. Then using multi-section volume I create the solid rib with thickness. Is this a good way to create solid ribs, spars and stringers? It looks quite good but it is kinda tiring to do all the split and boundary work. Thanks for your help
Erdem Eskioğlu Making wings into solid elements, if done correctly, does take a lot of work, but its mainly done so that if you change anything, the system is set up very robustly so you don't get any issues. For ribs, you should create a arbitrary sketch to make a solid 'billet' which which you then cut using the spars and wing skins. for spars, the same applies using the wing skins to cut it, and wing skins should be done in a similar way using an offset surface. Stringers should be able to be 'filled' in the 3D workbench. I'll try and publish a video over the next few days to clarify this.
Hi! Thank you so much for your videos! I got one question: I'm trying to create the sketch of the stringer in order to later positionate the sketch on that point of the edge and then create the stringer. I try to start by creating a sketch in the XZ plane but it doesnt allow me to draw anything. Is there something in particular I need to take care? Thanks in advance!
I don't know if you are still active or not. But I actually experience a similar problem to one of the comments below.After creating the points for the ribs, it is not accepting to create a line from the rear spar to the front spar. Any idea of how to approach such issue?
Hi, Cd you plz get me a link for CATIA V5: The Basics - Tutorial 6: Wireframe & Surfacing Part 1 at which you have designed above wing initially. I did n't find that video. Thanks
I enjoyed your tutorial very much. Could you please tell me how did you do the stringer profile? I saw that you haven't included that in the video. I get a hard time making a sketch over the "base airfoil", where the stringer starts, because it's base isn't a line, but a curve that follows the profile. I'd be glad if you could show me how that profile was made, on your wing. Thank you!
Hi there, the stronger was made just by sketching on the same plane as the aerofoil. The sketch is separate so all I did was use the same plane that the orginal aerofoil was built on. It doesn't have to be the case - you can select a plane any where. I think projected the skin geometry into the sketch so I could align the stringer to the skin. hope this helps.
I see, so once the sketch is made it has to be projected on the skin, or at least its base. I'll try it once I get home, and tell the results. Thank you very much for your answer. I really appreciate your work.
great video ! i found it very helpful, my only issue is about the split operation, wich automatically delete one of the sides. ticking the "keep both sides" option is useless as it apply only for the first selected element (for example when using the "near" operation to separate top and bottom trailing edge surfaces, after splitting from the whole skin). Anyone knows how can i solve it ? thanks!
Very useful video you helped me a lot!But I have a question. How did you find the points for the tip of the wing? I mean somehow you made the original airfoil a bit smaller.
Can you let us know where, or can you provide the MA-15 design specs that you speek of in your tutorial? I apologize if you already have elsewhere. By the way, your videos are superb.
the dimensions of this wing is different from the wing you designed in part 1 ! can you please tell me the dimensions you used for designing this wing ? i am finding it difficult to design the same wing you have done in this video !
I really appreciated your tutorial, it is really helpful. I was following all your instruction, till I found an error message when performing sweep. The error message was: "Extrusion operator: a selected contour is self intersecting. This configuration cannot be used in a extrusion operator. Choose a wire that is not self intersecting." Can you help me with this problem? Thank you!
Hi Barto. The error is saying that one of your sketches isn't a solid connected line. If you look at your sketches in 3D (ie not in the sketching workbench) and you see any black dots within your line then it's showing that the sketch is discontinuous. connect it at this point and it should work.
Hello, great video btw....Do you mind showing us how you made the stringer profile, and how to possibly make multiple stringers ( say 5 or more all round the skin surface.) could you also show us how to import the completed wing into part design and add the necessary thickness and matterial to finish off the whole process. Cheers!!
The completed wing can be imported bot by bit or as a while with one of my other videos next in the series. Thicknesses are added to surfaces using the "thickness" icon in part design. I'll try and fit a bit more of the stringer design into the next series :)
the line equations might not fit CATIA's programmed cases. if this is still relevant, i also had a problem creating the line so what i did was make a blend to join the two and created the lines along the blended surface.
Hello TheCADMan, I really like your tutorials,they have helped me a lot, I would like to ask you a big favor if it is not too much to ask, maybe you could share your excel sheet in your tutorials, since the design of your excel sheet has the complete configuration of the wing including the dihedral and the others configurations, I know it may be too much to ask, but it would help me a lot at this moment to be able to design the wing correctly, I thank you in advance, regards Juan
So nice this tutorial sir👍👍
next lecture comming soon sir
Designing a large airliner wing for a university project now. I've made a sketch with all (38) the ribs, by copy-pasting a couple of times. It actually extruded and split succesfully, a MUCH FASTER way if you have many ribs! However I'm strugling to find a way to do the 25 stringers efficiently...
You sir are amazing! Extremely helpful and clear videos. I hope there will be more in the future :)
Great video.
I'm designing an aircraft in CATIA V5. I've designed the tapered wing with ribs and spars as surface but I'd like to make surfaces bodies with giving them thickness. Because of the taper, it gets messy when they have thickness, can you explain how I can do it?
Hi there. I think I showed this topic in a further video. Because of taper, thicknesses are generally a pain. My advice would be to:
1. Decide the thickness of your surface.
2. Create an offset surface using the thickness as the offset dimension.
3. Pad your surface profile and use the 'split' functions in 3d to cut the solid with your two surfaces.
It sounds like a long way of doing things but it is the most robust way of doing it.
Does this help? If not ill make a video for you.
TheCADMan Thanks for the reply. I offset the rib surface as the rib thickness then split the offset rib surface with the front and rear spar and wing skin. Then using boundary tool I create the boundaries of new offset surface and the original rib. Then using multi-section volume I create the solid rib with thickness.
Is this a good way to create solid ribs, spars and stringers? It looks quite good but it is kinda tiring to do all the split and boundary work.
Thanks for your help
Erdem Eskioğlu Making wings into solid elements, if done correctly, does take a lot of work, but its mainly done so that if you change anything, the system is set up very robustly so you don't get any issues.
For ribs, you should create a arbitrary sketch to make a solid 'billet' which which you then cut using the spars and wing skins. for spars, the same applies using the wing skins to cut it, and wing skins should be done in a similar way using an offset surface.
Stringers should be able to be 'filled' in the 3D workbench.
I'll try and publish a video over the next few days to clarify this.
How to thick all this elements up? I have huge problems to do this "simple" thing after creating all the complex surfaces :(
Hi! Thank you so much for your videos!
I got one question: I'm trying to create the sketch of the stringer in order to later positionate the sketch on that point of the edge and then create the stringer. I try to start by creating a sketch in the XZ plane but it doesnt allow me to draw anything. Is there something in particular I need to take care? Thanks in advance!
I don't know if you are still active or not. But I actually experience a similar problem to one of the comments below.After creating the points for the ribs, it is not accepting to create a line from the rear spar to the front spar. Any idea of how to approach such issue?
Does anyone have a reference on the dimensions and sizing calculations for a stringer, couldnt find much online. Help needed!
Hi, Cd you plz get me a link for CATIA V5: The Basics - Tutorial 6: Wireframe & Surfacing Part 1 at which you have designed above wing initially. I did n't find that video.
Thanks
very useful tutorial on CATIA V5
many thanks
LOL :)
I enjoyed your tutorial very much. Could you please tell me how did you do the stringer profile? I saw that you haven't included that in the video. I get a hard time making a sketch over the "base airfoil", where the stringer starts, because it's base isn't a line, but a curve that follows the profile. I'd be glad if you could show me how that profile was made, on your wing. Thank you!
Hi there,
the stronger was made just by sketching on the same plane as the aerofoil. The sketch is separate so all I did was use the same plane that the orginal aerofoil was built on. It doesn't have to be the case - you can select a plane any where. I think projected the skin geometry into the sketch so I could align the stringer to the skin.
hope this helps.
I see, so once the sketch is made it has to be projected on the skin, or at least its base. I'll try it once I get home, and tell the results. Thank you very much for your answer. I really appreciate your work.
+Andrei A no no, just sketched within the wing box somewhere so you can constrain the sketch itself to the wing skin.
+TheCADMan Can you please walk through how to project the skin geometry to the new sketch. I am a bit confused on how to project...
@@andreia4551 Hi, were you able to make the stringer profile, i am having a head time
great video ! i found it very helpful, my only issue is about the split operation, wich automatically delete one of the sides. ticking the "keep both sides" option is useless as it apply only for the first selected element (for example when using the "near" operation to separate top and bottom trailing edge surfaces, after splitting from the whole skin). Anyone knows how can i solve it ? thanks!
Very useful video you helped me a lot!But I have a question. How did you find the points for the tip of the wing? I mean somehow you made the original airfoil a bit smaller.
+Irene Maria Makrigianni the original airfoil points were from airfoiltools.com. I just popped them into a spreadsheet and scaled them up.
+TheCADMan Thank you! I hope you upload more videos soon!
Can you let us know where, or can you provide the MA-15 design specs that you speek of in your tutorial? I apologize if you already have elsewhere. By the way, your videos are superb.
the dimensions of this wing is different from the wing you designed in part 1 ! can you please tell me the dimensions you used for designing this wing ? i am finding it difficult to design the same wing you have done in this video !
airfoil tools will generate the points for you, just make sure to add the chord
please do a tutorial on how to draw a central wing jig
love the vids. Any more coming soon?
I really appreciated your tutorial, it is really helpful. I was following all your instruction, till I found an error message when performing sweep. The error message was:
"Extrusion operator: a selected contour is self intersecting. This configuration cannot be used in a extrusion operator. Choose a wire that is not self intersecting."
Can you help me with this problem? Thank you!
Hi Barto.
The error is saying that one of your sketches isn't a solid connected line. If you look at your sketches in 3D (ie not in the sketching workbench) and you see any black dots within your line then it's showing that the sketch is discontinuous. connect it at this point and it should work.
Hello,
great video btw....Do you mind showing us how you made the stringer profile, and how to possibly make multiple stringers ( say 5 or more all round the skin surface.) could you also show us how to import the completed wing into part design and add the necessary thickness and matterial to finish off the whole process.
Cheers!!
The completed wing can be imported bot by bit or as a while with one of my other videos next in the series. Thicknesses are added to surfaces using the "thickness" icon in part design. I'll try and fit a bit more of the stringer design into the next series :)
Very good!
Sir, I tried to do the Ribs as yours, but it didn't allow me to end the normal line to the leading edge curve. Do you have any idea why it happened?
the line equations might not fit CATIA's programmed cases. if this is still relevant, i also had a problem creating the line so what i did was make a blend to join the two and created the lines along the blended surface.
@@samaashleigh thank you! But this is not more relevant 😊
Hello TheCADMan, I really like your tutorials,they have helped me a lot, I would like to ask you a big favor if it is not too much to ask, maybe you could share your excel sheet in your tutorials, since the design of your excel sheet has the complete configuration of the wing including the dihedral and the others configurations, I know it may be too much to ask, but it would help me a lot at this moment to be able to design the wing correctly, I thank you in advance, regards Juan
perfect
stop at 8:25