I don’t think I’ve ever seen this mentioned, but there’s a strong resemblance to the retractable landing gear on the F4F, a fighter plane built by Grumman. kzitem.info/news/bejne/pa2kp6hmf32hgI4si=R3SzQ7mabYPTNS1q
@1billionidea
2 ай бұрын
hello!Really liked your video,everything was detailed and possible to understand.Is there a possibity to try to wrk with your cae model by myself?Will be really glad if you may send the model)
@mohhammadscharifie5059
3 ай бұрын
bro your doing great , hope you happiness and good luck
@marceloenciso6665
3 ай бұрын
amazing video! please do more!
@PuFFehWuFFEh
3 ай бұрын
Hey. To model your general fasteners as CBUSH elements, my mentor was telling me he uses DOF springs, with Huth or Douglass stiffnesses for all the directions. Your Spring/Damper element type in this version of FEMAP looks similar to what menu I normally look at.. What’s the difference? Cheers, Great video!
@kenkim2687
3 ай бұрын
Thanks for the amazing video. We're waiting on new system analysis!! Hope you'll be back soon...!
@naldofrasco1467
3 ай бұрын
I wish there were more videos
@ismailzambakci
4 ай бұрын
First of all thank you for this resource but why don't you separate the face into upper, lower and leading face as in real situation? Is there any advantage or disadvantage?
@sotoskount
4 ай бұрын
Hello my friend, I have a very similar project and I really need your help. You have done a great job in this video. Please contact me.
@1billionidea
2 ай бұрын
hello! Is model found?
@sotoskount
2 ай бұрын
@@1billionidea Hello. What do you mean?
@renzomiguelsalcedopajuelo7910
5 ай бұрын
amazing video!!!
@TheCarGuy0
6 ай бұрын
Fucking Legendary!
@atg197
7 ай бұрын
Thank you for making this video. Can this program model anisotropic materials such as a solid spruce spar or three layer 1/16" mahogany plywood at 45 degrees to the span for skins? And how are glued joints modeled? My spar is solid douglas fir; all ribs are truss type bent 1/4 x 1/2" douglas fir, skins are 0.105" mahogany on the 45, epoxied down to ribs on 6" centers. Typical strut braced high wing monoplane. Trying to model the contribution of the skin as it buckles is challenging; the wings are already fabricated and I need to know whether to stiffen the skins a bit with some uni carbon on the outside. Appreciate your effort presenting this level of detail. It is fantastic.
@kudacuda4350
9 ай бұрын
this video has a lot of insight into aerospace engineering pliz pliz share more content
@Wilmsr
10 ай бұрын
This is great! Are you planning on doing more of these videos? I would love to see more. Composites aircraft videos would be cool.
@davidwoodward6112
10 ай бұрын
I'm building a Vans RV-10 and the insight into the how and why these structures are interlinked and the stresses measured was fascinating. Thanks for sharing this!
@carolinaandrey2173
Жыл бұрын
Great video. Keep them coming!
@carolinaandrey2173
Жыл бұрын
Love the videos. Keep them coming!
@carolinaandrey2173
Жыл бұрын
Great video. Keep them coming!
@David-if2jz
Жыл бұрын
anyone watching this video probably knows how a stressed skin aircraft wing is built, please dont waste time explaining that get on the the stress analysis please.
@davidwoodward6112
10 ай бұрын
I'm the exception. I'm building an Vans RV-10 and this provides so much insight into why these aircraft are built the way they are.
@atg197
7 ай бұрын
This is completely untrue. I am building a stressed skin wing entirely out of wood. There are no fasteners and the materials are anisotropic. The construction methods are obviously critical in determining how the components are fastened and how that is modeled in FEMAP
@georgeaziz2372
Жыл бұрын
That is amazing thank you so much please we want more please 🙏 please 🙏 please more
@temoorahmed233
Жыл бұрын
Really appreciate the video!!! Can you please share the CAD model, as it would be of great help?
@fixielover77
Жыл бұрын
What will happen if you just defined the thickness before exporting into FEMAP? I'm using solidworks to model my wing. Love the video! This is helping me with my senior design project so far.
@yahatube4010
4 ай бұрын
that is also my question but i did it with surface in solidworks and it works
@blasmolero
Жыл бұрын
Thank you for sharing the video!! I run FEMAP as well, anything you need you can contact me, a pleassure to help, thanks!. Best regards, Blas.
@georgeaziz2372
Жыл бұрын
That was amazing journey thank you so much please keep posting such amazing educational videos
@naldofrasco1467
Жыл бұрын
Thank you so much for sharing your knowledge. The tips, tricks, shortcuts and best practices you show us here are really appreciated and I am sure will be referenced by others for many years. Looking forward to your next video. I watched the entire tutorial and keen on working again with Femap. Last time I tried it was when it was embedded in MSC Nastran for Windows (~1998). Would love if you could share this 3D geometry in a link. If possible, I would like to propose a further tutorial using this model, since you have already set it up: 1. Include contacts between skin and ribs, stringers (even if it's just glued i.e. linear contact) 2. Modal analysis 3. Inset any solid model bracket at the root of the wing and connect shell elements at the root to some solid elements 4. Increase the load until some section of the wing's material just reaches yield and do a non-linear analysis Always appreciated and thankful.
@airandspaceanalysis1561
Жыл бұрын
Thank you for the comment! I can definitely do a video on those topics in the future
@naldofrasco1467
Жыл бұрын
Wow, you share so much knowledge in this lengthy tutorial. I watched the entire thing; same as your previous one. It really is appreciated. Thank you so much.
@airandspaceanalysis1561
Жыл бұрын
Thank you, I appreciate the kind words and I'm glad you enjoyed!
@saturnv7204
Жыл бұрын
It's great that you are publishing more content. I will download FEMAP right away and follow your tutorials. I'm just starting to do some analysis for my space projects so I was excited to come across your channel. Please keep making videos.
@airandspaceanalysis1561
Жыл бұрын
Thank you, I'm glad you enjoy and are planning to follow along! I'll keep making videos for sure.
@snower13
Жыл бұрын
I think the cross-over is necessary because the deployment truss arcs are not parallel to each other. Cross strut photos here. There could still be a physical pivot point or connection there but I'm not sure why there would need to be one. www.nasa.gov/sites/default/files/styles/full_width/public/thumbnails/image/lm-2_drop_test_mar-may_1969_s69-28261.jpg?itok=BztSCgiR www.nasa.gov/sites/default/files/styles/full_width/public/thumbnails/image/lm-2_drop_test_may_7_1969_s69-33045.jpg?itok=r027-l4z www.nasa.gov/sites/default/files/styles/full_width/public/thumbnails/image/lm-2_drop_test_apr_3_1969_s69-29355.jpg?itok=Q0ZSlQ38 www.flickr.com/photos/128712737@N03/30925799915/in/photostream/
@airandspaceanalysis1561
Жыл бұрын
Great point! Those pictures are awesome, how did you find them?
@snower13
Жыл бұрын
@@airandspaceanalysis1561 Just Googled image of various search terms. And spent way too long doing so! Here is another one but it looks more like a test article. www.fi.edu/sites/default/files/styles/gallery_large/public/General_LunarLander_05_FranklinInstitute.jpg?itok=Y3FPxZTu
@naldofrasco1467
Жыл бұрын
Thanks so much for giving up your time to produce such detailed and valuable content. I am sure all Femap users will appreciate the transfer of knowledge for years to come. I'm already looking forward to the next one; and don't worry about the length of the video, since it's really in depth and informative.
@airandspaceanalysis1561
Жыл бұрын
Thanks, I'm glad you enjoy! Definitely will be making more videos!
@sashakarachun6423
Жыл бұрын
Thank you for good Femap video. Make Femap great again! (i`m joking, Femap is already great)
@airandspaceanalysis1561
Жыл бұрын
Thanks for watching!
@saturnv7204
Жыл бұрын
Amazing! Can you make a video about analysis of pressure vessel of some manned spacecraft (or space station)?
@airandspaceanalysis1561
Жыл бұрын
Absolutely! I'm planning a future video of the Apollo capsule structure! That analysis will be significantly more complex though, so I instead of doing it live like this video I may prepare it ahead of time and just go through the process step-by-step.
@gaganaut06
Жыл бұрын
They designed these without any of the tools you used, atleast not of the capability you have
@airandspaceanalysis1561
Жыл бұрын
Yep, certainly over 50 years ago they did not have the current software I'm using, or anything close to it! This was more of a fun exercise and a chance to learn about finite element models with some cool historic hardware rather than a recreation of how it was done back in the day. NASTRAN itself was first created in the 1960s, although I'm not sure if it was ever used on the Apollo program spacecraft. Anyways, I said in the video a few times that you can analyze this structure relatively easily with hand calculations by finding all your strut vectors, which is probably what they did for this.
@mach5engineer661
Жыл бұрын
Are you a professor?
@airandspaceanalysis1561
Жыл бұрын
Nope, I'm an engineer! I've done some teaching informally but not as a professor or anything
@troygiampietro9570
Жыл бұрын
@@airandspaceanalysis1561 Are you currently still in the industry?
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