Why do the Strongest Parts Look Like This?
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- Опубліковано 15 чер 2024
- I've wanted to do the history of topology optimization for a while, so here goes! Back to the regularly scheduled content after the move.
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For promotional inquiries: wesley.kagan@gmail.com - Авто та транспорт
The fan broke again
The OnlyFan?
3d print a new fan so you can reprint one every time it breaks
Are you talking about the fan on your GPU radiator?
@@peejay1981 if the onlyFan broke, then perhaps it is time to pay attention to the hub.
Deltron is chron!
When I have to stack books on the floor, I make seriously sure one on dif. equations is on the bottom, in case of a flood. I consider this topographic optimization.
That's a good plan. I didn't dare go too in depth, It's not my field of expertise
Lmao
Matrix algebra on top of that too...
*math*
Advanced engineering mathematics and everything dealing with statics, machine parts design-whatever you'd call it in English, statistics etc. are on the bottom row of my bookcase of work related literature...in case of flooding or some such.
there is one big misconception about "strong" and "optimized". optimized geometry parts are not particularly strong.
they have better weight/strength ratio, yes, for one particular load scenario which they are optimized for.
"optimization" means that we leave only material which is necessary for carrying a particular load, removing all material making part weaker for other (unexpected) loads and therefore unreliable.
I mean, that's also where the bigger chunk of FEA comes in, and if you're truly designing a part that has a real world application outside of normal parameters, you can get close but there's nothing better than physical testing.
But if the part is designed to support a certain load of 500 N, then you can make it support 5000 N. It will have a lot more of material but also will be stronger and support other loads you didn't think of.
@@sayingnigromakesyoutubecry2647 If you use the same volume/weight of metal that supports 5000 N and use optimized geometry, you can support maybe 20000 N.
@@zazethe6553 the idea was to use optimize it for 5000 not 20.000, using the same direction for the forces
@@sayingnigromakesyoutubecry2647 I see, I thought you meant that it would be better to not optimize and just fill the space to make it stronger. I misunderstood your point.
I'm an engineer in aerospace and topology optimization + good metal additive manufacturing is a game changer for some applications. There are dozens of assemblies on rockets and rocket engines that can be reduced to 10% or less of the part count.
Anyway, this was a good quick overview. It's good when people learn about things they won't necessarily use but are becoming a big deal in industry
Did you mean "by 10%" or did you actually mean "to 10%," because wow
@@AmritGrewal31 I meant what I said. To 10%. Complex assemblies are often a requirement of the manufacturing capabilities you have access to. When manufacturing those geometries becomes "click print" (this is an oversimplification) you wipe out parts, fasteners, brackets, etc.
Part of the limitation is price, laser sintering is ungodly expensive.
@@carlosvargasbatman which is why you won't be seeing fully 3D printed planes any time soon, but its a great technology for small and intricate components, especially when high performance is required. As the person above said, in certain cases it can cut down the number of parts in an assembly by an order of magnitude, which can tip the scales in favour of printing when you consider that someone has to assemble all those parts, then someone else has to take them apart and assemble them again during maintenance.
@@carlosvargasbatman The cost is quite reasonable for replacing machined components made of exotic materials.
I saw a powder coat spray head that looked bizarre. Like a machinist setup the CNC lathe wrong. But it was found to be the most efficient shape to minimize waste and speed the process. They found it by taking thousands of random designs, using computers to test them down to 10 then they made those 10 and tested them, and the one they thought would be among the worst was the best.
It amazing that after all this time we still don't know what we don't know.
i wanna see it. Why didnt you leave a name or something lol
We don’t know everything, we just know what we know.
Link? Something I'm interested in reading about
@@mannycalavera121 sorry, I was working for a contractor doing process management in the plant and have no idea which company it was
What an awesome comment👍
Thanks for sharing
I'm a mechanical engineer and have done a bit of FEA and top op over the years. This was a great description and enjoyed the reference to the 100+ year old paper describing the process. My boss and I like to point out that there are few new ideas. Eventually we just learn how to make the old ideas work well enough to be useful.
I just like finding ways that basic concepts are applied, and this is such a good example of something being ahead of its time
Your boss lets you watch UA-cam?! Now that's a new idea! :)
Just curious, what 100+ year papers are you referring to? Would love to take a look at them for more information
@@nickleland2131 1) The fact that you're asking that question makes me seriously doubt you'll be able to understand Michell's work. 2) It's a singular paper, not papers. 3) Watch the video again...if you still haven't figured it out, It's at 5:28 where he talks about A.G.M. Michell's paper that was published in 1904 in the "London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science". 4) Michell's paper provided the foundation for modern topology based optimization techniques.
@@GoogleEqualsEvilFair enough but no reason to be rude about it. Rewatched the video and don’t know how I missed it 10 months ago. I work mainly with CFD components but I was working on a project regarding FEA and wanted to do some extra research. Appreciate the late reply.
The heavy part broke at about 50
While the topologically optimized broke at 45
For 60% weight savings this is well worth it and another iteration where you try to strengthen the area that broke might move the weak point to the same location it was in the original part
Even with a bit of added material 50% weight savings with the same breaking point both at 50 kg or 50lbs is beyond amazing
Yeah, I know the weak spot in this model and I want to fix it, and I have an idea coming up for it…
@@WesleyKagan since you always do crazy projects
Would it be possible for you to tale a 3d model of Bmw s1000rr chassis use topology optimisation on it and then compare it to the 3d printed s1000rr frame you can find online
Just a crazy suggestion
@@FirstLast-tx3yj I had a similar thought: how could this be applied to tubular race car chassis? Lower weight, same strength is very appealing.
@@SteveLowe65 it cannot to a tubular chassis
Carbon fiber Monocoque is the way to go for a single seater
A spaceframe with carbon fiber parts as much as possible for a race car based on a road car
There is a 3d printed exotoc car check it out
@@FirstLast-tx3yj You raise an interesting point, but you can do topology optimization to figure out the thickness of the carbon fiber monocoque at various points in the chassis based on the required loads and safety considerations.
You really hit this from a different angle. I loved the fact that you gave us the historical context and motivations.
I appreciate it, thanks!
pause
If Königsberg is hard to pronounce, you could call it Kaliningrad, its name since 1946. It also spent 200 years as Królewiec in the Kingdom of Poland.
Very true. I felt it was good to keep Konigsberg for simplicity, although I don't do well with pronunciation.
@@WesleyKagan By the way, Edinburgh is pronounced 'Ed-in-bruh'. Really interesting video - thanks!
Fun fact. Königsberg means as much as Kings mountain .
For anyone curious, Bernoulli and Euler's blood pressure measuring method basically involved jamming a glass tube into a live artery and measuring how far the blood climbed up it.
Interestingly this method of measuring pressure is still used today in aircraft - Bernoulli's calculations inspired the Pitot tube which almost all aircraft use to calculate airspeed by measuring the air pressure inside it.
Yes- exactly. It wasn't a pleasant thing to read. But, it worked.
Love this introduction to topology optimization. It had been a while since I've looked into it. It's surprising how much matter is wasted on commonly designed parts, I for one would love to see more topologically optimized designs.
Thanks! I agree, as it becomes more viable for local solutions, i.e cloud based or not needing a week to run a study, I feel it will become a basic design step.
Your video style is really engaging, love the funny bits here and there xD
Brilliant explanation - clear, witty and comprehensive. You should apply for the job of my Engineering professor. I'll see if I can arrange his early retirement.
Thanks! I don't think they would hire me, though hah
Vaguely threatening lol
Gotta say. Seeing the Deltron 3030 on album art on the middle monitor just made me like your content even more. 🤣
Haha, it's a fantastic album! One of my favorites.
Upgrade your grey matter, because someday it may matter.
Came for the engineering and tinkering, stayed for the sense of humor. Loving the videos!
Thanks!
first video of yours i watched. loved your personality and the nonchalant info dumping. love the content!
Great vid. Just an FYI, "Euler" is pronounced "oiler" rather than "yewler" - I didn't find out myself until after maybe a decade of saying "yewler". :P
Math professor didn't correct your pronunciation?
@@dam1917 math professer pronounced it yewler
@@gavinpotter8741 same
My programming professor made sure we knew the right way, he just didn't care which way we said it. 😂
he says it both ways in the video
These videos are hidden gems and you should keep making them.
Wes mate I gotta say I love the way you break concepts down. From one teacher to another, really good job.
The things solidworks is capable of constantly blows my mind
It's pretty impressive.
It's when I try to think of the countless hours of programming and testing that went into it that my brain really fries.
Thank you so much for making this video, and a special thanks for talking about the history of it, which was especially interesting. This video is especially helpful to me as I'm attempting to design a space frame chassis out of cardboard as an application to an FSAE team, and I wanted to learn more about the mathematics involved in calculating something like this. I know it kinda divides the audience sometimes, but I love when you talk about the mathematics and theory behind it, and especially when you apply that theory so it doesn't get boring.
Thanks for watching! Sounds like a cool project. There’s so much to these systems that it’s hard to get a handle on all of them
i dropped out of school for engineering when covid hit, but i love that you explain this enough where I can wrap my mind around it
Just discovered your channel. Your seamless mix of deadpan comedy and scientific explanations delivered in a way that even a simpleton like me could understand was very refreshing. Subbed
The jokes and your delivery are perfect I really like the personal touches
6:24 I've never seen this formally explained. i only ever saw the practical application where you can let gravity pull on a plastic shape, and the shape it forms will be that objects strongest compression shape against gravity when you invert it. For example, the arc that a piece of paper makes when draped between two points (a catenary) will be that paper's strongest shape in compression. i've seen this used with resin casting to make bridge supports or other similar shapes. you can also use a chain to trace out a catenary shaped mold for concrete to make an arch
He's doing everything I wanted to do... generative design, active suspension, active aero, freevalve tech... all homologated into a technological marvel (I'm glad to see someone with the knowledge to do so)
First video I have seen of yours wesley and I'd like to let you know you immediately hooked me and your sense of humer is one I strive for in my videos! You are so well research and I can thank you enough for that!
Love the format!
Your content is really good and different and for some reason is fun even if it's just explaining something scientific it's really amazing
Thank you! I appreciate it!
@@WesleyKagan Your welcome from Saudiarabia
As a layman, I nonetheless found this fascinating. Thank you.
I was just wondering about this. Appreciate the video!
I've been wondering about this for years. Thank you for the answer
This is perhaps one of my favourite videos of yours. I’m an engineer and total Euler fanboy. Like, I tried to convince my wife we could name one of our kids after him. We only have daughters.
I did feel physical pain when you said Euler’s name.
Thank you! It's one I've wanted to work on for a while. Also a big fan of Euler.
She didn't like Eulerina?
@@ellisjackson3355 I have accepted the compromise that we will name our next dog Euler.
Didn’t want to make that her middle name? First name olive
I learn something every time I watch one of your videos. I wish I had the drive to learn complex math. I feel like my high school years were wasted.
2:55 that jab at basically every video trying to explain a topic on youtube earned my subscribe. Good shit
Absolutely amazing video!
First! lol. Seriously, like the concept of this video a lot. Very informative and interesting! Does the new house have a larger shop?
Hmm, I wonder whether you're considering creating a land speed racer :)
Honestly phenomenal video, informative and entertaining! Looking forward to more
Good luck on the move!
Thank you!
Cool. Hey would you design a car wheel optimised for weight? I’ve been wondering what would optimal car wheel look like, if aesthetics and brakes are not an issue.
You have to define "car" really carefully. If it's made out of steel and rolls, I'll give you a nail. If it moves under its own power, I'll give you a helium balloon. So forth.
@@Asdayasman I believe he wants a car wheel though, like the metal cylinders that hold the tires. Cuz a whole car would be difficult, as you described.
Basically look at the bugatti bolide
@@D3nn1s bolder wheels look aero dynamic and good brake cooling. Are these structurally optimal, I have no idea.
I haven't actually seen a full analysis, but I believe it ends up serious to most of the wheels you see which have Y shaped spokes. As in, a single point coming out from the center of the wheel, splitting into two points which go to the outer rim. Several of those repeated. Tend to be the lightest wheels with the most strength. Add this sort of optimization and they become smoothed and curvy with some wider and skinnier parts. Just my general guess and drawing from old memories. I could be way off.
Any progress on the all mechanical computer?
This is my first time seeing your channel and this video is fantastic! thank you!
Really interesting video Wesley, thanks!
Layman here. Those initial designs you flashed up really remind me of biological extractions. Like, mimicking trees and musculoskeletal assemblies. Biomimetics, I think, is the term?
Essentially- yes! Generative design uses similar structure to biological design in formation like plant structure
@@WesleyKagan Superb! Leaving smarter than I came in. I guess Nature has been doing this sort of thing for aeons. Makes sense to sort of crib her blueprints for the some of the starting points.
Hope the move goes well. Bigger castle, bigger booms.
This was a very good video! Educational and funny, I am glad to have found your channel and have subscribed.
This is so enlightening. Thanks.
Your humour is so subtle but hilarious, love it sick video
Short and on point. Thanks!
Thanks for watching!
Incredible video and explanation! It was awesome to see where everything came from and how it came together over time and how technology changed its uses.
This is a great video! Very informative and educational while still being funny and casual!
Great video! Love the wall mounted computer too...
Thank you for your time.
This was fantastic on many levels, but I appreciate the conversation in the comments nearly as much as the content. This (and you, WK) made my day. Thanks.
I completely agree! The conversation in the comments is one of my favorite parts of having a channel.
love your wall-top computer!
That's the best demonstration i've seen. great video
Fascinating topic, well presented, bravo!
Video is put together so well. I didn't lose focus once
Well done summary! thank you!
I am incredibly glad I subscribed to you. Watching your videos require me to be in a certain mental "mood," but I never regret it when I click on one.
Seriously need a part two to this video.
Nice explanation, thank you.
I love your PC setup. Great video btw!
Thank you professor!
one day i might understand more than half of the video, still heaps interesting. love ya work wesley
Cool video! I would love to see more engineering videos like this
That ad after you said you like monetization, goated
Great content, cheers man!
Very nice video, I’ve been wondering about this for a while
Thank you for this. Great explanation 👌
Just noticed Godel, Escher, Bach on the bookshelf - one of my top 5 favourite books. A real classic.
With a budget, I'd do a track car project such:
1 - ground effect maximizing false floor, think carbon, bit like in F1.
2- It's mounted to the four wheel uprights, making it unsprung aero. Yes, unsprung mass, boohoo
3- Light wheels, whatever they look like
4- Chassis that holds payload and to which suspension is mounted.
5- Shrink wrap body to minimise drag and have positive effect on downforce, depending on active aero shapes.
Thank you for the explanation.
Love that you have Godel Escher Bach on display. Wonderful.
bro just by watching a frame of your content i know i must suscribe, that deltron 3030 walpapper, the pc on the wall ufff based
incredible content, thank you
Love that you showed ASUs website, forks up!
Fascinating! Thanks for sharing.
Highly enlightening, your explanations are concise and easily comprehended. You have inspired me to try out these features in F360. More videos of this nature please!
Noted! Thanks for watching!
Great and engaging video my man.
Cool wall computer! Maybe my next computer can be cool like that. Thanks for explaining the math and history behind the weird shapes.
Nice choice of wallpaper there on the right monitor!
GEB is as such a cool book! Thanks for the video!
It’s a great book!
928 and Deltron 3030! Awesome and informative content. What more could one ask for!
I don't know how I found this channel. I'm studying engineering but none of the "real" engineering stuff rather software engineering but this was so interesting and I was glued to my seat the entire time.
This was a really excellent video thank you so much for sharing your knowledge.
I'm an artist interested in hard surface design and trying to understand how to make concept designs with optimised topology look convincing has been something troubling me latley.
fantastic video! subscribed.
Mate what a great video. Keep it up!
Awesome work, makes me want to design stuff!
Dude your videos are amazing 👏
I looked it up the blood pressure thing and ooooooooooh boy, am I glad someone figured out a better method.
Wonderful video. Ill be watching more of your content
Excellent video. Well done.
Thank you very much!
Educational, I liked this!
Just found this channel, and I honestly don't know what its main focus is, but I did definitely like this video!
Very nice lecture of history and other nice things as well, I like!
Glad you enjoyed it!
love your videos man, your channel has ballooned. :)
great video man, ty
Nice wall mounted PC!! Ive never seen one before now lol now I want one!
I'm not an engineer, but interested in cars and bikes. And I want to thank you for such a compact and surely a lot simplificated explanation of topology optimisation! This is awesome and what is peculiar about it is that it looks so bio and close to something created by nature) Cool! Big up and sub! Thank you giving content that internet was originally made for)