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Saurabh Mhatre
США
Добавлен 12 авг 2010
Material Research_Ceramic Studio_Objects of Rotation
Material Research_Ceramic Studio_Objects of Rotation
Просмотров: 78
Видео
Materials, Processes, and Systems (MaPS) Group @ HarvardGSD + Bertoldi Group ( Harvard SEAS ) Tile
Просмотров 362 месяца назад
www.saurabhmhatre.com/auxetic-surfaces
Swimming with the Whale Sharks - Mexico
Просмотров 1582 месяца назад
Swimming with the Whale Sharks - Mexico
MaP+S + Bertoldi Grp _Inclined Auxetics_Buckling_HighReso_Actuation
Просмотров 182 месяца назад
MaP S Bertoldi Grp _Inclined Auxetics_Buckling_HighReso_Actuation
MaP+S + BertoldiGrp_InclinedAuxetics_Buckling_HR_Dslr
Просмотров 222 месяца назад
MaP S BertoldiGrp_InclinedAuxetics_Buckling_HR_Dslr
MaP+S + BertoldiGrp_InclinedAuxetics_Buckling_HR_Dslr1
Просмотров 92 месяца назад
MaP S BertoldiGrp_InclinedAuxetics_Buckling_HR_Dslr1
MaP+S + Bertoldi Group_IA_Buckling_BagLess_Side Elevation
Просмотров 292 месяца назад
MaP S Bertoldi Group_IA_Buckling_BagLess_Side Elevation
MaP+S + Bertoldi Group_IA_Buckling_BagLess_Side Elevation_Channel Side
Просмотров 82 месяца назад
MaP S Bertoldi Group_IA_Buckling_BagLess_Side Elevation_Channel Side
MaP+S + Bertoldi Group_IA_Buckling_BagLess_Front Elevation
Просмотров 62 месяца назад
MaP S Bertoldi Group_IA_Buckling_BagLess_Front Elevation
MaP+S + Bertoldi_IA_Buckling_POC Display
Просмотров 272 месяца назад
MaP S Bertoldi_IA_Buckling_POC Display
По большей части - бесполезная ерунда. Но вот заслонка для света на последнем кадре может быть использована как диафрагма для регулировки не только светового, но и воздушного потока. Правда на всех этих ребрах будет быстро скапливаться пыль. А чистить её очень неудобно. Поэтому все равно чушь.
All the examples look nice and beautiful, but none of them seems to be the best option to do the work they are designed for. That table.. just seems it going to blend if I put just 5 or 6 kg of weight, and you say it will be afordable, just tell me how much for that table. Just useful for decoration, very beautiful.
It is surprising that some of the content of this video was included under the name of several normally well regarded institutions, - several claimed possible mechanisms involving interpenetrating surfaces somehow folding flat 'thorough' each other and illustrated by computer generated renders - make the whole thing reminiscent of an hastily contrived end report of an uncompleted undergraduate assignment.
It's a tent too
I learn most of this stuff from pop-up books
This is amazing. I love it :) <3 But PLEASE, if you are going to profit from this, let it be not just from selling finished products, please also sell us software or a software plugin we can use to design our own variations. You may do it under whatever license, just please let us at least make our own variants and the maker community will give your project SO much publicity. You can require profitable products designed using it to stamp Kiriform on the product/description, whatever you need to do.. of course fully open source would be IDEAL but... we live in a society and all that Again, amazing, great work all
this is so cool. I love technology
Cool to see this idea being played with at larger scales, but this certainly isn't new. I remember seeing these kind of flextures in paper craft books and Australian Geographic stores in toys 15-20 years ago.
Very interesting. A use perhaps in kinetic art forms which is an interest of mine at the moment. As for patenting,,, good luck with that as it is in essence “origami”.
WOW, this is amazing. I love it. It reminds me of AI. It's full of potential for anyone to use, cheap, and waiting for millions of problems waiting to be solved by anyone. ❤
I'm sure idiots will buy it.
The vast majority of use case examples almost completely failed at the function that was being demonstrated. (ie a lamp shade that doesn't shade the lamp)
You are correct . Its not a finished ready to use product yet . I covered a 'breadth' of speculative applications it can be used for and I am currently going in depth to see which of these make more sense than the others and what kind of changes / developments are needed for the same.
@@SaurabhMhatre0 fair enough
Animatronic frog throught???
Had thought of a jumping robot ... lets see.
This is a solution looking for a problem... all the examples are useless
Beautiful! This is an inspiration for further work, and for students. Thank you.
2차원에서 3차원의 변화는 공간과 열과 뒤틀림을 수반한다는 기본 원리 블랙홀 해석에 단초가 될 것 같기도 하네요 블랙물질과 우주대폭발은 큰 블랙홀의 폭발이고 그 잔향이 현재 의 블랙홀로 남은 건 아닌지 ....중력이라는 물리적 연결성은 존재하고 그 시작점은 중량이 존재하고 공간이 발생하는 끝 지점은 열과 중력(연결성) 특정 지점에 이르러 원형을 이루며 ...
It is also act as an emergency shock absorber that stays flat and deploys when needed
What???
Nice video. I look forward to the integration of bimetallic and NiTinol materials for temperature and electric actuation.
Эту штуку можно использовать на пистолетах
Flexures are cool, but IRL, every part that I encountered that used flexing as a mechanism, eventually failed due to fatigue. It's Usually the first thing to go.
Those designs were not optimized for lifetime. If you do not exceed conservative elastic limits then some materials will last almost for ever. A snap action 'Microswitch' can be made with incredibly long mechanical lifetimes. Many other examples of long life flextures like truck leaf springs. Even a metal retractable tape measure has very long life absent abuse.
Bistable compliant mechanisms are pretty cool. Right up there with oragami and 3d printing.
Very cool
So you patented natures Torus?
Sure it's fraud, but it's profitable, so why wouldn't they?
>rigid mechanisms slander >shows a mechanism that can be made from off the shelf rigid parts much faster than from CNC laser cut elastic material
based comment
This just has no practical uses lol
I was thinking the same. Everything I can think of already has a much simpler design and easier to produce
If it was ultralight, it could make an interesting kite.
A 2-string kite that allowed deformation on demand could be cool.
Nice 👌
Even if patented, thanks for sharing your work. The inspiration for other engineering students is invaluable, I can already start to explore flexures like this but using centrifugal phenomena and or thermal expansion as actuation mechanisms for more autonomous operation or different environmental conditions, and cite your work as a source of inspiration/data.
Given the right geometry and materials this could make a great universal soft griping tool for light duty on a robotic manipulator! Hmmm possibilities
Look up Nitinol stone extractors. I think combining the technologies might be even better.
What’re the chances of accessing an STL or model file? (Assuming 3D printing is a viable means given its not isotropic) I wanna build one to better understand the mechanism
I’m doing my thesis in biomed engineering atm and am looking at different techs for biomedical devices
I feel like this could be useful for small robots and like rescue bots
is that a homestuck reference!!?!
Add a small hidden spring to the two layered one could make a cool ball 🏀 or game for kids
I do have a version like that - a keychain i carry with me :)
Wait if you can make turbines, you can make drone rotors... So the driving car example, could also be a flying drone.. can you tell your software to optimize for Lift ? Haha😅
The domain chart in 4:00 is really cool ❤ I can see you already you thought of most, would love to see a car/drone hybrid! And also investment into architecture especially Shelters and Tents. If you can get the coin creases down good and fold a big tent into a bag like a folded map, that would be something great to invest in ✨
Thanks for positing all of these. Especially this one. This one gave me inspiration for an application of something like this!
It's alive!
this reminds me of the spirographs from homestuck
Yes, principle is same !
Кулачковый привод на любой вкус😊
Если каждую половинку можно сделать из множества сборных сегментов, то возможно изготовление каркаса для быстровозводимых сооружений и зданий, типа вигвам, палатка, юрта, чум. Возведение каркаса одним движением. При чрезвычайных ситуациях очень полезно иметь такие сооружения и для активного отдыха тоже подойдёт.👍
That's correct ! For large scale structures fabricating it out of a single sheet is limiting hence it can be looked at as a kit of parts. I surely plan to look at the emergency shelter application - have been very inspired by Buckminster Fullers 'dome being transported by a helicopter' image !
How can it work as a turbine if the twinned blade surfaces are twisted in opposite chiral directions? Love that you used grasshopper in rhino. My favourite
Great point. I surely havent gone in depth at all but it will need some development . I agree right now in the render the two sets of opposite fins are similar but for that application one set could be biased to have more surface area , lightness etc as compared to the other. The other could just be frames without a surface so as to offer no resistance to the wind. Rhino + Grasshopper made my life so much easier !!!!
…レンズに応用できるかも知れない
でも風車自体は嫌気性廃ガス管に使われてる、農耕機具だとどうだろうな 俺はレンズで浮かんだ、昔は眼鏡掛けてたから
複雑すぎると壊れた時に面倒
The adult in me thinks this is an outstanding achievement. The child in me is just reminded of Homestuck.
Neat, thank you! Reminds me of the "pop-up books" I read as a child -- wonder if that was inspiration?
Haha.. I know exactly what you mean . This was vet inspired by Origami, Kirigami and Active- Bending principles. I didnt have a pop-up book when I was a kid but do have a bunch of them now :) . 'Elements of Pop-Up' is my favorite one !
@@SaurabhMhatre0 Nice, thank you! Looks great; just added it to my wish list! :)
Where I get files. I like 3d print them
I am yeat to compile some for 3d print . But here is a link to someone who had made a version some time back . - cults3d.com/en/3d-model/art/3d-flexible-kiriform-re3d
The turbines are so awesome!! And also the half wall at 3:50 didnt see the flat version of it, can you please show it. Also do you think you could make a shape like an igloo? Where theres ceiling structure above, but a door or even a wide open arc like a cave , similar to the half curved wall, but bigger and with overhead ❤
The half wall for now is just a render but it can be made using different diameter fins connected together. Think of a polar array of fins where all the fins are not same but have different (global) diameters
If super big, this would make a greate dome! ❤ Also! Do you think you could make an oval shape??? This looks like it could be an Incredible Tent! Especially if it can folded when flat 🤯 Trying to imagine a print in-place flat lockable joints so that it can be folded x4, opened, and locked. I imagine a coin with a crease in the middle.. turning 90° to enable/disable foldind of the joint. =⦶= open, can fold =⦵= closed, cannot fold Like a map, open all the folds, lock all the joints, twist... Bam! A tent The joints need to be really good, flat, and durable, and with a color indication of opened joints to help close all quickly. Would love to know what you think, and especially if you think this can be oval 🙏 Awesome work!
Yes it can be oval shape. Based on the length (spiral) of the individual beams. And the coin -crease example is right on point - to make that a possibility. For the major part of the project I was always seeing that 'being able to cut this out of a flat sheet is an advantage' but I also know for certain (larger) scales other fabrication methods can be used. I have a prototype which I 3d printed which is a working mechanism right off the print bed. The 3d printing also allows for programmability of the 'cross-sections' of the beams which opens up a lot of opportunity.
Where you say cross section, you mean like giving the beams some shape, like an airplane wing to produce better lift ?
Thanks a lot for the response ! ❤ Really awesome work! would love to see you progress
I can imagine a sci-fi scene with someone from space throwing this down at it turning into a micro fusion glowing generator haha
would be a cool VFX animation
For the longest time I used to use the 'Jetsons' car as an analogy :p
This is so awesome ❤ I'm guessing you could make this out of a material that can be cured.. for example the table example, make it with a uv resin, and make it hardened, remove tabs, give it glass like qualities, incredible
Oh wait... It's complient.. meaning already Ridgid and under tension/compression haha my bad. But the idea still stands.. somehow (maybe with heat) relax the tension, without deforming somehow, and reform it solid. I think I'm just interested in making the final object super solid, even if it's a one-way process. 3:07 I noticed you put some weight on the table with your hands and it easily deformed.. So I wonder how you can start with the complient mech, but end up with a glass-like hard object which will not deform. I think uv resin might be awesome for this , Thanks and All the best!
Yes, for particular applications , the deployable aspect might not be necessary.
Exactly , I am pursuing that direction too :). And that's correct - the table in the video isn't as stable as it should be . For now it was just a scaled up version of the small mechanism. I have made some changes in the smaller models which increase the stability quite a bit which I soon plan to implement in Table 2.0.
This demo doesn't look very stiff...it would appear that there are tradeoffs between the flexibility needed to allow deployment, vs. the stiffness required in applications? Any comments on the "envelope" of this relationship? Cheers!
@@lohikarhu734 That’s correct . In the end it depends on the application. There are prototypes I have made ( not in the video) which are stiffer based on the material but also geometry. Certain geometric changes like self interlocking tabs on the beam, a central tie do make it stiffer. Planning to integrate those it in ‘Table 2.0’ 😅