Why Machines That Bend Are Better

  • Birt 6 dögum síðan

    VeritasiumVeritasium

    Lengd: 12:52

    Compliant mechanisms have lots of advantages over traditional devices. SimpliSafe is awesome security. It's really effective, easy to use, and the price is great. Check out SimpliSafe here: simplisafe.com/veritasium
    I visited the Compliant Mechanisms Research group at Brigham Young University and spoke to Professor Larry Howell:
    www.compliantmechanisms.byu.edu
    At the above link, you can download 3D-print files to make some of the objects in the video, plus learn more about compliant mechanisms.
    What I learned about compliant mechanisms I summarize in the 8 P's of compliant mechanisms:
    1. Part count (reduced by having flexible parts instead of springs, hinges)
    2. Productions processes (many, new, different enabled by compliant designs)
    3. Price (reduced by fewer parts and different production processes)
    4. Precise Motion (no backlash, less wear, friction)
    5. Performance (no outgassing, doesn't require lubricant)
    6. Proportions (reduced through different production processes)
    7. Portability (lightweight due to simpler, reduced part count designs)
    8. Predictability (devices are reliable over a long period of time)
    Special thanks to Patreon supporters:
    Donal Botkin, James M Nicholson, Michael Krugman, Nathan Hansen, Ron Neal, Stan Presolski, Terrance Shepherd
    Animation by Alan Chamberlain

Paul Jordan
Paul Jordan

I always wondered how that clutch works in a chain saw

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E_M_E_T
E_M_E_T

I never had any doubt about the performance and simplicity of these mechanisms, but I was always very skeptical about their durability. Take the titanium hinge, for example. I was impressed by the durability of the plastic grabber, but metals are a completely different story. Metals bend and permanently keep their new metallic shape. How many times can that hinge go from -90 to 90 and back until the metallic bonding of the titanium permanently breaks down? More importantly, how does one test its strength once it is in use? I don't want to see that hinge used on an important satellite in outer orbit if we have no way of making sure it is properly maintained. Machines with separate parts show symptoms of particular pieces becoming worn out, but a mechanism made up of only one piece doesn't.

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Pietro Del Franco
Pietro Del Franco

That’s just a freaking spring though..

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Ossobuko
Ossobuko

he has a funny giggle.

2 klukkustundum síðan
lostn65
lostn65

looking at the thumbnail I keep seeing two people having sex.

2 klukkustundum síðan
Juancholoco
Juancholoco

I had the same face as the professor every time he was interrupted lol.

2 klukkustundum síðan
Hermentotip
Hermentotip

*I am Bender, please insert girder*

2 klukkustundum síðan
Rushi
Rushi

Wow, mechanism is really interesting

2 klukkustundum síðan
Asen Tahchiyski
Asen Tahchiyski

Bender Bending Rodriguez likes this

2 klukkustundum síðan
erik61801
erik61801

damn buddy those veneers stick out like youre bugs bunny 🤦‍♂️

2 klukkustundum síðan
George Washington
George Washington

he had my attention when he mentioned my home state

2 klukkustundum síðan
Genroy Noisis
Genroy Noisis

7:50 is just so unreal.

2 klukkustundum síðan
YK D
YK D

Hhhhh Bunch of Stupids

3 klukkustundum síðan
Rex Holes
Rex Holes

Airplanes bend

3 klukkustundum síðan
xenochaosxc
xenochaosxc

Some cool stuff, some theory, some NASA bs...everything I expect from this channel.

3 klukkustundum síðan
ly Ari
ly Ari

so iPad Pro 2 are better iPad ?

3 klukkustundum síðan
TheFalconJetDriver
TheFalconJetDriver

These devices are great catalyst for thinking about new ways to do things. However my problem with these devices they have very low cyclical Properties. Ie built in failure rate for things such as switches in automobile windows. Ford, GM, and Chrysler want things to fail in a timely manor. After all if they lasted for ever who would buy replacements? Especially for consumers items. For a one time device like a nuclear bomb I am all in. Seeing this video reminds me of the wizard of OZ movie! They want you to see one thing but not what it really is.

3 klukkustundum síðan
Justin Boy
Justin Boy

Research Flat Earth

3 klukkustundum síðan
draunt7
draunt7

Mechanically compliant engines?

4 klukkustundum síðan
flash flood99
flash flood99

What about Scissors?

4 klukkustundum síðan
forrest225
forrest225

The elephant reminds me of a student presentation I sat in on at AIAA DCAS. The project involved using a water tunnel and taking measurements of a wing with a control surface. The control surface was deflected to different angles. The presenter realized the night before the presentation while making slides in the hotel that the control surface was moving towards and away from the wing along with being rotated. All of their calculations were made assuming that gap was constant. OOPS! It was still a great presentation, honestly it was one of the most well presented that year. Live and learn :)

4 klukkustundum síðan
MoneyAndPeople
MoneyAndPeople

There are less points of failure but probably less durability as well, meaning either system would work well, unless you were placing them in a place where you cannot access, like a satellite in space, or the hair trigger of a nuclear weapon, not in a tool box - the idea of flexible parts is cool, but its not useable - and moving in this direction would be bad as now our tools would have planned obsolescence, but the landfills would love us!

4 klukkustundum síðan
Vasilis Papanikolaou
Vasilis Papanikolaou

Reusable fuses are an example of compliant mechanisms we learned in physics. When the wire gets hot it bends and removes contact until it cools down again.

4 klukkustundum síðan
david chappel
david chappel

I too can build useless things, like my kids

4 klukkustundum síðan
Rosen Petkov
Rosen Petkov

This is amazing.

4 klukkustundum síðan
Cole Helterbrand
Cole Helterbrand

Watching this makes me inspired to get my Mechanical Engineering degree asap lol

4 klukkustundum síðan
Nanqette Pierre
Nanqette Pierre

Would you be apply these concept with composite metals?

4 klukkustundum síðan
T Lee
T Lee

I wonder how much if any byu got paid

5 klukkustundum síðan
Prasanth Selvadurai
Prasanth Selvadurai

iPhone 6 has joined the chat

5 klukkustundum síðan
you2tooyou2too
you2tooyou2too

Cool stuff (also see MEMS)! An unmentioned but critical consideration is the strength of the thin, flexible domains and what loads are applied. Also, for many of the illustrations, there were no load limiting protective bumpers or range-of-motion limiters. We've been using these things since the '90s at the latest.

5 klukkustundum síðan
josh ziesmer
josh ziesmer

didn't get a million cycles out of the "compliant" gas pedal in my car, had to pop rivet a piano hinge to it.....

5 klukkustundum síðan
YDP
YDP

That’s weird to see the elephant mechanism even though I guessed it wouldn’t move.

5 klukkustundum síðan
Ahmad Faris
Ahmad Faris

Finally youtube recommend me real knowledge

5 klukkustundum síðan
FancyHat
FancyHat

Does anyone else see the aphex twin logo in the thumbnail?

5 klukkustundum síðan
unionse7en
unionse7en

You like FLEXURES? do ya? here Dan's channel is VERY educational) : https://www.youtube.com/watch?v=PaypcVFPs48

5 klukkustundum síðan
Re Sinka
Re Sinka

4:48 is this how chicken head work ?

6 klukkustundum síðan
Russ Storm
Russ Storm

How can i get a hold of one of those magical elephants? (I am serious)

6 klukkustundum síðan
IS THIS LOSS?
IS THIS LOSS?

Plundering poluttion per plastic part produced

6 klukkustundum síðan
TurboHawkV6
TurboHawkV6

I never thought I'd find one piece items so freaking interesting. :o

6 klukkustundum síðan
Ghost Reportin'
Ghost Reportin'

Pretty girls at BYU

6 klukkustundum síðan
Raphaelus13
Raphaelus13

Great video.

6 klukkustundum síðan
Matts Utube
Matts Utube

Dianna is incredible and perfect... I know you get this a lot, but seriously, you shouldn’t let her get away

6 klukkustundum síðan
Benjamin Franklin Likes cArS
Benjamin Franklin Likes cArS

Matts Utube he’s married dude

4 klukkustundum síðan
Johnny S.
Johnny S.

yeah but when a single-piece object breaks you may not be able to fix it (or just not a good idea to do it) meaning you'll have to replace it with a new one, talking about taking it to space it means you have to store several backups meaning more weight to carry leaving you on the same spot you were with an object made out of little parts. take cars for example, made out of lots of pieces, yes it also increases the chances of a fail but its also easier to find the damage and repair it even faster. but yeah we get the idea, just have to make it reliable enough for the task.

6 klukkustundum síðan
Robin Lefebvre
Robin Lefebvre

bending steel ... welp hope in humanity restored.

6 klukkustundum síðan
bigTHOR77
bigTHOR77

That is awesome

6 klukkustundum síðan
Andy Parrish
Andy Parrish

Bender Bending Rodriguez approves of this.

6 klukkustundum síðan
diogenesofSinope87
diogenesofSinope87

Great episode, you can 3D print titanium?

7 klukkustundum síðan
gabb05
gabb05

i bet that guy could make a masterpiece complication watch

7 klukkustundum síðan
Dan Marcoux
Dan Marcoux

subscribed

7 klukkustundum síðan
Zebus Aqua
Zebus Aqua

My eyes about popped out of my head when i saw the titanium.

7 klukkustundum síðan
International Mutual Neutralist Party Templates
International Mutual Neutralist Party Templates

Perhaps some counter arguments ???

7 klukkustundum síðan
emperorSbraz
emperorSbraz

Bender be like hold my beer...

7 klukkustundum síðan
Paul Fuoco-Binette
Paul Fuoco-Binette

At 1:10 we observe the elusive dueling smart people pinch

7 klukkustundum síðan
5Lvideo
5Lvideo

7 klukkustundum síðan
Weston Covey
Weston Covey

imagine the possibility to create mechanics without the need to make round springs.

7 klukkustundum síðan
dreska
dreska

The problem is that if it's broken, you can't fix it. You have to replace it.

7 klukkustundum síðan
MSPaintBurger
MSPaintBurger

thought this said "Why Vending Machines That Bend Are Better" i was wrong

7 klukkustundum síðan
Tomás Lima
Tomás Lima

Am I the only person that sees Freddie Mercury instead of the guy?

7 klukkustundum síðan
Kyle Marvich
Kyle Marvich

I disagree with the comparison to vice grips; Better compared to standard pliers. Otherwise, cool

7 klukkustundum síðan
tmengucor
tmengucor

My dick is a compliant mechanism.

7 klukkustundum síðan
Gavin Helgeson
Gavin Helgeson

Dumb, bending WILL break.

7 klukkustundum síðan
byw
byw

I'm not saying bendy things aren't cool. But when you engineer them to where they are fatigued within normal operational range it's not cool at all.

8 klukkustundum síðan
94kenDOLL
94kenDOLL

Such an interesting video, blows my mind

8 klukkustundum síðan
ryannayr140
ryannayr140

Hey the compliment mechanism in my xbox one elite controller was the failure points (LB and RB). I guess a million pushes just was too much.

8 klukkustundum síðan
Mavado Roaster
Mavado Roaster

not buying the thing with the grips

8 klukkustundum síðan
D Solis
D Solis

I love physics girl reactions... I just see here and hit like!

8 klukkustundum síðan
Dyno Mite
Dyno Mite

You just got a new subscriber with this awesome video. Big new fan of the content. All of these make perfect sense to observe. I'm going to go and learn from this man.

8 klukkustundum síðan
Sportz
Sportz

You looked like an 8 year old boy every time he brought out a new toy! And, I could literally see the light bulb go off over Physics Girl's head at 9:22

8 klukkustundum síðan
mufasas1lion
mufasas1lion

I want to work with you. we are going to make artificial muscle. check your inbox.

8 klukkustundum síðan
Conor Maguire
Conor Maguire

I would really love to know the fatigue point of those components

8 klukkustundum síðan
Liang Jiang
Liang Jiang

disadvantage: impossible to repair, because the "hinges" are dependent on covalent bonds?

8 klukkustundum síðan
Nobody Noel
Nobody Noel

Can't wait to live in our cheep plastic dystopia

8 klukkustundum síðan
Hello everybody
Hello everybody

Bender approves

8 klukkustundum síðan
Xäp 8
Xäp 8

I’m loving engineering

8 klukkustundum síðan
Sleudgehammer
Sleudgehammer

Gimbles are fun. Kerbal space program taught me that!

8 klukkustundum síðan
domantfly
domantfly

thats not what she said

8 klukkustundum síðan
Siggi R
Siggi R

love your videos! Totally inspired by this mechanism as an engineer

8 klukkustundum síðan
GoldSkula
GoldSkula

Go bender Go bender

8 klukkustundum síðan
over00lord Unknown
over00lord Unknown

Wow. I'm excited for the future of microprocessors and medical nanobots! :D

8 klukkustundum síðan
InnSewerAnts
InnSewerAnts

How do they solve material fatigue creating cracks that wear through where it bends, when it was still about some form of plastic, okay.. fatigue-resistant plastic I don't know about, fine.. But then titanium and steel? *takes a bit of high quality machined steel, wiggle, wiggle... wiggle, snap, there you go..* But these supposedly last millions of cycles? Impressive, but how?

8 klukkustundum síðan
InnSewerAnts
InnSewerAnts

+Heather Shipley *Hands a toilet paper roll* To clarify I mean a few instances where objects seems to have spots they bend too far to keep from fatiguing and cracking very long.

7 klukkustundum síðan
Heather Shipley
Heather Shipley

poop

8 klukkustundum síðan
Lee Haelters
Lee Haelters

Great subject. Great guest. And when you are alone on camera, you have a fine way of explaining the subject, and a wonderful speaking voice. But, you love the sound of your voice so much, that when you share the camera with your guest, you walk all over whatever he is trying to say. You did not let him finish a sentence, it seems like not even once, but who's counting. I was getting so aggravated that I was shouting at the monitor for you to SHUT UP. A serious impediment to success of the video. No subscribe.

8 klukkustundum síðan
Diji
Diji

Complaint > Traditional

8 klukkustundum síðan
v44n
v44n

This stuff is just incredible, I understand It but how they come up with the designs?! Its looks like stuff design by a super machine learning AI

8 klukkustundum síðan
Dana Coleman
Dana Coleman

That was a fun watch! Thanks Derek!

8 klukkustundum síðan
I Cant Walk
I Cant Walk

Bender would like to know your location

9 klukkustundum síðan
Konseq
Konseq

I do wonder if those switches last as long as regular switches.

9 klukkustundum síðan
You-Tube Junkie
You-Tube Junkie

Great video up to the part about NASA, NASA is nothing but a total hoax stealing the taxpayer's money. NASA and Disney, two fantasy worlds, making billions.

9 klukkustundum síðan
Daniil Paulo
Daniil Paulo

This is all great, but less parts that bend means work hardening over time. Eventually they will get brittle and fail without being fixable. Sure they're cheap and have their place in machines, but personally I prefer more mechanical parts I can fix or replace. Work hardening a metal would be almost irreparable because you would most likely remove the temper attempting to fix it. Not the end of the world but that's what I see in all of this. This would be cool in microchip making transistors smaller than currently possible.

9 klukkustundum síðan
Schwantz Klopfer
Schwantz Klopfer

THERE I WATCHED IT! ARE YOU HAPPY NOW YOUTUBE?!?!?!

9 klukkustundum síðan
Mathew F
Mathew F

incredible, this could revolutionize all our tools and machines as well as probably having huge implications in the way we continue to make tools and interact with them in the future.

9 klukkustundum síðan
Leanid Klimenka
Leanid Klimenka

I nailed the elephant 8)

9 klukkustundum síðan
John Smith
John Smith

Machines that bend ova are V niceeee

9 klukkustundum síðan
Christopher Hill
Christopher Hill

More of this.... Please!!

9 klukkustundum síðan
serax
serax

that clutch is really amazing. the otherstuff is really great but I can use that clutch RIGHT now

9 klukkustundum síðan
Benjamin Franklin Likes cArS
Benjamin Franklin Likes cArS

serax that’s not a new concept. Clutches like that are being used in different applications. It’s just made of plastic which is cool

4 klukkustundum síðan
Vincent Cheong
Vincent Cheong

This is my first exposure to compliant mechanism and it is really intriguing! Thanks for sharing!

9 klukkustundum síðan
LoneRenegade
LoneRenegade

"Safing and arming of 'nucular' weapons". "WHAT?" I thought you were about to tell him off for mispronouncing nuclear.

9 klukkustundum síðan
Upsidedownblackhole PJH
Upsidedownblackhole PJH

Hello from Utah my sister attends BYU

10 klukkustundum síðan
Krstan Lukic
Krstan Lukic

Thank God for smart people...

10 klukkustundum síðan
cabbagelady
cabbagelady

imagine trying to fix a car with a plastic set of tools

10 klukkustundum síðan
p.as.in.pterodactyl
p.as.in.pterodactyl

When you have an experience induced by salvia divinorum, you encounter a lot of stuff like this - the same aspects of compliant mechanics, only with a hyper-dimensional topography.

10 klukkustundum síðan

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