The Mathematics of Mechanisms (

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The Mathematics of Mechanisms (

Рет қаралды 215,195

Күн бұрын

Entry for the 2023 Summer of Math Exposition
Sources:
- R. L. Norton, Design of Machinery: An Introduction to the Synthesis and Analysis of Mechanisms and Machines
- D. Eberly, Intersection of Linear and Circular Components in 2D, www.geometrict...
The code used to make the animations can be found at:
github.com/mti...

Пікірлер: 134

@Axman6 11 ай бұрын

I’m only a few minutes in, but I wanted to say this video is beautiful; the colour scheme, the sizes of everything, the animations, the fading in and out. These are little details that are hard to get right, well done- subscribed ❤

@YTomS Жыл бұрын

Criminally underrated channel, what a nicely done video.

@godfreypigott 11 ай бұрын

Based on ONE video posted 3 weeks ago, where your comment was posted two weeks ago?

@slepenb 9 ай бұрын

The accent makes it tough to follow

@godfreypigott 9 ай бұрын

@@slepenb It is easy at 75% speed.

@bigbluebuttonman1137 Жыл бұрын

The math of mechanisms is super fascinating to me. Going into a machine shop is like being a kid in a candy store for me. So much stuff, and every little detail has its reasons for being there in one way or another.

@magnuswootton6181 9 ай бұрын

yeh levers and cranks fit into maths perfectly.

@thecalculusofexplanations Жыл бұрын

Brilliant, I taught some of this stuff to engineers once upon a time, I wish I'd had this video to show them. Well done

@JaredBrewerAerospace 11 ай бұрын

Perfect! Deep and simple is more essential than shallow and complex. It doesn't matter how many times I have taught or been taught the same topics, everyone at any level has something to gain from the way you present these fundamentals.

@gianlaager1662 Жыл бұрын

Very nice animations and great video. Please keep it going with videos like this.

@sundown456brick 11 ай бұрын

Im loving this movement, SoME is the best thing ive ever seen great to have found you, looking forward for more content, keep the good quality🎉❤

@zacharytoth1065 11 ай бұрын

Im taking a Mechanical Design class right now, and am definitely sharing this video with my friends. Its a very clear and concise recap of some of the topics covered in class, and will be helpful in getting a better grasp of the topic.

@PhilipMurphyExtra 11 ай бұрын

Such a well produced video, Glad KZfaq suggested it.

@ZimmervisionCZ 11 ай бұрын

This is really well done! Well-explained, beautifully designed and animated. This immediately makes me want to go out and program a 2D mechanism-based video game

@wellscampbell9858 11 ай бұрын

@mtirado Excellent video, flows well while covering the topic completely enough to serve as video reference material. It's definitely going in my tech reference links. Thanks!

@Haagimus 11 ай бұрын

Great video, very well explained mechanics, looking forward to your future content 🤙🏻

@mani_mincraft 11 ай бұрын

This is so cool! That circle approach is such an amazing method!

@Jaylooker 11 ай бұрын

The discrete Fourier series describes a mechanism which can draw any closed curve using epicycles. If every coupler mechanism can only draw closed curves as well, then there must be an equivalence between two coupled discrete Fourier series and a single discrete Fourier series. Describing what mathematically represents the coupling between the two discrete Fourier series is difficult.

@guillegilcriado6879 11 ай бұрын

This video is so well produced. Great explanation, simple yet complete. The animations are so cool and well made. Overall, amazing video!!! New sub here! ^^

@adissentingopinion848 11 ай бұрын

That last five bar linkage just threw me through a loop and subsequently jammed me such that √4ac = 0. Immaculate lesson into such a complex topic.

@bdzack2226 11 ай бұрын

This video is having too much knowledge and awesome way of representation. Crazy, keep up the great work. THANKS

@agrathnam 10 ай бұрын

Beautiful graphics and great explanation. Looking forward to more videos from you.

@tenix6698 11 ай бұрын

OMG, That's something I've been thinking about for a long time, but never got to it. Thank you for providing such a good video on this topic!!

@derektauffner8828 11 ай бұрын

Fantastic video and loved the animations. Well done.

@yaacheese8643 9 ай бұрын

You need to make more videos on Mechanisms! Awesome video, I subscribed hoping to see more from you in the near future!

@Mark-gd5yz 10 ай бұрын

More! Please. You have a rare talent: Use it.

@moralboundaries1 3 ай бұрын

so interesting and enjoyable, thank you for the lesson!

@pierreabbat6157 11 ай бұрын

I've written a program to simulate the Chebyshëv linkage, which traces the Nilla curve. The bottom is nearly flat, while the top is nearly an arc. At four equally spaced times, it's at three points in a line on the bottom and at the middle of the top. It looks like the cross section through the middle of a Nilla cookie.

@zzznah 11 ай бұрын

Congratulations on making this very informative and beautiful video! As an aspiring KZfaqr I know how much hard work it takes

@danielpitts6913 11 ай бұрын

Very nice. Makes me want to write a simulator for this. One more project to the backlog lol. It doesn’t seem like it would be too difficult to calculate some physical properties for these after determining big positions based on the constraints. Like torque or linear force.

@alfredovillal5263 9 ай бұрын

Exelent Video,, very nice.

@jormando2002 10 ай бұрын

Wow... It is amazing, thank you so much for this video ❤

@senthilkr1970 11 ай бұрын

Fantastic videos, amazingly done. 👏👏👏

@ico-theredstonesurgeon4380 11 ай бұрын

This video Is really well done! I would love It if you could also talk about the forces that act on the mechanism. I am a robotic enthusiast and that would be really helpful

@sahhaf1234 11 ай бұрын

exactly the video i was looking for.. pls continue..

@sonu-jangir 9 ай бұрын

So helpful video... 🎉🎉🎉 Thanks for sharing... ❤❤❤

@sashiyendamuri1018 Жыл бұрын

Very nicely explained with simple graphics...

@Garglicious 11 ай бұрын

Cannot wait for more videos from you !

@nttn3666 11 ай бұрын

This is so cool, please make more videos on this topic.

@jerry-yu7yi Ай бұрын

i really really love this video

@bubbaloo8049 11 ай бұрын

Gran video, el mejor por lejos. Muy bueno !!!

@shivabalaji6668 11 ай бұрын

Extraordinary 🤩🤩🤩🤩😍 pls upload many more videos like this

@_krzysio_6910 8 ай бұрын

In Robotics those are so simple mechanisms... We have really great methods there - check it out. We just use matrixes for everything.

@TheMagicFellow 11 ай бұрын

Beautiful; breath-taking

@1022darkar 9 ай бұрын

exelente video sigue con tu contenido

@nahuelpiguillem2949 11 ай бұрын

Wowwwww mannnnnn, it's greatttt. Pretty clear

@mohammadkaheel973 10 ай бұрын

Amazing 👏

@user-wi6ee4db3m 11 ай бұрын

Please make more video's like this. ( like if any one wants video's like this )

@geraldopontes37 11 ай бұрын

Excelente vídeo! Thanks you

@AllenKnutson 11 ай бұрын

¡Que rico! And while manim has its place I'm especially pleased to see explorations of other visual options. (The rectangular boundary is an especially unusual choice and I wish I'd thought of it!)

@hjfreyer 11 ай бұрын

Very nice! I'd love to learn more about how you disambiguate between the cases with multiple solutions. Like, for each place with ambiguity do you just have to pick either the positive or negative root?

@ToMMiTTo 11 ай бұрын

Big clap per your video! Awesome.. please do follow up videos. I would suggest to use a math editor for formulas (latex or similar), so they are more easily readable

@user-gh2dj9nc6y 10 ай бұрын

Beautiful

@simongross3122 11 ай бұрын

This is so clever and fascinating

@chienbanane3168 11 ай бұрын

This is great for developing walker linkages!

@petrkisselev5085 11 ай бұрын

Great presentation !

@user-yb2qd7hx9l 11 ай бұрын

깔끔하고 멋지네요. 감사합니다~

@sifatahmed1413 11 ай бұрын

Excellent

@herbertattema9890 3 ай бұрын

the algorithm did you bad, how am I only now finding this channel

@mrshodz 11 ай бұрын

Great explanation.

@christianprice4049 11 ай бұрын

This is GORGEOUS!!!

@Spiegelradtransformation 10 ай бұрын

Well Done.

@MissPiggyM976 11 ай бұрын

Very interesting, thanks!

@HannyDart 9 ай бұрын

Some time ago i was trying to analyze a rather complicated 3d mechanism using this "distance & circles" approach but for some reasons my equations were no longer symbolically solvable. Ive verified my numerically obtained solutions several times and they were correct so the equations had to be correct too. Since then I was interested in a proper way to do the math behind it...

@polyhistorphilomath 11 ай бұрын

The discussion of jamming position was interesting. I have to wonder if there is a way to limit or constrain the configuration space during synthesis such that the number of degrees of freedom can only ever increment or decrement (by one). Similar to the K-map concept the intent would be to prevent simultaneous changes and thus minimize undesirable or indeterminate behavior.

@SimpleLangSolution 11 ай бұрын

God tier video and explanation.

@anandjoshi9716 11 ай бұрын

Really good

@PeterNerlich 11 ай бұрын

Fascinating video! I'm most interested in the inverse problem, finding a mechanism that produces a certain path. In your example, you show a how to derive a solution of an easy instance of this problem, where a simple four bar linkage is sufficient, and using only three "samples" of position+rotation of a segment that should be reached by the mechanism. But how would one go about synthesising for a path like the one in 13:32?

@jairoc.peralta 6 ай бұрын

Buen video, compa

@juancarlossanchezveana1812 10 ай бұрын

Amazing

@databang 11 ай бұрын

Thanks for the video. Very nice illustrative presentation that’s easy on the eyes and labeled well. I’m curious what software you use to construct models and animate them, is it Adobe AE or something more specific?

@onadja 8 ай бұрын

Excellent animation and great explanation! What editing software did you use? THANKS !

@WarzoneMasters 10 ай бұрын

you need to put anice song or melody as an intro it will make the video better. all the video is amazing

@francomaccaroni795 11 ай бұрын

very nice video, good job

@arkadiusz4133 10 ай бұрын

I would be very pleased if you will make a few videos how to solve some practical tasks about power, inertia, moments etc. In mechanisms

@disaffected_npc 11 ай бұрын

So, I've been trying to figure out how to visually represent some stuff - I'm quite hypermobile/have some pretty peculiar stuff going on with my nervous system and I want to find a way to create a hard map of the range of motion of my bones/joints, and then somehow overlay that with my internal/imagined map of my body. For most of my life I've had a bunch of involuntary tics, and since I was a child they were dismissed as a baked in problem of being a flappy autistic person and thus to be pretty much ignored - but upon realising that they were a manifestation of problems with connective tissue/rooted in weird stuff with my nervous system, I started engaging with/adjusting some of them - one in particular had been constantly subluxing my jaw and had (as wild as this sounds) resulted in me losing an enormous range of my sense of touch/pressure detection. Fixed the issue with my jaw and trained myself to pay attention to what my body was actually trying to do and over the past two years my sense of touch/proprioceptive map has exploded outwards from my neck/shoulders/spine. I feel like this kind of map of where my body actually can move, and being able to mark onto that which ranges - while possible, were destructive/overstretched joints would be incredibly useful. It also feels like something that someone must already have done to some degree. Do you have any suggestions on resources to look into? I'm not a mathematician/programmer of any kind - but this feels like the most promising tool with which to build the physical/mechanical part of what I need to create to make useful/discrete statements about what's been happening

@realcygnus 11 ай бұрын

Quite nifty !

@tonyfarah7685 11 ай бұрын

Nice video, but i just wanted to understand more about equations, so i hope you will explain it in detail please I liked your visualization ❤

@farhatali3634 11 ай бұрын

Its a beautiful video. Thanks for all the effort and thanks for sharing with all of us. Simply amazing. Kind request to share which software or programming language you have used for creating those beautiful animations. Regards.

@emil_richard 9 ай бұрын

This is so well produced! Can you recommend any program where anybody can test such configurations easily?

@jakobr_ 11 ай бұрын

Can complex numbers be applied to this math? I’m curious because there’s a lot of rotation, and complex numbers seem to fit in wherever you see rotation.

@mtirado 11 ай бұрын

Complex numbers are just 2D vectors, so yes!

@derektauffner8828 11 ай бұрын

This is close but not entirely true. There is an isomorphism between 2D vectors and complex numbers. And you need to be careful on how you treat the two if you want one to be the other! There is a fantastic answer on Math Stack Exchange if you google 2D vectors as complex numbers. @@mtirado

@dsgowo 11 ай бұрын

You can also use conformal geometric algebra to describe not just rotation, but also translations as well as the circles defining the possible positions of P2 and P3 (or similar circularly constrained points in a linkage). Many of the calculations done in this video, such as finding the intersections of two circles or constructing a circle from three points on its perimeter, are expressed very elegantly in this language. To top it off, it generalizes very elegantly to 3D and higher dimensions, so you can get all the benefits of the complex numbers as well as quaternions and dual quaternions inside CGA.

@pavelperina7629 11 ай бұрын

I once tried to simulate heusinger gear of steam engine and failed at combination lever. If I recall problem is that contrain is something like end and mid point are allowed to move on two circles and distance is defined by distance of mechanical joints. Third point is on some curve which I cannot properly describe. Other link has the same or similar contrains and intersection of these curves is a solution. Maybe it can be solved for tens of possible positions, drawing line segments between solutions, repeating for other links, finding intersections of line segments approximating these two curves and subdividing intervals to get more precise result. I just can't imagine how people designed that 150 years ago or so, because solving something like 4-5 equations with trigonometric functions is hard. Maybe tthey did not need to know precise position of joint, they just made sure that it satisfies number of degrees of freedom and that it combined movements of two levers with a proper ratio and made some smaller model from sheets of metal with holes and rivets.

@hbenzd5301 11 ай бұрын

Gooood..

@M0rshu1 11 ай бұрын

This is essentially the math you will be doing in the last 3 semesters of a mechanical engineering bachelor’s.

@MrAminmohamed 8 ай бұрын

Please make another video of more examples of building mechanics without anything just basic geometry. This way kids in middle schools will be able to use their compas and rulers to draw prototypes

@tombouie 11 ай бұрын

Interresting, Giving an arbitrary output motion, ?might the entire linkage soultion set be solved for?

@migfed 11 ай бұрын

This is a superb video. Just one suggestion with all due respect, try to vocalise better, there were some parts that I could not get it. And another thing, try to use an equation editor for displaying your algebra. Even PowerPoint has got one. So once again, let me congratulate you for that great video.

@labkome 11 ай бұрын

Please create more videos bro, respect from indonesia

@BradleySlavik 11 ай бұрын

At 9:43 the |U|^2 is represented by |U| in the bottom equation that threw me until I saw the mistake.

@bradhayes8294 11 ай бұрын

A crank slider is a four-bar linkage also.

@mtirado 11 ай бұрын

Yes but it has a prismatic joint. I focused on revolute joints only.

@bradhayes8294 11 ай бұрын

@@mtirado I had a mechanisms class as an undergraduate mechanical engineering student and an advanced analysis and synthesis of mechanisms class as a graduate student. We used primarily the vector loop-closure method for mechanism analysis. We used both analytical and graphical methods for mechanism synthesis. One of the final projects we had was to derive the position, velocity, and acceleration equations for a 10-bar John Deere level-lift mechanism. I also had an advanced dynamics of machinery class as a grad. student. One of my favorite analysis methods was the Chace vector analysis method for 3-dimensional mechanisms.

@SimplexonYt 9 ай бұрын

at some parts of the video u have to get the square of a vector or multiply two vectors with each other But how are you supposed do do that should i multiply/square the single components of the vectors, should i take the cross product of them, should i use the dot product or something different?

@Maria-ig6yd 11 ай бұрын

But egual identicall component on a movements pedals not have a problem, on a movements, but if not is, have a problem

@neycorelbolanos8910 10 ай бұрын

Gracias. No te imaginas cuanto tiempo estuve buscando un vídeo o un canal como este. Por ahí 10 años buscando , en mi idioma español bo existe tal cosa . En inglés hay mejores vídeos pero éste es el mejor , justo lo que necesito. Gracias.