Compliant Mechanisms Lecture 1 Part 1

This video is a raw unedited lecture about compliant mechanisms given by Professor Jonathan Hopkins at UCLA. This lecture provides an introductory overview of the field in the context of examples and explains why machines that bend are better than machines that guide their relative motions using traditional rigid joints.
If you are interested in learning more about compliant mechanisms in a more entertaining and engaging way, be sure to see Prof. Hopkins’ Compliant Mechanism Design (Professional Video Series) playlist on this channel.
Additional course resources are posted to Professor Hopkins’ website:
www.flexible.seas.ucla.edu
Copyright:
Some of the content used in this lecture was collected over a decade ago prior to my heightened knowledge and concern of copyright issues. As such, it’s possible that some of the content in this lecture may constitute a copyright infringement. Thus, if you identify any image that belongs to you and you are not ok with me having it in my lecture, please contact me directly and I will remove or update any part of these lectures to be in compliance with your wishes. I’d also be happy to acknowledge you in this description. My email can be found on my website.
Disclaimer:
Responsibility for the content of this video is my own. The University of California, Los Angeles is not involved with this channel nor does it endorse its content.

Пікірлер: 27

  • @forglory9537
    @forglory95372 жыл бұрын

    My favorite part is where he explains what a dvd box does like he’s talking about an artifact recovered from an ancient ruin.

  • @Winther83

    @Winther83

    2 жыл бұрын

    Yeah made me feel ancient as well, since i used the predecessors of that Archaic technology like Vinyl and cassettes in my childhood.

  • @billpengelly7048
    @billpengelly70482 жыл бұрын

    Compliant mechanism design is an amazing field with so much potential. I’m very pleased to see more research being done In this area. We need better design tools and more engineers trained in this field.

  • @zurichsee706
    @zurichsee706 Жыл бұрын

    So great that Jonathan shares this with all of us we love this topic. Thanks professor.

  • @rego23
    @rego234 ай бұрын

    Thanks a lot for sharing these jewels. I'm currently trying to solve an industrial problem with a compliant mechanism and I enjoyed every second of these videos

  • @zhipengchen-jn8fk
    @zhipengchen-jn8fk Жыл бұрын

    very good😁

  • @mikkelhugobruun4512
    @mikkelhugobruun45123 жыл бұрын

    Super good lecture ! Thank you so much for uploading this !

  • @BrainSlugs83
    @BrainSlugs832 жыл бұрын

    I absolutely love you for making this available online, thank you! One request I would make is, on your slides that contain hyperlinks, please include QR codes; it makes it easy easier to follow links (both online, and in person). Thanks!

  • @jamesrivettcarnac

    @jamesrivettcarnac

    2 жыл бұрын

    This is good advice that I will adopt on all my future presentations

  • @xinyuwang9364
    @xinyuwang93643 жыл бұрын

    Thanks for posting these!!

  • @rakshitpaliwal8778
    @rakshitpaliwal87782 жыл бұрын

    Where can I am able to get this lecture presentation (.pptx).

  • @vincentnguyen386
    @vincentnguyen3862 жыл бұрын

    Thanks for the excellent video

  • @SussyBacca
    @SussyBacca2 жыл бұрын

    Wow this is a great lecture, thanks for making it available 😀 I'm working on the course with my kids

  • @marlonsaveri
    @marlonsaveri2 жыл бұрын

    Is it possible to introduce such curse into the UCLA online courses systems in order to get a certificate?

  • @Derlaft
    @Derlaft Жыл бұрын

    23:30 about birds: IMO not really a fair compare. Birds use a different mode of flight rather than "conventional" airplanes (incl Wright Brothers one). The problem isn't that we cannot make complaint wings, the problem is that we don't know the math and how to produce efficient ornithopters passing certain scale limit. P.S. absolutely love youtube for recommending me this.

  • @dianaaliciachipanaaguilar1983
    @dianaaliciachipanaaguilar1983 Жыл бұрын

    Thank a lot

  • @wolpumba4099
    @wolpumba409916 күн бұрын

    *What are Compliant Mechanisms?* [1:16] * *Mechanisms:* Devices that transfer or transform motion, force, or energy. * *Compliant Mechanisms:* Mechanisms with flexible elements that bend and deform to achieve motion, storing strain energy in the process. *Examples of Compliant Mechanisms:* [3:03] * *Ancient:* Bow and arrows, crossbows, catapults, bellows. * *Modern:* CD cases, backpack straps, shampoo caps, tweezers, electric shavers, leaf springs, skateboards, diving boards, prosthetics, tennis rackets, bowflex machines, playgrounds. * *Medical:* Endoscopic tools, clamps, prosthetic knee. [8:25] * *Material Properties:* Architectured materials with engineered properties (e.g., negative Poisson ratio). [11:34] * *Energy Harvesting:* Devices that capture ambient vibrations and convert them into electricity. [13:46] *Why Nature Prefers Compliance:* [16:49] * *Efficiency:* Compliant structures require less energy for movement and maneuvering. * *Robustness:* Flexibility allows for impact absorption and stress distribution, preventing damage. [18:54] * *Adaptability:* Compliance enables accommodation of imperfections and changing environments. [20:47] * *Versatility:* Allows for complex motions and functionalities with fewer components. [22:18] *Challenges of Compliant Mechanism Design:* [26:28] * *Complexity:* Designing compliant mechanisms is more intricate than rigid-body systems. * *Uncoupled Design:* Achieving independent control over functional requirements is difficult due to the interconnected nature of compliant elements. [27:04] *Future of Compliant Mechanisms:* [23:52] * *Robotics:* Nature-inspired robots incorporating compliance for enhanced adaptability and efficiency. * *Aerospace:* Compliant wings for improved maneuverability and fuel efficiency. * *Continued Exploration:* Expanding applications in various fields due to their inherent advantages. i used gemini 1.5 pro (2024-05-15)

  • @AverageJoeInnovationsLLC
    @AverageJoeInnovationsLLC2 жыл бұрын

    I am a big fan of compliant mechanisms. However, I've always disliked this often used comparison between traditional vise grips and compliant pliers. It's misleading. Vise grips aren't entirely rigid. Just as with bolts, the moment contact is made with a target surface, vise grips rely on slight deformation to achieve their intended purpose. That is to say the "grip" part of vise grip. What we usually refer to as their bite.

  • @hansmaulwurf2187
    @hansmaulwurf21872 жыл бұрын

    When I was young, I wanted to become a professional Boxer, but my face wasnt compliant enough :D

  • @007LvB
    @007LvB2 жыл бұрын

    I have no idea what is being explained between 7:00 and 8:00 - perhaps a short video example would be beneficial?

  • @BrainSlugs83

    @BrainSlugs83

    2 жыл бұрын

    He's explaining that the more you bend something, the more it resists. Think of like a rubber band. It's easy to flex at first, but the tighter you pull it, the more force you have to use. Not like a weight, which weighs the same amount the entire time you're lifting it. The rods though, are engineered in such a way, that although the force comes from deformation (like a rubber band), within the usable range, it does not require more force. It has a constant force that's required. I'm guessing they achieved this feat with micro structures of varying densities. So like, if you cut up a bunch of different sized rubber bands and stitched them together, you might be able to achieve something similar in my analogy.

  • @pathumthilina3938
    @pathumthilina39382 жыл бұрын

    ❤️

  • @rakshitpaliwal8778
    @rakshitpaliwal87782 жыл бұрын

    I have an Idea in my mind, But I am troubling with its design.

  • @zyxwvutsrqponmlkh
    @zyxwvutsrqponmlkh2 жыл бұрын

    We don't need no education We don't need no thought control KZread Teach us all we need to know

  • @soha150
    @soha1509 ай бұрын

    Aircraft industry went down a bad path 💀