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Bridgestone Air-less Tires

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by bwilson4web, Oct 9, 2014.

  1. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Original title and source: Bridgestone Sucks the Air Out of its Tires

    [​IMG]

    In effect, the 'radial springs' of the Bridgestone tire are engineered for specific spring constant and hysteresis. In contrast, air inflated tires have a balloon structure that depends upon the spring and hysteresis of the sidewall and tread belt. Inflated tires have fewer engineering options to optimize stiffness needed for turns, a lateral impulse, because the tires also have to deal with bumps and object, a radial impulse load.

    I'm looking forward to the Bridgestone results.

    Bob Wilson
     
    #1 bwilson4web, Oct 9, 2014
  2. telmo744

    telmo744 HSD fanatic

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    #2 telmo744, Oct 10, 2014
  3. mrbigh

    mrbigh Prius Absolutum Dominium

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    How we will be doing to keep them clean and out off road debris?
     
    #3 mrbigh, Oct 10, 2014
  4. drash

    drash Senior Member

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    Gives a new meaning to "mud in your tire".
     
    #4 drash, Oct 10, 2014
  5. ggood

    ggood Senior Member

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    and for those of us who are NOTengineers: ;)
    Definition of HYSTERESIS (Websters): a retardation of an effect when the forces acting upon a body are changed (as if from viscosity or internal friction); especially : a lagging in the values of resulting magnetization in a magnetic material (as iron) due to a changing magnetizing force.
    Wikipedia: Hysteresis is the dependence of the output of a system not only on its current input, but also on its history of past inputs. The dependence arises because the history affects the value of an internal state.
     
    #5 ggood, Oct 10, 2014
  6. Trollbait

    Trollbait It's a D&D thing

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    I imagine when these airless tires finally make it to the mass market they will have a simple rubber covering for that. This could also solve a problem with the Tweel was initially reported. These are noisier than current tires. Some of the noise could be in the spokes flexing, but their required shape may also cause air turbulence and thus noise.
     
    #6 Trollbait, Oct 10, 2014
  7. wjtracy

    wjtracy Senior Member

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    ....oh the poor spiders living in there. Well at least it'll put and end to the N2 in tires threads.
     
    #7 wjtracy, Oct 10, 2014
    bwilson4web and austingreen like this.
  8. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Remember, this is a developing technology close to this stage of aviation technology:
    [​IMG]

    Testing is what will lead to product.

    Bob Wilson
     
    #8 bwilson4web, Oct 10, 2014
    Mr. Bubbles likes this.
  9. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    Those guys are bicycle mechanics. And hacks at that!

    That thing will never get off the ground.
     
    #8 TonyPSchaefer, Oct 10, 2014
  10. Ashlem

    Ashlem Senior Member

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    Hmm, looks interesting. They're probably going to cost a lot more than the regular tires though, since these probably won't need to get replaced as often. Still, at least they're trying new things.
     
    #9 Ashlem, Oct 10, 2014
  11. MarcSmith

    MarcSmith Active Member

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    #10 MarcSmith, Oct 10, 2014
  12. Mendel Leisk

    Mendel Leisk Senior Member

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    I'm still in awe of tubeless tires, lol.
     
    #11 Mendel Leisk, Oct 10, 2014
  13. El Dobro

    El Dobro A Member

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    The Air lobby will never let it happen.
     
    #12 El Dobro, Oct 12, 2014
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    PhilWray Member

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    [​IMG]
     
    #13 PhilWray, Oct 12, 2014
  15. MattNiem

    MattNiem Junior Member

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    Do they mention anything about rolling resistance?
     
    #14 MattNiem, Oct 13, 2014
  16. KennyGS

    KennyGS Senior Member

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    I'd be very interested in test results while under more intense performance, handling reviews, etc. For instance, how do they react during an evasive maneuver, or even just hitting a bump while going around a curve at speed.

    I'd also like to know temperature-range and aging effects. All of these are existing considerations for standard tires.

    These have been under development for years, which may be an indication of either unresolvable design issues or economic hurdles.
     
    #15 KennyGS, Oct 13, 2014
  17. SageBrush

    SageBrush Senior Member

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    Naive owner: I broke a spoke. Can I just replace it ?
    PriusChat: NO NO NO. Disassemble the wheel and balance all the spokes, then reassemble as a fractal.
     
    #16 SageBrush, Oct 13, 2014
    ftl and drash like this.
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