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Hyperloop

Discussion in 'Cars and Transportation' started by gg_got_a_tesla, Jul 12, 2012.

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  1. Norbert

    Norbert TSLA will win

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    #21 Norbert, Jul 16, 2012
    Last edited: Jul 16, 2012
    Dunno much about pneumatics. I was imagining 2-3 feet for the pipes. That would make for a large volume altogether.

    EDIT: Probably would have to be much larger than that, for the air movement in the pipes not to cause too much friction with the walls of the pipe.
     
  2. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    Sounds interesting. Maybe it could be like water tubes in amusement parks with straight, twisty and ultra twisty depending on your mood.
     
  3. Steph

    Steph Member

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  4. bonnie

    bonnie Oil is for sissies.

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    #24 bonnie, Jul 17, 2012
    Last edited by a moderator: Mar 13, 2016
    More like this.

     
  5. bonnie

    bonnie Oil is for sissies.

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    Thank you, TEG!
     
  6. Steph

    Steph Member

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    Weeeeeeeuuuww!!!
     
  7. TEG

    TEG TMC Moderator

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  8. YoungStranger

    YoungStranger Member

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    #29 YoungStranger, Jul 17, 2012
    Last edited: Jul 17, 2012
    I have also been into this in the UK - unfortunately the politicians wern't and rejected for an overpriced and unnecessary conventional option
    . MAGLEV - Faster, Cheaper, Better

    ww w,500kmh.com index

    The International Maglevboard

    I'm not sure what hyperloops are though. Can I be off topic in an off topic?:confused:
     
  9. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    In his fireside chat Mr Musk mentioned the hyperloop. When the interviewer suggested something like the Jetsons, he agreed it was something like that. So people are presuming it would be an enclosed tube using a combination of pressure and low friction to allow for rapid transportation.
     
  10. WhiteKnight

    WhiteKnight _____ P85 #549 _____ Sig Red / Sig White

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    Elon Musk [email protected]
    Will publish something on the Hyperloop in about four weeks. Will forgo patents on the idea and just open source it. Not a vac tunnel btw.
     
  11. Kipernicus

    Kipernicus Model S Res#P1440

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    Mentioned hyperloop in this LA Times interview

     
  12. TEG

    TEG TMC Moderator

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    #33 TEG, Sep 7, 2012
    Last edited: Sep 7, 2012
  13. mt2

    mt2 Member

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    #34 mt2, Sep 8, 2012
    Last edited by a moderator: Mar 13, 2016
     
  14. RDoc

    RDoc S85D

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    This whole vacuum tube transport system talk is so 19th century! It's been done already, complete with paying customers in NYC as part of the subway system. And as with so much else, killed by politics

    http://en.wikipedia.org/wiki/Beach_Pneumatic_Transit
     
  15. Discoducky

    Discoducky Active Member

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    Ok, Elon says he'll post something in about "a month or so" from his Jimmy Fallon interview. If he eventually does here's my guess.

    Summary: Surface built magnetically suspended, accelerated and guided pods. I guess it's the name that really got me thinking that if you were to put a system of magnet loops a few feet apart right at the surface where each loop was just a few feet larger than individual pod diameter you could accelerate these pods to a crazy speed. A loop would allow the pods to travel in different directions by slowly modifying their vectors with each loop. Under the cover of Solar Panels they would be resistant to weather intrusion. Linked together with battery backups they would be resistant to outages and thus crash-less. If enough were travelling together you'd get the benefit of less air drag and faster speeds with less power used. With enough solar panels and batteries you could conceivably self power the system. Make the pods small enough to keep the total weight accelerated as small as possible.

    Could see a pod being able to accelerate to well beyond 300mph if under 2000lbs and had a very small CoD. Make them out of Carbon Fibre, Aluminum and magnets. 1000lbs/per pod with could be doable to allow for 1000lbs cargo. That's my guess, but haven't done the actual calculations as to how many magnets per loop, how many loops per 10 feet, what the actual CoD would need to be for a pod that weighed 2000lbs to hit 300+mph.

    It would be stunning to see a form of transportation that had no moving parts and was impervious to crashes. For instance in the event of a earthquake and a simultaneous power outage the batteries could be used to reverse the push to accelerate into the pull to decelerate and quickly stop. If the occupants were in a 5 point harness you could safely stop within about 5 seconds. Every mile or so could be configured with an accelerometer (to act as a seismograph) to quickly stop pods. Surface mounted pods to allow for easy egress in the event of a catastrophic failure. This would be more difficult if it was a true tube and/or depressurized/vacuum and underground as it would greatly add to cost and safety concerns.
     
  16. Norbert

    Norbert TSLA will win

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    This interview covers a few questions about the hyperloop, in Part 2:
    Elon mentioned these properties:

    dpeilow reported that at Oxford University, Elon gave first descriptions of the technology used:


    -----
    If the railgun were used like a catapult to make the hyperloop-vehicle fly from SF to LA, then it would really be difficult to see how it couldn't crash.

    So, I'm wondering whether it would fly over ground with an air cushion (and no or only very small wings), and the two electric wires would go all the way from SF to LA (as for electric buses), yet not carry the weight of the vehicle (only perhaps be a guidance for the steering mechanism).
     
  17. VolkerP

    VolkerP EU Model S P-37

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    In a rail gun, the current that drives the projectile, at the same time tries to separate the two rails. Very violently. We're talking of millions Ampere here. No lightweight construction can handle this current, the forces, and the dynamic load of the accelerating payload at once.
    navy_rail_gun_small.jpg
     
  18. Norbert

    Norbert TSLA will win

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    #40 Norbert, Nov 15, 2012
    Last edited: Nov 15, 2012
    Perhaps then it gets re-accelerated in segments many miles apart, yet it still moves over ground.

    EDIT: OTOH, if the mechanism works continuously, then it doesn't need to provide more power than an airplane engine (especially, of course, in case it flies in a vacuum tube). So, if it is an effective principle, then the consumed power doesn't have to be that large either.
     

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