wiggle drive propulsion application

Discussion in 'Propulsion' started by SudorracMechEng, May 7, 2012.

  1. SudorracMechEng
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    SudorracMechEng Junior Member

    Hey everyone, glad to see this thread is still continuing!
    KJELL and Swashdrive - are you able to email, or msg me?
     
  2. kjell
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    kjell Senior Member

    I am now working on a new Wiggle-Drive design.
    The new VWD can alter the flapping-fanning angle and lock the tail in mid position.
     

    Attached Files:

  3. SudorracMechEng
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    SudorracMechEng Junior Member

    Hi Kjell, nice work so far!
    How is the locking mechanism working here?
    Have you got any drawings on this?
     
  4. kjell
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    kjell Senior Member

    Attached Files:

  5. SudorracMechEng
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    SudorracMechEng Junior Member

    That video looks amazing! I sent you an email recently.
    I want to make one, and start testing.
     
  6. kjell
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    kjell Senior Member

    You are wellcome. Let me know how it is going.
     
  7. swashdrive
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    swashdrive Junior Member

    Crikeyjingoes / OMG
    If i didn't know better i would say old man Kjell has knocked off my mechanism, this is a whole lot more advanced than his previous prototypes have been:!:
    I'm glad to have been of assistance in his advancement....not :(
    How do you deal with this and stay positive :?:
     
  8. kjell
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    kjell Senior Member

    To make good oscillating tail propulsion, it can be made in many different ways. You can use “Crank drive, Swash drive, Scotch yoke drive or Wiggle drive”. Some are better than the other. The only drive that direct convert the rotating motion in angular motion is the Wiggle Drive. To have my latest design is not necessary to produce excellent propulsion. The variable flap angle is only needed for specific use. In flapping wing flight it is interesting to use this drive because it locks the wings in gliding position.
     
  9. swashdrive
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    swashdrive Junior Member

    What you have demonstrated here with your latest prototype is a "SWASHPLATE" type mechanism
    Your wiggledrive was originally using a scotch yoke type mechanism, now your using a swashplate and conveniently renamed it a wiggledrive.
    There is no confusion with that !
    Its almost like a grab for glory ?
     
  10. kjell
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    kjell Senior Member

    A swashplate is a device used in mechanical engineering to translate the motion of a rotating shaft into reciprocating motion,
    The Scotch yoke is a mechanism for converting the rotating motion into linear motion or vice-versa.
    The Wiggle-Drive is a mechanism for converting the rotating motion into an angular motion.
     
  11. swashdrive
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    swashdrive Junior Member

    Kjell
    I think ur understanding of a swashplate is a little off key
    a swashplate in its most complex form is that of a swashplate in a helicopter, there is no recipe to rotation cranking conversion here ! It is controlling cyclic and pitch of the blades on a rotating mast head !
    A swashplate in its most natural form is a coin falling into this decay motion as gravity acts on it.
    What you are dealing with is a swashplate in a cranking form and as like i have done, using the angular motion as well as the pitching motion to produce thrust off a fin or wing, its the same thing....you have simply renamed it as a wiggle drive. I have found there to be 8 different ways to configure a swashplate and each one is a swashplate :)
    This dynamic or active pitch you have shown here, i have done all this already and have achieved deflection / pitch angles of 0 deg and up to 120 deg incl in a dynamic state. The major advantage of this is the ability to servo pitch and stroke on the fly, i.e. swim like a fish !
    A lot of stroke to start off then servo back or lessen stroke & pitch into direction of flow.
    This is exactly how i 've managed to achieve such a high efficiency !
     
  12. Frosty

    Frosty Previous Member

    A swash plate of this kind can be seen on an automotive air conditioning compressor. The round type, perhaps some exploded view of this might be available on the internet.

    Fridgidare I beleive!!!...

    It will turn rotating to reciprocating but very poor the other way round.
     
  13. kjell
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    kjell Senior Member

    swashdrive.
    Why don’t show how you are using the swash plate in your speed boat.
     
  14. swashdrive
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    swashdrive Junior Member

    Kjell

    I would really like to do that indeed,show you, but because i fear it will be adapted into this wiggle drive again.
    It seems fairly clear to me you have already taken my pivoting hub for this latest wiggledrive.
    Credit given you have quickly worked out by adding a linkage to the hub onto a thrust bearing would add a dynamic throw, or it maybe be you discovered this by other means, i don't know, but its very close to what i have done and so i feel rather defensive, maybe you can convince me otherwise !
    also i won't be putting up any pics as its only going to be criticised by the likes of that super smart blond-bloke ... come on it doesn't even come close to a fridge pump, they have a rotating piston barrel....doooh
     

  15. Frosty

    Frosty Previous Member


    Thats what a swash plate is --if thats not like your thing that you wont show then do'nt call it a swash, trying to help people imagine how it works.

    Rotating piston barrel!!! not all. But if you say so.

    Engineers walked this planet 'even' before you were born.

    Swash plates are not common in engineering but have been around for years youve invented nothing thats not been seen before.

    Perhaps your application is new but thats just another application not a patent claim.

    Kids today !!!!!!
     
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