REFLECTOR: Shimmy dampener fluid mechanics

[Dennis Martin]

Jesus would approve.

On Wed, Feb 25, 2009 at 9:46 PM, Darrell & Nora Kufalk <kufalk at wi.rr.com>wrote:

>  Non-Newtonian fluids explained...
>
> http://www.youtube.com/watch?v=5GWhOLorDtw
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> -----Original Message-----
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Jeff Clough
> *Sent:* Wednesday, February 25, 2009 8:35 PM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* REFLECTOR: Shimmy dampener fluid mechanics
>
>
>
> Are there any dampener fluids/oils which behave differently or have
> different properties depending on the *RATE* of the forces to which they
> are subjected? (Any space age materials available?)   Kinda like corn starch
> and water...have y'all eve played with that stuff ?......push on it slowly
> and it is like a viscous fluid.....push faster and it really stiffens up a
> lot....that would  make taxiing/turning (slow) easier and effectively  stop
> the shimmy (fast)  action.....maybe?    There was a TV show a while back
> where guys had a pool of cornstarch/water...they could run or walk quickly
> across it easily as it was nearly a solid...but go slowly and they would
> sink in the liquid.....
>   Just wishing....
> Jeff C
>
> Al Gietzen wrote:
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> Ron;
>
>
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> You’ll have to tell us how you envision it being installed. It can’t
> support the load on the nose gear, and is not designed for side loads, so
> I’m unable to envision how it could be used.
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>
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> Yes, something of that nature installed between the fork and the leg could
> be very helpful; but I don’t think this is it.
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>
> Al
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> -----Original Message-----
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org<reflector-bounces at tvbf.org>]
> *On Behalf Of *Velocity xl
> *Sent:* Wednesday, February 25, 2009 5:16 PM
> *To:* reflector; reflector at tvbf.org
> *Subject:* REFLECTOR: (no subject)
>
>
>
> http://www.efdyn.com/pdf/xcrd%20page.pdf
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>
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> Here is an idea for a Dampener I dreamed up. There are people that know the
> forces
>
> involved here better than I. May be they could tell if this device would
> work to stop our
>
> Shimmy problem. Simple small and clean if it would work. Dampener is at the
> bottom of the
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> Gear leg.
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>
> Ron
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> ------------------------------
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-- 
All the best,
Dennis
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