REFLECTOR: wheel shimmy

[Sid Knox]

From: "Al Gietzen" <ALVentures at cox.net>


> So what you are saying is the Sticktion is what we are fighting  right.
> So if we over come this then we would not need toe Hydraulic dampener?
>
> Ron
>
> "Sticktion" is only part of the problem.  I find the sticktion force only
> about 2-3 lbs more that the steady state.  What we want is a freely
> castoring nose wheel that does not shimmy - or as close to that as 
> possible.
>
Here is the graphic of what you are saying... this data was taken some years 
back.  You can see and compare the stiction of the two systems in the 
near-zero Angular Velocity region. (yes, I know now that it should say 
"Belleville").

Sid
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