Thank?s Hank very good explanation. Now nobody has to ask
anymore and I can see I have done the right thing.
Also I don?t have to explain anymore with my crummy English,
but people doesn?t beleive me anyway, guess I have to
live with that.
73 Jim SM2EKM
------------------------------------------------------------------
kr7x@comcast.net wrote:
> List members:
>
> The phenomina you are witnessing is called vortex shedding or oscillation. It
> is a function of natural frequency of the element, in this case a cylindar
> with
> l/d >25, and the weight per unit length plus the wind velocity.
>
> For those who wish to see some illustrations go to:
>
> http://www.itsc.com/movvkv.htm
> http://www.mecaconsulting.com/vortex_shedding.htm
,
|