[Space] Why the payload was bouncing around some much.
cclinco at gmail.com
Mon Feb 8 13:55:09 PST 2010
I started thinging about using a inprovised steady cam concept to help
dampen the vibrations, that with a styrophone sphere or rounded cylinder for
I'll draw some concept sketches for Tuesday.
the dyi steadycam
On Mon, Feb 8, 2010 at 1:37 PM, Christie Dudley <longobord at gmail.com> wrote:
> What if we made the payload more bullet or torpedo shaped? If it's being
> bounced because of drag from the top, it makes sense to reduce that. I was
> wondering why they put pointy ends on the EOSS payloads they pictured. That
> would explain it.
> "The road of excess leads to the palace of wisdom." -- W. Blake.
> The outer bounds is only the beginning.
> On Mon, Feb 8, 2010 at 1:25 PM, Jonathan Moore <moore at eds.org> wrote:
>> Well we should use a much longer tether next time. That would help
>> with the effects you describe but also with other effects too.
>> Also did any one else notice how clearly we were in two different
>> winds during the flight. If you look at the kml file you can see that
>> at lower altitudes we went mostly south but at upper mostly west. For
>> people wanting to steer the balloon it seems that changing altitude
>> might be a easy way to do it.
>> On Mon, Feb 8, 2010 at 1:20 PM, Michael O <m at dgmo.org> wrote:
>> > Some discussion at lunch reminded me to mention my pet theory for why
>> > payload was bouncing around to much.
>> > I'd originally assume it was wind shear layers, but the video shows it
>> > moving around fairly violently for pretty much all the ascent.
>> > So my new theory is that having a 7ft+ balloon rising at a pretty decent
>> > pace leaving a bunch of turbulent air beneath it which the payload is
>> > dragged through.
>> > This makes adding fins or suchlike to the payload a non-starter I think.
>> > It'll just make it even more affected by the turbulence.
>> > So now I'm back to having no idea how to usefully stablize the payload.
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