Subject:
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Re: rtlToronto19: Balance of Power and other upcoming events
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Thu, 3 Mar 2005 16:51:00 GMT
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Viewed:
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788 times
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On Tue, 1 Mar 2005 23:28:15 GMT, Iain Hendry
<militaryduckjock@rogers.com> wrote:
> "Nick Kappatos" <nkappatos@gmail.com> wrote:
>
> > No clear photos of the actual setup, but the prof in charge does mention
> > Lego as
> > an inspiration.
>
> http://pergatory.mit.edu/2.007/past_contests/2001_tiltilator/table_design/dynamic-table-2_pic1_with_labels.jpg
>
> This seems kinda... odd. The instant it starts to move in one direction,
> it's going to "snap" over and that's the end....?
>
> Iain
It wont just topple as it is "spring" return to centre...This puts the
whole system in dynamic oscillation (especially with the 8lb ball
swinging...)
groked more of the orifinal MIT site. 2001 contest table details here
http://pergatory.mit.edu/2.007/past%5Fcontests/2001%5Ftiltilator/html/contest_table.htm
"The shaft is hollow inside and a special alloy steel rod with high
yield strength serves as a torsional spring. The rod runs trough the
entire length of the shaft and it is rigidly attached to the beam. The
other end of the rod is held by a fixture which is bolted onto the
base. When the beam is deflected to one side and then released, the
torsional spring will bring the beam back to level."
-Rob A>
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