Thread: Bridge Mass Properties
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Unread 23-06-2002, 23:02
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#0047 (ChiefDelphi)
  
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It's a Sensitive Kinda Bridge
Posted by Dodd Stacy at 1/16/2001 4:54 PM EST


Engineer on team #95, Lebanon Robotics Team, from Lebanon High School and CRREL/CREARE.


In Reply to: Re: Bridge Numbers PS
Posted by Eric Reed on 1/16/2001 2:22 PM EST:



: Thanks, Dodd...this is good news, we were afraid that the bridge would not be sensitive enough.

: Eric - 481

Don't worry, Eric. It will be very sensitive unless/until the angle iron pieces start to friction weld themselves together. For manipulating the bridge from the floor, it's basically a teeter-totter. The only significant forces to deal with will be from the weight of bots or goals on the bridge.

And if you want to balance your bot on the bridge, get ready to dance!

I should be careful, though. The bridge pivot is so primitive and full of hysteresis, and the "over center" aspect of the elevated CG is slight enough (which is why it's sensitive) that other teams may be producing different findings. Can others add their experience, please?

Dodd


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