Subject:
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Re: Newbie needs Help
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 5 Jun 2006 23:03:08 GMT
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Original-From:
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steve <sjbaker1@airmail.NOSPAMnet>
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Viewed:
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2612 times
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Steve Hassenplug wrote:
> On Mon, June 5, 2006 2:48 pm, Tac Tacelosky/Smokefree DC wrote:
>
> > "BTW, don't use tank treads."
> >
> > How come? Gut feeling is that it would provide more traction?
>
>
>
> Yes, you would think so. But, they don't.
>
> Tank Treads look like they have a big "contact-patch" with the ground. In reality,
> each one only applies pressure in two points (at each wheel), and even those are not
> in contact with the ground all the time, because of the tread pattern.
Real tanks and dozers have lots of little sprung wheels resting along
the bottom edge of the track - adding those would give you back that
down-force you miss from the center of the track being unsupported.
Tank tracks are a subtle thing in the real world. One way to look at
them is as a nice smooth road on which the vehicle drives - lifting the
road up behind them and laying new road up-front. That's a good way
to look at it so long as the track itself isn't slipping.
The old fashioned name for these kinds of vehicle is "track laying
vehicles".
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Message is in Reply To:
 | | RE: Newbie needs Help
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| (...) Yes, you would think so. But, they don't. Tank Treads look like they have a big "contact-patch" with the ground. In reality, each one only applies pressure in two points (at each wheel), and even those are not in contact with the ground all (...) (18 years ago, 5-Jun-06, to lugnet.robotics)
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