Subject:
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Re: Mechanical question
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 27 Jul 1999 20:47:01 GMT
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Reply-To:
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jon@midnightbeach.com=StopSpam=
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Viewed:
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921 times
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Laurentino Martins wrote:
> Also important in all this is the distance the tracks are apart. The further apart the less friction they have, since the radius is larger.
> Same happens with wheels.
Why is this? The further apart they are, the greater r*cos(theta) is
going to be for any given theta. Seems like that would make for more
turning resistance, not less.
--
http://www.midnightbeach.com - Me, my work, my writing, and
http://www.midnightbeach.com/hs - my homeschool resource pages
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Message has 3 Replies:
 | | Re: Mechanical question
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| (...) Because the wheel base length shrinks in relation to the turning radius. It is this distance that causes the friction. The further this point is from the imaginary circle that the treads describe, the more perpendicular friction there is. As (...) (25 years ago, 27-Jul-99, to lugnet.robotics)
| | | Re: Mechanical question
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| It makes for more. Don't ask me why, it just does. It kind of reminds me of a great old banjo player i know. When i asked him to break down the way he used his picking hand he said, impatiently, "WHAT'S THERE TO SHOW?! EITHER U JUST PICK UP THE DAMN (...) (25 years ago, 28-Jul-99, to lugnet.robotics)
| | | Re: Mechanical question
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| Jon Shemitz skrev i meddelandet <379E1AC5.53445703@m...ch.com>... (...) further apart the less friction they have, since the radius is larger. (...) (ASCII Art warning - fixed font on) Just compare these two designs: #-# ! ! X ! ! #-# and (...) (25 years ago, 31-Jul-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Mechanical question
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| (...) Add on: Also important in all this is the distance the tracks are apart. The further apart the less friction they have, since the radius is larger. Same happens with wheels. Laurentino Martins [ mailto:lau@mail.telepac.pt ] [ (URL) ] -- Did (...) (25 years ago, 26-Jul-99, to lugnet.robotics)
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