POV-Ray : Newsgroups : povray.binaries.utilities : Search for ropes Server Time
31 Oct 2024 21:23:08 EDT (-0400)
  Search for ropes (Message 1 to 2 of 2)  
From: Loial Raven
Subject: Search for ropes
Date: 4 Jun 2000 23:17:30
Message: <393B1B68.ABEAAA6B@telus.net>
Does anyone have a real rope include file, something that does
end-points and length... the math is a little complex for me to solve.

um... if it helps, here's the math:
(quoted from Mark's standard handbook for mechanical engineers)
Given the Length 2L of a chain supported at two points A and B Not in
the same level, find a (b,c are suposed to be known)
Let (sqrt(L^2-b^2)/c = s/x; use s/x = sinh(z)/z to find z. then a = c/z.

well, here's a pic too...

have fun all, and i hope someone can help with this...
      the Loial Raven


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From: J  Grimbert
Subject: Re: Search for ropes
Date: 14 Jun 2000 03:00:37
Message: <39472D9E.1FB5696A@atos-group.com>
Loial Raven wrote:
> 
> Does anyone have a real rope include file, something that does
> end-points and length... the math is a little complex for me to solve.
> 
> um... if it helps, here's the math:
> (quoted from Mark's standard handbook for mechanical engineers)
> Given the Length 2L of a chain supported at two points A and B Not in
> the same level, find a (b,c are suposed to be known)
> Let (sqrt(L^2-b^2)/c = s/x; use s/x = sinh(z)/z to find z. then a = c/z.
> 
> well, here's a pic too...
> 
> have fun all, and i hope someone can help with this...
>       the Loial Raven
> 
>   --------------------------------------------------------------------------------
>  [Image]

Well, You should have search for the chain include. 
At least it does the end-points and a sort of looselyness.
(afterall, a rope could be modelled as a chain with very small links).

Counting the number of links, it gives you back the length,
but I do not remember if it provide the coordinates of the low point...


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