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- Newsgroups: sci.math
- Path: sparky!uunet!mcsun!sunic!corax.udac.uu.se!frej.teknikum.uu.se!flax
- From: flax@frej.teknikum.uu.se (Jonas Flygare)
- Subject: Real World Problem (handrail for stairs..)
- Message-ID: <1992Sep4.093538.2423@corax.udac.uu.se>
- Keywords: stumped
- Sender: news@corax.udac.uu.se
- Reply-To: flax@mizar.docs.uu.se
- Organization: Dept. of Control and Systems, Teknikum, Uppsala
- Date: Fri, 4 Sep 1992 09:35:38 GMT
- Lines: 34
-
- Here's a Real World (tm) problem for all you math types out in netland.
-
- My girlfriends father is making spiraling stairs for a living, and at a
- dinner a while ago aske d me about a problem he have.
- When making the handrail, it is ordered from another company, and is made
- in circle segments, from a circle with a radius larger than the radius
- of the stair itself. (due to the height difference)
- So, when ordering he need to specify the radius.
- That is dependent on the radius of the staircase, the inclination (or
- the height between each step)
-
- I believe that the solution is somewhat dependent on the length of each
- segment, as they have to 'twisted' slightly in relation to each other
- to fit.
-
- When I asked this at a local conference system I got several
- answers that seemed to be well thought out. Unfortunately they
- produce different results.. :-)
-
- I'd really like to get a 'definite' answer to this so here goes:
-
- Given the radius and inclination of a spiraling staircase (and
- eventually the length of each segment, or angle that the segment covers),
- when approximating the handrail from circle segments, what radius should
- that circle be?
-
- If any of you think this is trivial, I don't mind you pointing that out,
- as long as you provide me with a solution. :-)
-
-
- --------------------------------------------------------
- Jonas Flygare, + Wherever you go, there you are
- V{ktargatan 32 F:621 +
- 754 22 Uppsala, Sweden +
-