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What happens if you hang a weight from the bottom of a wheel?
While I was enjoying the current incarnation of the stand-or-hang
thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. Cheers, Carl Fogel |
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What happens if you hang a weight from the bottom of a wheel?
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What happens if you hang a weight from the bottom of a wheel?
Tim McNamara wrote:
In article , wrote: While I was enjoying the current incarnation of the stand-or-hang thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. Rather than starting yet another useless thread, find out for yourself and get back to us. This ought to take about 5 minutes. Hell, it'll take him twice as long as that to tell you (politely of course) to stick it! LOL |
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What happens if you hang a weight from the bottom of a wheel?
On Mon, 11 Sep 2006 08:52:04 -0500, Tim McNamara
wrote: In article , wrote: While I was enjoying the current incarnation of the stand-or-hang thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. Rather than starting yet another useless thread, find out for yourself and get back to us. This ought to take about 5 minutes. Dear Tim, I think that more readers would be interested in the theory, which is apparently beyond both of us. Cheers, Carl Fogel |
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What happens if you hang a weight from the bottom of a wheel?
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What happens if you hang a weight from the bottom of a wheel?
writes:
wrote: While I was enjoying the current incarnation of the stand-or-hang thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. Tension will rise in the vertical spokes and drop in the horizontal. Carl should have specified more clearly the condition. The wheel is supported at the hub. The downward force is applied to the bottom of the rim. The tension changes in the spokes will be the negative of what they were with standard loading (for small displacements). Most of the tension change is in the bottom spokes, which now see an increase. -- Joe Riel |
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What happens if you hang a weight from the bottom of a wheel?
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#9
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What happens if you hang a weight from the bottom of a wheel?
Carl Fogel wrote:
While I was enjoying the current incarnation of the stand-or-hang thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. View the rim as an elastically supported beam, as has been suggested here previously. The effect, on a hub anchored wheel, is the same but opposite of its normal loading. The bottom spokes get a bit longer and the others react the inverse of before, because the diameter of the rim decreases slightly (making other spokes have slightly less tension than initially). Of course we can expect arguments why the load is hanging from the top spokes from some quarters. Jobst Brandt |
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What happens if you hang a weight from the bottom of a wheel?
wrote in message
... While I was enjoying the current incarnation of the stand-or-hang thread, I found myself wondering what the spokes and the rim will do if you stick a wheel up in the air and hang a weight from the rim section that would normally be the contact patch. Cheers, Carl Fogel Nothing as long as you hold onto the wheel. Let go and both the wheel and the weight fall to the ground. Care to rephrase the question? |
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