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01-15-2005, 12:43 PM
| #231 (permalink) |
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| Re: Rim brake heat and spoke tension "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message news:[Only registered and activated users can see links. ]... > Joe Riel <[Only registered and activated users can see links. ]> writes: > >> where >> 1/Feff = 1/Fs + (n/2/pi)/Fr >> ~ 30,000kgF > > That should be > > Feff ~ 30,000kgF > > Nothing else changes. > > Joe Joe, should (n/2/pi) be (n/2pi). Depending on how you ran the calculation this "could" make a difference by a factor of ~10. 0.75kgf/deg C for all 36 spokes seems really high..... don't ya think! Phil H |
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01-15-2005, 12:43 PM
| #232 (permalink) |
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Posts: n/a
| Re: Rim brake heat and spoke tension "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message news:[Only registered and activated users can see links. ]... > Joe Riel <[Only registered and activated users can see links. ]> writes: > >> where >> 1/Feff = 1/Fs + (n/2/pi)/Fr >> ~ 30,000kgF > > That should be > > Feff ~ 30,000kgF > > Nothing else changes. > > Joe Joe, should (n/2/pi) be (n/2pi). Depending on how you ran the calculation this "could" make a difference by a factor of ~10. 0.75kgf/deg C for all 36 spokes seems really high..... don't ya think! Phil H |
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01-16-2005, 07:51 AM
| #236 (permalink) |
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| Re: Rim brake heat and spoke tension "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message news:[Only registered and activated users can see links. ]... > "Philip Holman" <[Only registered and activated users can see links. ]> writes: > >> Joe, should (n/2/pi) be (n/2pi). > > Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi). > Left associative? isn't that like saying you can only go east to west on a two way street :-) Nice analysis by the way. Phil Holman |
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01-16-2005, 07:51 AM
| #237 (permalink) |
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| Re: Rim brake heat and spoke tension "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message news:[Only registered and activated users can see links. ]... > "Philip Holman" <[Only registered and activated users can see links. ]> writes: > >> Joe, should (n/2/pi) be (n/2pi). > > Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi). > Left associative? isn't that like saying you can only go east to west on a two way street :-) Nice analysis by the way. Phil Holman |
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01-16-2005, 07:51 AM
| #238 (permalink) |
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Posts: n/a
| Re: Rim brake heat and spoke tension "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message news:[Only registered and activated users can see links. ]... > "Philip Holman" <[Only registered and activated users can see links. ]> writes: > >> Joe, should (n/2/pi) be (n/2pi). > > Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi). > Left associative? isn't that like saying you can only go east to west on a two way street :-) Nice analysis by the way. Phil Holman |
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01-16-2005, 08:45 AM
| #239 (permalink) |
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Posts: n/a
| Re: Rim brake heat and spoke tension "Philip Holman" <[Only registered and activated users can see links. ]> writes: > "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message > news:[Only registered and activated users can see links. ]... >> "Philip Holman" <[Only registered and activated users can see links. ]> writes: >> >>> Joe, should (n/2/pi) be (n/2pi). >> >> Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi). >> > > Left associative? isn't that like saying you can only go east to > west on a two way street :-) Yeah, it's a little weird, but a standard computer-science term. While many math operators (+, *, etc) are associative, a parser invariably has to make them left or right associative. For example, interpret a + b + c as (a+b)+c. Note that if the word size is fixed then addition is not associative, that is, (a + b) + c does not necessarily equal a + (b + c). > Nice analysis by the way. Thanks, I'm improving it. I hope to include the effect of rim bending and make it available in a day or so. Joe |
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01-16-2005, 08:45 AM
| #240 (permalink) |
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Posts: n/a
| Re: Rim brake heat and spoke tension "Philip Holman" <[Only registered and activated users can see links. ]> writes: > "Joe Riel" <[Only registered and activated users can see links. ]> wrote in message > news:[Only registered and activated users can see links. ]... >> "Philip Holman" <[Only registered and activated users can see links. ]> writes: >> >>> Joe, should (n/2/pi) be (n/2pi). >> >> Division is left-associative. n/2/pi = (n/2)/pi = n/(2*pi). >> > > Left associative? isn't that like saying you can only go east to > west on a two way street :-) Yeah, it's a little weird, but a standard computer-science term. While many math operators (+, *, etc) are associative, a parser invariably has to make them left or right associative. For example, interpret a + b + c as (a+b)+c. Note that if the word size is fixed then addition is not associative, that is, (a + b) + c does not necessarily equal a + (b + c). > Nice analysis by the way. Thanks, I'm improving it. I hope to include the effect of rim bending and make it available in a day or so. Joe |
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