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Old 09-06-06, 09:36 AM   #1
pixel
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Racer statistics?

This is an odd request, but I thought it wouldn't hurt to start here.

I'm looking for statistics on bikes/riders while racing at a velodrome. Times are nice, but I'm more interested in acceleration, energy exertion, stress, etc.; basically info that is more difficult to gather unless someone had a setup for it. Its for a digital architecture course I'm taking, and the first activity is to model on the computer an object through time in terms of its properties (instead of pure physical characteristics). Any help would be appreciated, otherwise due to time constraints I'd have to end up taking guesses at numbers, and I personally would prefer avoiding that. Thanks!
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Old 09-06-06, 09:52 AM   #2
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Possibly your best bet would be to find someone who uses SRM cranks whilst they train/race - these use strain gauges in the crank to measure power output (ie watts), and this can then combined with other data eg speed, time, cadence etc to generate a profile over the course of a ride. The SRM site is at http://www.srm.de and the 'Products' | 'Application Examples' section has some egs. of what data profiles can be produced.

The SRM stuff is expensive to buy - a few thousands dollars - so tends to be used by national squads / elite level riders only. To get any more data than this I think you're looking at professional-level wind tunnel testing etc as carried out by Pro teams.

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Last edited by mickster; 09-06-06 at 02:13 PM.
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Old 09-06-06, 03:44 PM   #3
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The book Bicycling Science has quite a bit of information on power generated by racing cyclists. You might want to check that out.
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Old 09-07-06, 08:35 AM   #4
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Quote:
Originally Posted by mickster
Possibly your best bet would be to find someone who uses SRM cranks whilst they train/race - these use strain gauges in the crank to measure power output (ie watts), and this can then combined with other data eg speed, time, cadence etc to generate a profile over the course of a ride... To get any more data than this I think you're looking at professional-level wind tunnel testing etc as carried out by Pro teams.
This is the ideal info that I'm looking for, but I don't think its going to happen. Thanks for the link though.

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The book Bicycling Science has quite a bit of information on power generated by racing cyclists. You might want to check that out.
Oddly enough the school library had a copy. Seems like it'll get the job done. No one is going to be fact checking my numbers anyways, but accuracy will make the 3D form more genuine. Thanks.
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Old 10-16-06, 12:13 PM   #5
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Here's a link to the project website (which is a work in progress, so don't judge my web skills too hard). Wanted to thank people for the feedback early on in the game. I generalized a lot of the specifics of racing as the target audience (my class) isn't people that race.
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