tag:blogger.com,1999:blog-4786784182488135171.post8772630383016089229..comments2023-07-21T17:26:24.127+04:00Comments on Ron George: Dynamic Ride Comfort & Measuring Vibration In BicyclesRonhttp://www.blogger.com/profile/16268869622833968439noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-4786784182488135171.post-70371878745353831692009-09-04T17:21:38.326+04:002009-09-04T17:21:38.326+04:00I wonder what a bike would ride like that has been...I wonder what a bike would ride like that has been built with 80% flax, 20% high modulus 3k carbon comboBuilding Materials Supplieshttp://www.cambridge-homeimprovement.co.uknoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-71791527416119809802009-08-27T23:56:08.665+04:002009-08-27T23:56:08.665+04:00Good Vibrations:I hate to state the obvious, but a...Good Vibrations:<br><br>I hate to state the obvious, but all materials have natural damping in them or else they would continue to vibrate for ever. Superior damping characteristics was one of the selling points of magnesium frames when they first came out. <br><br>http://www.mgbiker.20m.com/mg.htm<br><br>Also check out Elastic hysteresis as I believe it explains the Bontrager phenomena. <br><br>http://en.wikipedia.org/wiki/Hysteresis<br><br>Also see damping:<br><br>http://en.wikipedia.org/wiki/Dampingalloycowboyhttps://www.blogger.com/profile/14429465662167808264noreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-57126879979365683202009-08-26T18:42:08.066+04:002009-08-26T18:42:08.066+04:00Thanks a lot. Now I can show off I learnt some new...Thanks a lot. Now I can show off I learnt some new words. :0Sprocket_Rocketnoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-58540972674074414692009-08-26T07:46:25.388+04:002009-08-26T07:46:25.388+04:00Hey Ron, sorry but I'm not one of the humans g...Hey Ron, sorry but I'm not one of the humans gifted with brain power. But what's this fast fourier transform?Sprocket_Rocketnoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-61489765614012214952009-08-26T07:00:29.319+04:002009-08-26T07:00:29.319+04:00I was wondering would there be any way for the des...I was wondering would there be any way for the designers to do a modal analysis using computers? The only challenge I see here is how to tell the computer that the bike has a special composite material in it?Richardnoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-90466843646467137812009-08-26T02:20:45.551+04:002009-08-26T02:20:45.551+04:00Ron their are a couple wild cards in the mix. That...Ron their are a couple wild cards in the mix. That would be rider size, power, and weight. A bike that feels stiff to 140 lb rider may feel like a wet noodle to a rider that weighs 200 lbs. So the bike needs to be tuned to the individual rider. I think the future of frame building is custom composite frames for everyone. Here is how the process will work. "Just add money!"<br><br>A female frame mold will be rapid protyped based on the riders custom specifications. A ceramic male mold is then created from the female mold using "Advanced Cermacis Manufactering's" Aquacore Premium Ceramic. Then the carbon composite frame will be layed up over the ceramic core and cured in an autoclave. Once the frame is cured the water soluable ceramic core is dissolved away leaving the pure carbon frame now ready for finishing. <br><br>Rumor has it that Race Face is building its carbon cranks this way.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-30748848385387887552009-08-25T21:37:31.632+04:002009-08-25T21:37:31.632+04:00In every bicycle design, there are tradeoffs. Too ...In every bicycle design, there are tradeoffs. Too much of one good attribute leads to the lessening of others. I think its upto the consumer to make the compromise.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-45007909925589325352009-08-25T21:21:39.475+04:002009-08-25T21:21:39.475+04:00it's posts like this that make me feel smarter...it's posts like this that make me feel smarter, eventhough i'm really not (well, maybe +/- 5% but that's negligible in the iso's eyes). keep it comin'!acquiesce808https://www.blogger.com/profile/18358706190760979985noreply@blogger.comtag:blogger.com,1999:blog-4786784182488135171.post-30596799705589489072009-08-25T15:35:34.110+04:002009-08-25T15:35:34.110+04:00Ron,Thanks for your post. I think this is one of t...Ron,<br><br>Thanks for your post. I think this is one of the more important issues with bike design & marketing.<br><br>Most reviewers are told what ride to expect prior to testing & have preconceived ideas of the ride characterists of different frame materials. So developing an unbiased repeatable testing protocol would be a huge leap forward.<br><br>I'm not sure how manufacturers will react, as I guess not all 'special' design features will be proved to be functional.Jamesnoreply@blogger.com