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Unread 01-12-2013, 22:13
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Ether Ether is offline
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Re: Ideal pushing gear-ratios?

Quote:
Originally Posted by Oblarg View Post
Anyone here have any data on the amount of internal frictional losses FRC drives actually have?
It probably varies considerably. Even identical drivetrains may have significantly different friction because the friction is affected by lubrication, chain/belt tension, alignment (both toe-in and camber) of wheels and sprockets and pulleys, gear tooth tolerances, etc etc.


Quote:
Just wondering how accurate the 80% efficiency figure in the spreadsheet actually is
It's just a ballpark placeholder value, same as in JVN spreadsheet.


Quote:
I've always wondered about this, but never really gotten around to testing it.
See the last sentence on Page2 of the PDF Drivetrain Acceleration paper and supporting docs here.



Last edited by Ether : 01-12-2013 at 22:26.