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In Reply to: RE: Vector algebra posted by Logan on April 21, 2015 at 22:47:20:
Well, for the skating force to occur it takes both the geometrical deviation (i.e. the groove drag vector not being in-line with the virtual arm axis) and the friction. The latter will be different for "tip of tip on blank disc" compared to "flanks of tip in groove", though - 'cause for the former the normal force equals the actual tracking force (which should be a bit lower than the set tracking force due to vertical skating...), whereas for the latter it'll be 2^0.5 the actual tracking force, so that friction for "tip in groove" should be ca. 41 % higher than friction for "tip on blank" due to the different normal forces.
However, the actual coefficient of friction would seem pretty likely to also differ between blank disc and modulated groove - but the influence of that factor would seem pretty hard to guesstimate (for me, at least), so it would be nice to have something like the Dual Skate-o-meter at hand to get a better idea about that...
Greetings from Munich!
Manfred / lini
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Follow Ups
- RE: Vector algebra - rindolini 09:05:16 04/22/15 (0)