Re: a voice in the wilderness


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Posted by Darren (208.143.232.66) on May 08, 2003 at 10:00:18:

In Reply to: Re: a voice in the wilderness posted by Vector Viper on May 08, 2003 at 02:16:34:

: I feel a wheel can be made that is only O/U at high speeds
: as well, perhaps using 'pumped' centrifugal force...untested,
: as yet


I'll let you know when the prototype is done :-)


: I am also wondering if a wheel is even needed at all;
: all 'neat bits' not IN the wheel.


Not sure what you mean by that.


: I'd love to see a wheel accelerate untill it destroys itself-
: (unless it was mine) now that's O/U!


At reasonable speeds CF is "unbalanced"... CF+weight around the bottom of the wheel and CF-weight around the top of the wheel. Once the rpm climbs high enough to push CF higher than the weight of the weight then CF will eventually pin the weights to the rim all the way around, even the top. Self limiting... or should I say self regulating :-)


: Yes-cool...'virtual weights' I call them-not real weights,
: but a center of gravity between 2 weights-that's where the
: wheel 'sees' the weight act...an important technique,since
: it seems to also kill off most if not all of the inertial forces of moving weights too... :*)


Very good :-) Although you have to be much more careful with your calculations.


: Also, a weight falling on an arm attached to a wheel 'unloads'
: the wheel while falling (accelerating down) and feels
: heavier accelerating up

Okay.

:static tests are useless...

Yes, static tests are not a good way to find OU. That's also a very interesting thing for you to say...

We all know how easy it is to draw something static that *looks* like it will work, but then when we start to prototype or test it dynamically, physically, it doesn't actually work... well... the answer actually lies here... draw something that *doesn't* look like it will work when it's sitting still... :-)

Darren


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