Quote:
Originally Posted by Christ
I decided I'm going to build a DIY centrifuge, and I was going through the paces figuring out where to source some materials, etc...
So I thought about using a brake drum from a large truck, with a diameter of ~ 15" (380cm)
I used a G-Force calculator because I'm kinda special when it comes to the more advanced maths and just wanted a quick answer... plugging in the numbers I was asked for [radius and RPM] yielded an answer of almost 24,600g.
The numbers I gave are r=190cm, RPM = 3400.
This is basically representative of a 15'' drum spinning at 3400RPM, but it doesn't seem right that the (g) experienced at the outer edges of the drum will be around 24,600g...
I'm not even positive that a cast iron brake drum would hold itself together at that force.
Edit:
Nevermind, I really shouldn't math when it's so late. Stupid decimals.
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Also, 3400 rpm seems rather high for the axle speed of a large truck. Assuming a 30" tall tire (probably too short), I get 300+mph at 3400rpm.
You were probably thinking engine speeds, rather than axle speeds.