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CENTRIFUGAL FORCE - AGAIN

CENTRIFUGAL FORCE - AGAIN

CENTRIFUGAL FORCE - AGAIN

(OP)
Hello to all...
I have chased down a few threads to see comments on calculating centrifugal force and end up with so many  different answers by experts...

Can anyone verify my calculation...gravity is not part of this  at the moment:

r (radius) = 0.1524 m (6 inches)
m (mass/weight) = 0.227272727 kg (0.5 lbs)
rpm = 250

[w = 2*3.14*250/60 = 26.18 rad/s]

CF = m*w*w*r = 23.7395 Newtons or 5.3368 lbs

 

RE: CENTRIFUGAL FORCE - AGAIN

... what sort of mechanism though?  Is "r" a crank radius?

- Steve

RE: CENTRIFUGAL FORCE - AGAIN

(OP)
Hello Greg...
Thanks for your response.
As a consequence, this also helped me build a calculator in excel, where i can change any of the 3 variables, giving me results in metric and english.
Greatly appreciated,
Christoph

RE: CENTRIFUGAL FORCE - AGAIN

(OP)
Hi Steve...
Yes it's a crank radius.
I'm building a double piston of my own design.
Should be interesting....
What is your automotive specialty?
Thanks...Christoph

RE: CENTRIFUGAL FORCE - AGAIN

As Steve hints, I assumed that the r term was the effective raius of the mass... not its overall radius.

Cheers

Greg Locock

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RE: CENTRIFUGAL FORCE - AGAIN

Well...  That is the radial force required to rotate a point mass at that radius.  But it's unlikely that your system is that simple.

(My specialty?  Check out "My Info".  It's fairly up-to-date)

- Steve

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