00:01
Determine the max and min values of the primary and secondary forces.
00:07
So let's first begin by calculating omega, which is 2 pi times our number of revolutions over 60.
00:14
We plug in 2 pi times 1800 divided by 60 to get 60 pi radians per second.
00:24
Now our little value, n, is equal to l over r, which is our 275 over 62 .5, which gives us 4 .4.
00:37
Now we can find our total primary force along the x -axis.
00:42
P, our total primary force, is 2 times m, where that's our reciprocating mass, times r omega squared cosine squared alpha cosine squared theta, or cosine theta.
00:58
Now we also have a centripetal force due to our rotating mass.
01:03
That's m rotating, r omega squared cosine theta.
01:10
Now due to that balancing along the x -axis, we also have negative m balance, r balance, omega squared cosine theta.
01:21
So now we can find our total force along the x -axis...