| The cyclic
force generator utilizes a pair of: unbalanced fly-wheels, rotating In
opposite directions at a speed of 480 rpm, or 8 cycles per second. The
vertical component of the acceleration of the unbalanced mass produces
the cyclic force.The horizontal components cancel by virtue of the
counter-rotation.
The amount of fly-wheel
unbalance is precisely chosen to produce a 1000 pound peak to peak
variation of force during each rotation of the fly-wheels at the proper
speed. A tachometer indicator Is provided in the control unit, together
with a speed, adjustment, to insure operation at the correct rate of 8
cycles per second. |
