1) rotational movement of the mass around the axis,
2) oscillatory movement of the mass,
3) the back-to-set movement of the mass.
Rotational movement. The body makes a flat rotational movement around a motionless axis that does not coincide with the center of gravity of the body, if all its points describe the circles around the motionless axis, remaining parallel to some motionless plane outside the X. An example of this kind of movement is the rotation of the masses attributed to the neck of the steam car’s crank, when the axis of rotation lies outside the body, or the rotation of the motor of the motor, machine, turbine, when, due to the practical impossibility to accurately balance the mass of the rotor, rotation of the axis is spent on the fraction of the millimeter From the center of gravity of the rotor. Both in this way, and in another example, they intend to concentrate the entire rotating mass of M at one point, for example, at point A 419. Point A rotates around the axis passing through the center of rotation of O and the drawing perpendicular to the plane. The radius of rotation in the first example will be the radius of the crookeder, in the second example — the eccentricity of the mass of the rotor in relation to the axis of rotation.
