Fig. 3

The curve of synchronization index changes with torsional stiffness when 4 important parameters change separately. (a) Change curve of synchrony index with torsional stiffness for different eccentric masses. (b) Change curve of synchrony index with torsional stiffness for different eccentricity radius. (c) Change curve of synchronization index with torsional stiffness at different rotate speed. (d) Change curve of the synchronization index with torsional stiffness for different screen mass.