Vortex Trajectory of Rotating Shaft Undergoing Vibration Coupling of Parallel Multicylinders

Table 2

Main working conditions during the test and the movement state of each cylinder.

Working condition	Cylinder I counterweight (g)	Cylinder II counterweight (g)	Cylinder III counterweight (g)	Motor speed/r/min
Single-cylinder transmission	0	—	—	600, 650, 700, 750, 800
	127.9	—	—
Three-cylinder unilateral transmission	127.89	0	0	600, 650, 700, 750, 800
	0	227.89	0
	0	0	227.89
	0	0	0
Three-cylinder bilateral transmission	0	0	0	600, 650, 700, 750, 800
	127.89	0	0
	0	227.89	0
	0	0	227.89