Kinematics of Planetary Roller Screw Mechanism considering Helical Directions of Screw and Roller Threads

Table 3

Comparison of the analytical solutions with simulation results.

	Displacement of nut at point	Displacement of nut at point	Angular velocity of roller ()	Angular velocity of planet carrier ()	Axial speed of nut ()
Simulation results	24.8601 mm	49.8571 mm	22.6647 rad/s	4.5488 rad/s	49.7138 mm/s
Analytical solutions	25 mm	50 mm	23.5620 rad/s	4.7124 rad/s	50 mm/s
Relative error	0.5596%	0.2858%	3.8083%	3.4632%	0.5724%