Research Article

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

Table 4

Comparisons of 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 results5.9200 mm11.9506 mm23.7979 rad/s4.7630 rad/s11.8169 mm/s
Analytical solutions6.25 mm12.5 mm23.5620 rad/s4.7124 rad/s12.5 mm/s
Relative error5.2800%4.3952%1.0012%1.0738%5.4648%