Review on Motion and Load-Bearing Characteristics of the Planetary Roller Screw Mechanism

Studying the motion and load-bearing characteristics of planetary roller screw mechanism is basis for structural design performance optimisation mechanism. The mechanical structures working principles different kinds mechanisms are summarised. Published papers on kinematic, dynamic models reviewed. Based slip state in point contacts at screw–roller nut–roller interfaces, kinematic divided into three types. finite element method numerical theory two main methods used to develop models. Current differ mainly concerning whether they take rotation consideration. In this work, each kind model presented detail along with relevant literature. conclusions type discussed, an overview future evolution given.