Performance and challenges of planetary roller screw mechanism in complex conditions: A comprehensive review of recent progress

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

The Planetary Roller Screw Mechanisms (PRSMs), alongside Ball (BSMs) and Electromechanical Actuators (EMAs), occupies a pivotal role in advancing the precision efficiency of various industrial applications, including aerospace, automotive, high-precision machining tools. Despite their critical advantages such as high load capacity, superior precision, extended lifespan, deployment PRSMs complex operational conditions reveals landscape rife with challenges opportunities for further research. This comprehensive review endeavors to dissect multifaceted aspects PRSMs, focusing on mechanics dynamics, tribology thermal behavior, paramount importance reliability condition monitoring. By synthesizing current research findings, this paper highlights significant advancements understanding static dynamic characteristics intricate interplay between lubrication wear mechanisms, effects performance. Moreover, it delves into models that address impact manufacturing imperfections, waviness defects, these mechanisms. strides made, identifies gaps existing literature, particularly under extreme temperatures, large deformations, loads, advocating holistic approach proposing integrated thermo-mechanical emphasizing need empirical validations, outlines roadmap future studies aimed at facilitating development more robust reliable capable meeting demands scenarios field applications robotics, beyond.

Language: Английский

A multi-roller static model of the planetary roller screw mechanism based on energy method

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

A multi-roller static model for planetary roller screw mechanisms (PRSMs) is proposed using an energy method to obtain contact load sharing and distribution. The relative positions of meshing points within one pitch are considered calculate structural potential by discretization. By combining force balance constraints with the principle minimum energy, optimization problem formulated derive characteristics. validated through finite element simulations existing experimental results, demonstrating that it meets engineering accuracy requirements. more concise comprehensible, enabling account complete deformations, thus making comprehensive. Furthermore, provides a new perspective calculation used analyze influence pitch, threads number thread dedendum on characteristics PRSMs. Analysis reveals distribution non-uniformity increases number. When certain range, decreases.

Language: Английский