Lagrange-method-based dynamic analysis of multi-stage planetary roller screw mechanism

Li, Xin; Liu, Geng; Fu, Xiaojun; Ma, Shangjun

doi:10.5194/ms-12-471-2021

Cited by 8 publications

(4 citation statements)

References 20 publications

(20 reference statements)

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“…The results obtained from the approach proved that the frictional moment acting on the screw, roller and carrier had a great influence on the transmission efficiency of the mechanism under light or heavy external load. Taking interfacial friction and the Lagrange method into consideration, Li et al 97 proposed a rigid-body dynamic model of the multi-stage PRSM and systematically analyzed friction coefficients and thread pitches under different transmission situations. The simulation results showed that the friction coefficients and contact force of the screw had a significant impact on the transmission efficiency.…”

Section: Transmission Characteristicsmentioning

confidence: 99%

Review on errors and transmission characteristics of the planetary roller screw mechanism

Cheng,

Zu,

Zhou

2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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The planetary roller screw mechanism, a novel high-performance electromechanical servo drive component, holds a central position in leading-edge equipment, attracting significant attention within the engineering community. This paper conducts a comprehensive review of current research and recent breakthroughs in the analysis of errors and transmission characteristics associated with the planetary roller screw mechanism. Drawing on the unique attributes of this mechanism, the analysis of errors is undertaken from two distinct angles: motion errors and machining errors. A foundational examination of the bearing characteristics of this mechanism serves as the cornerstone for assessing its transmission properties. The report delves into the impact on transmission performance from the perspectives of both accuracy and efficiency. In this study, each model and related literature are exhaustively described and examined in detail. Furthermore, we critically evaluate the key discoveries emanating from various models and numerical simulations, shedding light on potential future directions in the realm of errors and transmission characteristics of the planetary roller screw mechanism.

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Section: Transmission Characteristicsmentioning

confidence: 99%

Review on errors and transmission characteristics of the planetary roller screw mechanism

Cheng,

Zu,

Zhou

2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The exploration of nonlinear dynamics [68] in PRSMs and BSMs has been a focal point of recent research, aiming to enhance the understanding of their operational behaviors under various loading and motion conditions. This review synthesizes the contributions from a selection of studies that delve into the dynamic equations of motion, nonlinear modeling, and the implications of these dynamics on the performance and reliability of PRSMs and BSMs [69].…”

Section: Nonlinear Dynamicsmentioning

confidence: 99%

Performance and Challenges of Planetary Roller Screw Mechanism in Complex Conditions: A Comprehensive Review of Recent Progress

Miao,

Tang,

et al. 2024

Preprint

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

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“…A series of research on PRSM have been published internationally with focus on theoretical advancement including the design method [9], motion characteristics Page 2 of 16 Qiao et al Chinese Journal of Mechanical Engineering (2022) 35:87 [10], dynamics [11,12], thermal behavior [13], and load distribution [14,15]. However, only a few studies have been conducted on the design, kinematic characteristics, and dynamic analysis of the RPRSM, which is significantly important for EMAs in the aerospace industry.…”

Section: Introductionmentioning

confidence: 99%

Design and Dynamic Analysis of the Recirculating Planetary Roller Screw Mechanism

Qiao

Liu

Guo

et al. 2022

Chin. J. Mech. Eng.

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The recirculating planetary roller screw mechanism (RPRSM) is a transmission mechanism that engages the screw and nut threaded by multiple grooved rollers. In this paper, firstly, the design method of RPRSM nut threadless area is proposed, and the equations related to the structural parameters of nut threadless area are derived. On this basis, the cross-section design method of roller, screw and nut is constructed according to the actual situation of engagements between the screw/nut and the roller. By adjusting the gap between the two beveled edges and that between the arc and the beveled edge, the accuracy of the thread engagements between the screw/nut and the roller can be improved. Secondly, to ensure the engagements of the screw/nut and the roller, the distance equation from the center surface of the different rollers to the end surface of cam ring is given. Thirdly, combined with the working principle and structural composition of RPRSM, the component model is established according to its relevant structural parameters, and the virtual assembly is completed. Finally, the 3D model is imported into the ADAMS simulation software for multi-rigid body dynamics. The dynamic characteristic is analyzed, and the simulated values are compared with the theoretical values. The results show that the contact forces between the screw/nut and the roller are sinusoidal, mainly due to the existence of a small gap between the roller and the carrier. The maximum collision forces between the roller and cam ring are independent from load magnitude. Normally, the collision force between the roller and the carrier increases as the load increases. When RPRSM is in the transmission process, the roller angular speed in nut threadless area begins to appear abruptly, and the position of the maximum change is at the contact between the roller and the convex platform of cam ring. The design of the nut threadless area and the proposed virtual assembly method can provide a theoretical guidance for RPRSM research, as well as a reference for overall performance optimization.

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Lagrange-method-based dynamic analysis of multi-stage planetary roller screw mechanism

Cited by 8 publications

References 20 publications

Review on errors and transmission characteristics of the planetary roller screw mechanism

Review on errors and transmission characteristics of the planetary roller screw mechanism

Performance and Challenges of Planetary Roller Screw Mechanism in Complex Conditions: A Comprehensive Review of Recent Progress

Design and Dynamic Analysis of the Recirculating Planetary Roller Screw Mechanism

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