Results 121 to 130 of about 190 (162)

The Calculation Method for the Load Distribution in the Planetary Roller Screw Mechanism with the Roller Deviation

Journal of Mechanical Engineering
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Solvent-Free Fabrication Methods of Metal Halide Perovskites. [PDF]

Adv Mater
Ji R, Mallick A, Rivkin B, Yuce-Cakir H, Jurchescu OD, Vaynzof Y.   +5 more
europepmc   +1 more source

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Kinematics of Roller Migration in the Planetary Roller Screw Mechanism

Journal of Mechanical Design, Transactions of the ASME, 2012
This paper develops a kinematic model to predict the axial migration of the rollers relative to the nut in the planetary roller screw mechanism (PRSM). This axial migration is an undesirable phenomenon that can cause binding and eventually lead to the destruction of the mechanism.
Steven A Velinsky, Velinsky Steven A
exaly   +2 more sources

A review of planetary roller screw mechanism for development and new trends

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2022
With the rapid development of all electric mechanical equipment in the fields of industrial application, aerospace engineering, and national defense, planetary roller screw mechanism has attracted much attention as a new type actuator of electro-mechanical actuator system.
Linping Wu, Shangjun Ma, Xiaojun Fu
exaly   +2 more sources

A comprehensive analysis of contact kinematics for planetary roller screw mechanism

Tribology International, 2023
Mingcai Xing, Jinquan Xu
exaly   +2 more sources

Dynamics of the Planetary Roller Screw Mechanism

Journal of Mechanisms and Robotics, 2015
This paper develops the dynamic equations of motion for the planetary roller screw mechanism (PRSM) accounting for the screw, rollers, and nut bodies. First, the linear and angular velocities and accelerations of the components are derived. Then, their angular momentums are presented.
Matthew H. Jones, Steven A. Velinsky, Ty A. Lasky   +2 more
openaire   +1 more source

An efficient method for the dynamic analysis of planetary roller screw mechanism

Mechanism and Machine Theory, 2020
Abstract A dynamic model of the planetary roller screw mechanism (PRSM) is proposed by combining Lagrange's method and Newton's second law, which can be used to determine the motion and internal forces of the PRSM efficiently. The generalized forces corresponding to the rotational angles of the screw and carrier are given with considering the forces ...
Xiaojun Fu, Geng Liu, Shangjun Ma
exaly   +2 more sources

Meshing characteristics analysis of planetary roller screw mechanism with misalignment

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2023
In this study, a meshing model for planetary roller screw mechanism (PRSM) with misalignment is established, considering misalignment angle and misalignment azimuth angle. By incorporating these misalignment variates into space coordinate transformation matrices, the meshing equations of screw-roller and nut-roller interfaces are derived to explore the
Wei Cai, Xiaojun Fu, Shangjun Ma, Geng Liu   +3 more
openaire   +1 more source

A Comprehensive Contact Analysis of Planetary Roller Screw Mechanism

Journal of Mechanical Design, 2016
A comprehensive contact analysis model to determine the contact positions and clearances of mating thread surfaces in the planetary roller screw mechanism (PRSM) is proposed in this paper. By introducing a three-dimensional clearance vector, the modified conditions of continuous tangency of mating surfaces are established, in which the clearances along
Xiaojun Fu, Geng Liu, Shangjun Ma, Ruiting Tong, Teik C. Lim   +4 more
openaire   +1 more source