Results 11 to 20 of about 190 (162)

A comprehensive error analysis of the planetary roller screw mechanism

Advances in Mechanical Engineering, 2022
To reveal the error generation, transmission, and accumulation process, a comprehensive error analysis model is proposed in this paper; furthermore, the model is used to determine the influence on the transmission error and the error sensitivity of a ...
Shangjun Ma, Guanyu Wu, Jianxin Zhang, Wenzhu Deng, Lizhong Xie, Yong Zhou   +5 more
doaj   +2 more sources

A roller taper modification method for load distribution optimization of planetary roller screw mechanism

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
Planetary roller screw mechanism (PRSM) is a novel high-performance linear transmission device. The non-uniformity of load distribution over PRSM threads is a vital problem severely affecting its load-carrying capacity and service performance.
Rui HU, Peitang WEI, Pengliang ZHOU, Huaiju LIU, Xuesong DU, Caichao ZHU   +5 more
doaj   +2 more sources

Review on Meshing Theory of the Planetary Roller Screw Mechanism

Jixie chuandong, 2015
The planetary roller screw mechanism（ PRSM） has high load carrying capacity,high transmission accuracy and high reliability in harsh environment. Because of those advantages,the PRSM is used in a variety of industry applications. The study of PRSM mainly
Liu Geng, Fu Xiaojun, Ma Shangjun, Tong Ruiting   +3 more
doaj   +1 more source

Elastic-plastic Contact Analysis of the Planetary Roller Screw Mechanism

Jixie chuandong, 2016
Aiming at elastic- plastic contact of planetary roller screw mechanism（ PRSM）,a single contact model between screw and roller is established based on the Hertz contact theory and elastic- plastic mechanics,then a method for judging whether the PRSM has ...
Yao Qin, Wu Liyan, Liu Geng, Ma Shangjun, Tong Ruiting   +4 more
doaj   +1 more source

Thread Tooth Modification of the Inverted Planetary Roller Screw Mechanism

Jixie chuandong
Based on the thread tooth load distribution of the inverted planetary roller screw mechanism（IPRSM）, the influence of roller modification and screw modification on the load distribution is analyzed.
Qiao Guan, Hao Zhipeng, Liao Rong, Zhang Nan, Liu Geng   +4 more
doaj   +1 more source

Fatigue lifespan of a planetary roller-screw mechanism

Mechanism and Machine Theory, 2022
Electro-mechanical actuators including planetary roller screw (PRS) support cyclic loads in aeronautical conditions. PRS multiple thread contacts between screw, rollers and nut allow the mechanism to support large loads. However, aeronautical accreditation requires fine prediction of fatigue lifespan.
Lepagneul, Juliette, Tadrist, Loïc, Sprauel, Jean-Michel, Linares, Jean-Marc   +3 more
openaire   +2 more sources

Kinematics of Planetary Roller Screw Mechanism considering Helical Directions of Screw and Roller Threads [PDF]

Mathematical Problems in Engineering, 2015
Based on the differential principle of thread transmission, an analytical model considering helical directions between screw and roller threads in planetary roller screw mechanism (PRSM) is presented in this work. The model is critical for the design of PRSM with a smaller lead and a bigger pitch to realize a higher transmission accuracy. The kinematic
Shangjun Ma, Tao Zhang, Geng Liu, Ruiting Tong, Xiaojun Fu   +4 more
openaire   +1 more source

Friction Torque Analysis of Planetary Roller Screw Mechanism in Roller Jamming

Mathematical Problems in Engineering, 2020
The load distribution model of the planetary roller screw mechanism (PRSM) is established on the basis of Hertz contact theory. The objective is to obtain a friction torque model of the PRSM in roller jamming. An example is provided to calculate the friction torque of the PRSM in roller jamming. Thereafter, the transmission efficiency is calculated.
Linjie Li, Yongling Fu, Shicheng Zheng, Jian Fu, Tianxiang Xia   +4 more
openaire   +1 more source

Study on jamming mechanism of the planetary roller screw mechanism

Journal of Physics: Conference Series, 2019
Abstract This paper explores if there exists jamming phenomena in the planetary roller screw mechanism. Three kinds of jamming phenomena, such as mechanical jamming, dead point jamming, and self-locking jamming, are elaborated by using static analysis of the planetary roller screw mechanism.
Wei Cai, Geng Liu, Shangjun Ma, Guan Qiao, Chuanming Du   +4 more
openaire   +1 more source

Modelling of Electro-mechanical Servo System Based on the Planetary Roller Screw Mechanism [PDF]

MATEC Web of Conferences, 2020
Taking the electro-mechanical servo system as the research object, considering the contact stiffness, friction and clearance of the main components in the electro-mechanical servo system, the analysis model of the electro-mechanical servo system based on
Zhang Jianxin, Du Chuanming, Ma Shangjun, Liu Geng   +3 more
doaj   +1 more source