Zobrazeno 1 - 10
of 152
pro vyhledávání: '"MA Shangjun"'
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 42, Iss 4, Pp 634-642 (2024)
To reveal the dynamic load distribution characteristics of planetary roller screw mechanism under the high-speed operating conditions, based on the spiral surface equation and deformation coordination relationship, a static contact force calculation
Externí odkaz:
https://doaj.org/article/dde92c75f7f94f0e8d54fe34a5970191
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 42, Iss 3, Pp 540-549 (2024)
The helix surface model of planetary roller screw mechanism (PRSM) is established by utilizing the parametric equations of space surface according to the structural features of screw, roller and nut. The helix surface model of PRSM is improved in con
Externí odkaz:
https://doaj.org/article/c094ee44e80f47d5b36fc5b3faa176e7
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 4, Pp 670-678 (2023)
Based on the structural characteristics of ring-shaped roller screw mechanism (RRSM), helical equations of the screw, roller and nut are derived. Meshing equations at the screw-roller and nut-roller interfaces are developed, which can be used to calc
Externí odkaz:
https://doaj.org/article/599f3250d74442cdbdd0dddb3c707805
Publikováno v:
Jixie chuandong, Vol 47, Pp 16-21 (2023)
In order to study the dynamic characteristics of flap transmission mechanism with clearance joints, based on an improved nonlinear normal impact force model with variable stiffness, and the elastic factor of connecting rod, the angular velocity and a
Externí odkaz:
https://doaj.org/article/299dc8cecf4a4908b0bbb68fbe6a8cc1
Publikováno v:
Jixie chuandong, Vol 40, Pp 14-19 (2016)
Considering the influence of different nut installation modes,the finite element model of calculating the load distribution under the different working temperatures of the planetary roller screw mechanism（ PRSM） is established. The model is verif
Externí odkaz:
https://doaj.org/article/f9090d252f0345a09c180826b3e17485
Publikováno v:
Jixie chuandong, Vol 40, Pp 1-5 (2016)
In order to study the dynamic performance of mechanism with lubricated clearance joint,an improved transition force model is established,accounts for not only squeeze-film effects,but also wedge-film effects,and is applicable to both long and short b
Externí odkaz:
https://doaj.org/article/a557b5ccb7b443a482c02ad1585cfbc8
Publikováno v:
Jixie chuandong, Vol 40, Pp 106-110 (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 PR
Externí odkaz:
https://doaj.org/article/927145533f4a4e83b070cc0028318f1b
Publikováno v:
MATEC Web of Conferences, Vol 306, p 01001 (2020)
A dynamic simulation model of the flap actuation system is developed in this paper to analyze the dynamic interaction behaviours of multiple clearance joints. The nonlinear contact force model and modified Coulomb friction model are adopted in the fo
Externí odkaz:
https://doaj.org/article/1aefc1815afa418088cf02534f69a316
Publikováno v:
MATEC Web of Conferences, Vol 306, p 01003 (2020)
To predict accurately the dynamics performance of planetary roller screw mechanism, it is necessary to establish its streamline and engineering-compliant dynamic model, which is the basis of mechanical design and precision control of the system. In t
Externí odkaz:
https://doaj.org/article/90300361476b4ce18767809cced5604c
Publikováno v:
MATEC Web of Conferences, Vol 306, p 02004 (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 base
Externí odkaz:
https://doaj.org/article/f99f238f725c436d907579c5ea8d581c