Results 81 to 90 of about 6,838,442 (240)

Configuration synthesis of hoop truss deployable mechanisms for space antenna based on screw theory

AIP Advances, 2019
Hoop truss deployable antenna can realize the communication and data transmission between satellite and earth, which is an important type of satellite antennas, and its configuration design is currently one of the research hotspots in the field of ...
Bo Han, Yundou Xu, Jiantao Yao, Dong Zheng, Xiaoyu Guo, Yongsheng Zhao   +5 more
semanticscholar   +1 more source

Modeling of the youBot in a serial link structure using twists and wrenches in a bond graph [PDF]

, 2010
We present a walk-through tutorial on the modeling of a complex robotic system, like the newly developed desktop mobile manipulator youBot developed by KUKA[5, 4].
Breedveld, Peter, Brodskiy, Yury, Broenink, Jan, Dresscher, Douwe, Stramigioli, Stefano   +4 more
core   +1 more source

Geodesics around line defects in elastic solids

, 1998
Topological defects in solids, usually described by complicated boundary conditions in elastic theory, may be described more simply as sources of a gravity- like deformation field in the geometric approach of Katanaev and Volovich.
A. de Padua, de Sousa Gerbert, Fernando Moraes, Fernando Parisio-Filho, Furtado, Furtado, Gal'tsov, Harris, Holz, Katanaev, Kleman, Kleman, Kröner, Landau, Misner, Moraes, Moraes, Moraes, Tamura, Tod, Vilenkin   +20 more
core   +2 more sources

Non-Inertial Dynamic Analysis of 3-SPS/U Parallel Platform by Screw Theory and Kane’s Method

Actuators
This paper presents an improved method for the non-inertial dynamic analysis of the 3-SPS/U parallel platform (3-SPS/U PM), employing the screw theory and Kane’s method, where S, P, and U denote spherical, prismatic, and universal joints, respectively ...
Tianzhu Wang, Haifeng Yang, Qiang Zhang, Jinhui Fang, Zhenyu Lai, Ruilin Feng, Jianhua Wei, Zhanfeng Wang   +7 more
doaj   +1 more source

Jacobian establishment for“parallel + serial” hybrid robots based on end-effector screw describing coordinate

Jixie chuandong
ObjectiveHybrid robots that combine the advantages of serial/parallel robots have become one of the important research directions in the field of robots.
LI Wei, WANG Hui
doaj  

Symbolic Computation of the Lie Algebra se(3) of the Euclidean Group SE(3): An Application to the Infinitesimal Kinematics of Robot Manipulators

Mathematics
This paper reports an application of the Lie algebra se(3) of the Euclidean group SE(3), which is isomorphic to the theory of screws in the velocity and acceleration analyses of serial manipulators.
Jaime Gallardo-Alvarado, Mario A. Garcia-Murillo, Juan Manuel Tabares-Martinez, X. Yamile Sandoval-Castro   +3 more
doaj   +1 more source

Investigation on the basic principles of human-machine contact force, based on screw theory. [PDF]

Heliyon, 2023
Zhou X, Duan Z.
europepmc   +1 more source

Solid State Analog for He-McKellar-Wilkens Quantum Phase

, 2003
In this letter we investigate the quantum dynamics of a quasiparticle in the presence of a charged screw dislocation submitted to a uniform magnetic field.
Furtado, Claudio, Moraes, Fernando, Ribeiro, C. A. de Lima   +2 more
core   +1 more source

Structural Design and Analysis of Multi-Directional Foot Mobile Robot

Applied Sciences
Traditional mobile robots have limited mobility in complex terrain environments. Generally, the closed-chain leg structure of a foot-type robot relies on the speed difference to turn, but it is difficult to complete the turning action in narrow spaces ...
Hui Yang, Wen Shi, Zhongjie Long, Zhouxiang Jiang   +3 more
doaj   +1 more source

Kinematics and Dynamics of a Translational Parallel Robot Based on Planar Mechanisms

Machines, 2016
In this contribution, a novel translational parallel robot composed of an arrangement of mechanisms with planar motion is presented. Its mobility is analyzed and the position analysis is solved by using equations derived from mechanical constraints ...
Mario A. Garcia-Murillo, Roger E. Sanchez-Alonso, Jaime Gallardo-Alvarado   +2 more
doaj   +1 more source