Design and development of a Schönflies-motion parallel robot with articulated platforms and closed-loop passive limbs

Q Meng, XJ Liu, F Xie - Robotics and Computer-Integrated Manufacturing, 2022 - Elsevier
The Delta-like parallel robot, which contains three open-ended Pa (4S) 1 passive limbs,
plays an important role in high-speed pick-and-place operations. To meet the demand in …

On the dynamics of multi-closed-chain robotic mechanisms

A Zahedi, AM Shafei, M Shamsi - International Journal of Non-Linear …, 2022 - Elsevier
Here, a recursive technique based on the Gibbs–Appell (G–A) and the Newton's impact
formulas for dynamic modeling of multi-closed-loop mechanisms has been presented. Each …

Dynamics and control of a 7-DOF hybrid manipulator for capturing a non-cooperative target in space

J He, H Zheng, F Gao, H Zhang - Mechanism and Machine Theory, 2019 - Elsevier
This paper proposes a 7-DOF hybrid serial-parallel manipulator for capturing a non-
cooperative target in space and discusses its dynamics and control. The hybrid manipulator …

Design, analysis, and experiment of a new parallel manipulator with two rotational and one translational motion

L Xu, W Ye, Q Li - Mechanism and Machine Theory, 2022 - Elsevier
Five-axis hybrid machine tools are important equipment for highly efficient precision
machining of complex workpieces, in which a key part is parallel manipulators (PMs) with …

Inverse displacement analysis of a novel hybrid humanoid robotic arm

P Sun, YB Li, ZS Wang, K Chen, B Chen, X Zeng… - … and Machine Theory, 2020 - Elsevier
The application of hybrid mechanisms in the field of humanoid robots has attracted
significant attention. A novel eight-degree-of-freedom hybrid manipulator is proposed to …

Kinematics, dynamics, and load distribution analysis of a 4-PPPS redundantly actuated parallel manipulator

Z Liu, R Tao, J Fan, Z Wang, F Jing, M Tan - Mechanism and Machine …, 2022 - Elsevier
In this paper, the kinematics, dynamics, and load distribution algorithm of a 4-PPPS
redundantly actuated parallel manipulator are investigated with the screw theory. For the …

Dynamic modeling and analysis of a 2PRU-UPR parallel robot based on screw theory

X Chai, M Wang, L Xu, W Ye - Ieee Access, 2020 - ieeexplore.ieee.org
This paper proposes the systemic dynamic modeling and analysis of a 2PRU-UPR parallel
robot with two rotations and one translation based on screw theory, where P, R and U …

Kinematic and dynamic analysis of a novel parallel kinematic Schönflies motion generator

A Arian, M Isaksson, C Gosselin - Mechanism and Machine Theory, 2020 - Elsevier
This paper analyses the kinematics and dynamics of an over-constrained parallel
mechanism with four degrees of freedom providing Schönflies motion with infinite tool …

Burgers viscoelastic model-based variable stiffness design of compliant clamping mechanism for leafy greens harvesting

L Zou, J Yuan, X Liu, J Li, P Zhang, Z Niu - Biosystems Engineering, 2021 - Elsevier
To prevent mechanical damage during the feeding and conveying process for leafy greens
when roots harvesting, it is necessary to redesign the clamping mechanism in consideration …

Experimental analysis of Type II singularities and assembly change points in a 3UPS+ RPU parallel robot

JL Pulloquinga, V Mata, A Valera… - … and Machine Theory, 2021 - Elsevier
Parallel robots (PRs) have singular configurations where the robot gains at least one degree-
of-freedom and loses control. Theoretically, such singularity occurs when the Forward …