Stiffness modeling of some 4-DOF over-constrained parallel manipulators with various constrained wrench forms

N Ye, B Hu - Mechanism and Machine Theory, 2022 - Elsevier
This study aims to build a unified stiffness model of three 4-degree of freedom (DOF) over-
constrained parallel manipulators (PMs), which comprise a novel PM with four constrained …

Synthesis of a 3-RPS Parallel Manipulator Based on Axodes

L Nurahmi, D Gan, SK Agrawal - … and Information in …, 2022 - asmedigitalcollection.asme.org
A spatial displacement of a rigid body can be described as a combination of translation and
rotation about an axis, known as Instantaneous Screw Axis (ISA). As the rigid body moves …

A Graphical User Interface (GUI) System for a Stationary Trainer Used in Lower Limb Rehabilitation

P Sunilkumar, S Mohan, L Rybak - Recent Trends in Product Design and …, 2022 - Springer
This paper presents a graphical user interface system for a lower limb rehabilitation robot.
The mechanism considered for this application is a stationary trainer based on Cartesian …