Vibration isolation and energy harvesting integrated in a Stewart platform with high static and low dynamic stiffness

ZQ Lu, D Wu, H Ding, LQ Chen - Applied Mathematical Modelling, 2021 - Elsevier
An electromagnetic Stewart platform with high static and low dynamic stiffness is explored to
reduce the vibration in six degrees of freedom (6-dofs) and simultaneously harvest energy …

Time-delay estimation based computed torque control with robust adaptive RBF neural network compensator for a rehabilitation exoskeleton

S Han, H Wang, Y Tian, N Christov - ISA transactions, 2020 - Elsevier
A new approach to gait rehabilitation task of a 12 DOF lower limb exoskeleton is proposed
combining time-delay estimation (TDE) based computed torque control (CTC) and robust …

A 6DOF passive vibration isolator using X-shape supporting structures

Z Wu, X Jing, B Sun, F Li - Journal of Sound and Vibration, 2016 - Elsevier
A novel 6 degree of freedom (6-DOF) passive vibration isolator is studied theoretically and
validated with experiments. Based on the Stewart platform configuration, the 6-DOF isolator …

Fuzzy sliding mode variable structure control of a high-speed parallel PnP robot

G Wu, X Zhang, L Zhu, Z Lin, J Liu - Mechanism and Machine Theory, 2021 - Elsevier
This paper presents the analysis and experimental evaluation of robot dynamics and control
for a four-limb parallel Schönflies-motion generator dedicating to fast pick-and-place …

[HTML][HTML] Design and implementation of fault-tolerant control strategies for a real underactuated manipulator robot

C Urrea, J Kern, E Álvarez - Complex & Intelligent Systems, 2022 - Springer
This paper presents the design and implementation of four control strategies applied to a
real underactuated manipulator robot with 3-DOF (Degrees of Freedom). Additionally, an …

Nonlinear extended state observer-based adaptive higher-order sliding mode control for parallel antenna platform with input saturation

Y He, Y Wu, W Li - Nonlinear Dynamics, 2023 - Springer
This study introduces a robust trajectory tracking controller for a Stewart-type offshore
antenna platform considering unmodeled uncertainties and external disturbances under …

Robust pid optimal tuning of a delta parallel robot based on a hybrid optimization algorithm of particle swarm optimization and differential evolution

YJ Pak, YS Kong, JS Ri - Robotica, 2023 - cambridge.org
In this paper, we propose an approach to tune optimal parameters of a robust PID controller
by means of computed torque control (CTC) strategy for trajectory tracking of a Delta parallel …

Position control of Stewart manipulator using a new extended adaptive fuzzy sliding mode controller and observer (E-AFSMCO)

H Navvabi, AHD Markazi - Journal of the Franklin Institute, 2018 - Elsevier
Previously proposed adaptive fuzzy sliding mode control (AFSMC) and adaptive fuzzy
sliding mode observer (AFSMO) methods are mixed and extended for the case of affine …

Motion-inhibition control of a multi-robot mooring system using an actuating force fuzzy control method

S Ding, T Zhao, W Zhang, F Gao, B Zhu, Z Tang - Ocean Engineering, 2023 - Elsevier
The multi-robot mooring system (MRMS) composed of robots and a moored ship has
characteristics of strong fluid-structure coupling, high nonlinear, complex disturbance, and …

Type Synthesis and Typical Application of 1T2R‐Type Parallel Robotic Mechanisms

F Xie, XJ Liu, T Li - Mathematical Problems in Engineering, 2013 - Wiley Online Library
This paper focuses on the 1T2R‐type (T: translational DOF; R: rotational DOF) parallel
robotic mechanisms (PKMs) and discusses their type synthesis and typical application in five …