Results 41 to 50 of about 21,681 (299)

Direct Kinematics Solution of 3-RCC Parallel Robot using a Semi-Analytical Homotopy Method [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2019
Parallel robots are closed-loop mechanisms presenting very good performances in terms of accuracy, rigidity, and the ability to manipulate large loads. Inverse kinematics problem for most parallel robots is straightforward, while the direct kinematics is
Seyyed Mojtaba Varedi-Koulaei, Masoumeh Rahimi   +1 more
doaj  

Kinematics, workspace and singularity analysis of a multi-mode parallel robot

, 2017
A family of reconfigurable parallel robots can change motion modes by passing through constraint singularities by locking and releasing some passive joints of the robot.
Chablat, Damien, Kong, Xianwen, Zhang, Chengwei   +2 more
core   +2 more sources

Generation of dynamic motion for anthropomorphic systems under prioritized equality and inequality constraints [PDF]

, 2011
In this paper, we propose a solution to compute full-dynamic motions for a humanoid robot, accounting for various kinds of constraints such as dynamic balance or joint limits.
Fourquet, Jean-Yves, Keith, François, Mansard, Nicolas, Saab, Layale, Souères, Philippe   +4 more
core   +3 more sources

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

A novel end-effector upper limb rehabilitation robot: Kinematics modeling based on dual quaternion and low-speed spiral motion tracking control

International Journal of Advanced Robotic Systems, 2022
For patients with upper limb dysfunction after stroke, robot-assisted rehabilitation training plays an important role in functional recovery. The existing upper limb rehabilitation robots have some problems, such as complex mechanisms, insufficient ...
Liaoyuan Li, Jianhai Han, Xiangpan Li, Bingjing Guo, Xinjie Wang, Ganqin Du   +5 more
doaj   +1 more source

Workspace Analysis and Path Planning of a Novel Robot Configuration with a 9-DOF Serial-Parallel Hybrid Manipulator (SPHM)

Applied Sciences, 2023
The development of serial or parallel manipulator robots is constantly increasing due to the need for faster productivity and higher accuracy. Therefore, researchers have turned to combining both mechanisms, sharing the advantage from serial to parallel ...
Mahmoud Elsamanty, Ehab M. Faidallah, Yehia H. Hossameldin, Saber Abd Rabbo, Shady A. Maged, Hongbo Yang, Kai Guo   +6 more
doaj   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

How Do Humans Recognize the Motion Arousal of Non-Humanoid Robots?

Applied Sciences
As non-humanoid robots develop and become more involved in human life, emotional communication between humans and robots will become more common. Non-verbal communication, especially through body movements, plays a significant role in human–robot ...
Qisi Xie, Zihao Chen, Dingbang Luh
doaj   +1 more source

Lower body design of the ‘iCub’ a human-baby like crawling robot [PDF]

, 2006
The development of robotic cognition and a greater understanding of human cognition form two of the current greatest challenges of science. Within the RobotCub project the goal is the development of an embodied robotic child (iCub) with the physical and ...
Becchi, F, Caldwell, DG, Metta, G, Sandini, G, Sinclair, MD, Tsagarakis, NG   +5 more
core   +2 more sources

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source