Results 41 to 50 of about 12,512 (217)

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

Kinematic analysis of a 3-DOF asymmetrical planar parallel robot mechanism

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this study, kinematic analysis of a planarparallel robot mechanism with three degrees of freedom (DOF) was performed. Thedifference of the selected mechanism from the other planar mechanisms is thatit has an asymmetric leg structure.
Metin Toz
doaj   +1 more source

FiN‐Kiri: Fabric‐Based Inflatable Kirigami Actuator for Multimodal Soft Robots

Advanced Robotics Research, EarlyView.
This study introduces a type of inflatable fabric‐based kirigami actuator capable of performing bending motion. The actuator is utilized as soft grippers, a crawling robot and a swimming robot. The crawling robot demonstrated extraordinary motion capabilities, such as moving forward, turning and navigating a narrow tunnel.
Yang Yu, Yupei Zhang, Yanqi Yin, Yehui Wu, Jinyao Zhang, Ruiyu Bai, Jiaqiang Yao, Kewei Su, Chenyi Yu, Zhicheng Tian, Naipeng Li, Zhuang Zhang, Bo Li   +12 more
wiley   +1 more source

The Theory of Bonds: A New Method for the Analysis of Linkages

, 2013
In this paper we introduce a new technique, based on dual quaternions, for the analysis of closed linkages with revolute joints: the theory of bonds.
Angeles, Baker, Berge, Blaschke, Danilov, Dietmaier, Goldberg, Gábor Hegedüs, Hans-Peter Schröcker, Hao, Hegedüs, Hegedüs, Hegedüs, Hunt, Husty, Josef Schicho, Karger, Selig, Shafarevich, Wohlhart   +19 more
core   +1 more source

The Microbial Revolution in the World of Joint Replacement Surgery

JBJS Open Access
Background: The prevalence of revision surgery due to aseptic loosening and periprosthetic joint infection (PJI) following total hip and knee arthroplasty is growing. Strategies to prevent the need for revision surgery and its associated health-care costs and patient morbidity are needed.
Arjuna Srikrishnaraj, Brent A. Lanting, Jeremy P. Burton, Matthew G. Teeter   +3 more
openaire   +3 more sources

Generalized Task‐Driven Design of Soft Robots via Reduced‐Order Finite Element Method‐Based Surrogate Modeling

Advanced Intelligent Systems, EarlyView.
A unified, reusable modeling pipeline enables task‐driven design of soft robots across actuator families and task scenarios. High‐fidelity simulations are compressed into compact pseudo‐rigid‐body joint surrogates, while a design‐conditioned meta‐model generates new surrogates from geometry parameters without rerunning finite element method.
Yao Yao, David Howard, Perla Maiolino
wiley   +1 more source

Finite Element Modelling Method and Dynamic Characteristics of the Revolute Joints of a Simply Supported Bar During Dynamic Buckling

Shock and Vibration
The explicit dynamic finite element method (FEM) has been successfully employed for simulating the buckling response of beam or bar structures under axial impact.
Sai Liu, Weigui Zhang
doaj   +1 more source

Measuring Coulomb and Viscous Friction in Revolute Joint

NUST Journal of Engineering Sciences, 2008
In this research work, the emphasis is on the study of the effects of friction in the revolute joint for fine manipulation of robotic arm manipulators.
Touqeer Sohail, Afzaal M. Malik
doaj   +1 more source

Model-Predictive-Control-Based Time-Optimal Trajectory Planning of the Distributed Actuation Mechanism Augmented by the Maximum Performance Evaluation

Applied Sciences, 2021
Trajectory planning for a redundant manipulator is a classic problem. However, because it is difficult to precisely evaluate its maximum performance, an optimization method has been typically used.
Jong Ho Kim, Kyunghwan Choi, In Gwun Jang   +2 more
doaj   +1 more source

Self-Motions of General 3-RPR Planar Parallel Robots [PDF]

, 2008
This paper studies the kinematic geometry of general 3-RPR planar parallel robots with actuated base joints. These robots, while largely overlooked, have simple direct kinematics and large singularity-free workspace. Furthermore, their kinematic geometry
Bonev, I.A., Briot, S., Damien Chablat, Hayes, M.J.D., Husty, M.L., Ilian A. Bonev, Merlet, J.-P., Philippe Wenger, Sekulie, A., Sébastien Briot, Vigen Arakelian, Zlatanov, D.   +11 more
core   +5 more sources