Results 171 to 180 of about 1,882,013 (251)

Kinetostatic Analysis of Pneumatic Bending Soft Actuator Coupling With Revolute Joint

Journal of Mechanisms and Robotics, 2022
This paper presents the kinetostatic analysis of pneumatic bending soft actuator coupling with revolute joint, aimed to discover the bending performance of soft actuator wearing on physical joint of human body as exoskeleton.
Jiangbei Wang, Yuxuan Wang, Y. Fei, Weidong Chen   +3 more
semanticscholar   +1 more source

Variable Stiff Revolute Joint for Compliant Robot

Volume 6: Design, Systems, and Complexity, 2021
Abstract Over the past decades industrial robot manipulators have expanded throughout the automation landscape with their high degree of repeatability and accuracy. For safety reasons these robots are not allowed to share their workspace along with humans, which limits the various tasks that can be performed by a human-robot ...
Manoj K. Sharma, Christopher Kitts
openaire   +1 more source

Contact Mechanics in Cylindrical Clearance Revolute Joints

Applied Mechanics and Materials, 2013
A comparative study concerning the dynamics of chain drives mechanisms is presented in this article. The study compares the dynamic response using the spherical contact model proposed by Lankarani and Nikravesh with a new enhanced cylindrical model developed by the authors to describe the contact phenomenon in cylindrical clearance revolute joints.
Candida Pereira, Jorge Ambrósio, Amilcar Ramalho   +2 more
openaire   +1 more source

Introducing revolute joints into piezoelectric energy harvesters

Energy, 2020
Abstract In this paper, we originally report an approach for cantilever piezoelectric energy harvesters (PEHs) for frequency tuning and performance improvement. The proposed scheme implements embedment of revolute joint(s) into PEH structure. We investigated two ways of embedment: the prior one is to replace the clamped edge partially with a joint ...
Zhongjie Li, Zhengbao Yang, Hani E. Naguib   +2 more
openaire   +2 more sources

Nonlinear contact and impact of revolute joints

2012 IEEE International Conference on Robotics and Biomimetics (ROBIO), 2012
The contact deformation model of revolute joint is established based on Hertz theory, and the simulation model is developed based on finite element method (FEM). The results obtained from two models are compared. The error of Hertz model is evaluated by comparison with corresponding FEM, which changes with the contact depth and the clearance of ...
Rongqiang Liu, Jing Zhang, Hongwei Guo, Zongquan Deng   +3 more
openaire   +1 more source

Effect of revolute joint mechanism on the performance of cantilever piezoelectric energy harvester

Smart materials and structures (Print), 2019
In this paper, we present a novel method to improve the electric performance of cantilever piezoelectric energy harvesters (PEHs), i.e. by embedding the revolute joint mechanism. The harvester is usually fastened onto a host structure via one edge of the
Zhongjie Li, H. Naguib
semanticscholar   +1 more source

Design of flexure revolute joint based on double compliant curved beam

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2019
In view of the problems of low accuracy and large impact caused by flexure joints during the deployable process, design of an integrated flexure revolute joint for folding mechanisms is important.
Jing Zhang, Hongwei Guo, Zhanqun Zhang
semanticscholar   +1 more source

Artificial joints: A biotechnological revolution

The Surgeon, 2005
HISTORY Palaeontologists have demonstrated arthritic changes in skeletons thousands of years old. The diverse attempts at surgical reconstruction of destroyed joints bear testimony to the remarkable ingenuity of the surgeons of yesteryear, whose efforts were largely sabotaged by material incompatibility and mechanical failure.
openaire   +2 more sources

The 1970s – A joint revolution

Journal of Orthopaedic Nursing, 2009
Summary This article considers how the nature of orthopaedics changed from a focus on immobilisation and nursing care to specialised surgery. Problems of infection and thromboembolism were already a matter for concern, which increased with the increase in technological interventions. This article considers the development of joint surgery in the 1970s
openaire   +1 more source

Parallel Robots with Lockable Revolute Joints

2019
This chapter describes a class of reconfigurable parallel robots consisting of a fixed base and a moving platform connected by n \(\text {R}_\text {b}\)RPS serial chains, with ...
Patrick Grosch, Federico Thomas
openaire   +1 more source