Results 41 to 50 of about 1,882,013 (251)
Study on Wear Characteristics of Revolute Clearance Joints in Mechanical Systems
Micromachines, 2022 The existence of clearance causes contact-impact forces in joints, which lead to surface wear and incessant material loss of the joint surface during the motion of mechanisms.
Zhengfeng Bai +2 more
doaj +1 more source
Remorphable Architectures: Reprogramming Global Bistability through Locally Bistable Metamaterials
Advanced Materials, EarlyView.Local bistable reconfiguration in mechanical metamaterials is leveraged in globally bistable architectures to enable in situ reprogrammable transition pathways through state flip of individual building blocks. The local‐to‐global correspondence of instabilities empowers soft robotic systems with on‐demand morphing traits, as well as aerospace ...
Lei Wu +3 more
wiley +1 more source
Modeling Stiffness and Damping in Rotational Degrees of Freedom Using Multibond Graphs [PDF]
, 2013 A contribution is proposed for the modeling of mechanical systems using multibond graphs. When modeling a physical system, it may be needed to catch the dynamic behavior contribution of the joints between bodies of the system and therefore to ...
BARRE, Pierre-Jean +3 more
core +3 more sources
Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation
Advanced Robotics Research, EarlyView.This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu +3 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
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
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 +2 more
doaj +1 more source
A recursive method for finding revolute-jointed manipulator singularities [PDF]
Proceedings 1992 IEEE International Conference on Robotics and Automation, 1995 A geometric application of screw theory is used to develop a recursive algorithm for computing all singular configurations of revolute-jointed manipulators with arbitrary link geometries and an arbitrary number of joints. The depth of the recursion is linear in the number of joints, n, while the computational burden is proportional to 2n−2. This method
openaire +2 more sources
Advanced Robotics Research, EarlyView.Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek +3 more
wiley +1 more source
Kinematic Analysis and Trajectory Planning of the Orthoglide 5-axis [PDF]
, 2015 The subject of this paper is about the kinematic analysis and the trajectory planning of the Orthoglide 5-axis. The Orthoglide 5-axis a five degrees of freedom parallel kinematic machine developed at IRCCyN and is made up of a hybrid architecture, namely,
Caro, S +3 more
core +3 more sources