Results 31 to 40 of about 3,814 (247)

Reconfiguration analysis of a 3-DOF parallel mechanism using Euler parameter quaternions and algebraic geometry method [PDF]

open access: yes, 2014
This paper deals with the reconfiguration analysis of a 3-DOF (degrees-of-freedom) parallel mechanism (PM) with multiple operation modes - a disassembly-free reconfigurable PM - using the Euler parameter quaternions and algebraic geometry approach.
Kong, Xianwen
core   +1 more source

Modelling of Modular Robot Configurations Using Graph Theory [PDF]

open access: yes, 2008
Modular robots are systems that can change its geometry or configuration when connecting more modules or when rearranging them in a different manner to perform a variety of tasks.
Baca Garcia, Jose Antonio   +4 more
core   +1 more source

Foldable Joints for Foldable Robots

open access: yes, 2019
Print-and-fold manufacturing has the potential to democratize access to robots with robots that are easier to fabricate using materials that are easier to procure. Unfortunately, a lack of understanding about how motion can be achieved by folding hinders
Sung, Cynthia, Rus, Daniela
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

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

open access: yesInternational 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   +1 more
doaj  

Multijoint passive elastic spine exoskeleton for stoop lifting assistance

open access: yesInternational Journal of Advanced Robotic Systems, 2021
In the task of carrying heavy objects, it is easy to cause back injuries and other musculoskeletal diseases. Although wearable robots are designed to reduce this danger, most existing exoskeletons use high-stiffness mechanisms, which are beneficial to ...
Jiyuan Song   +3 more
doaj   +1 more source

On the forward kinematics of cable-driven parallel robots

open access: yes, 2015
S.3182-3187Most cable-driven parallel robots are kinematically over-constrained mechanisms. This results in a non-trivial computation of the forward kinematic transformation.
Andreas Pott   +3 more
core   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

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

open access: yesApplied 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

An Efficient Stochastic Constrained Path Planner for Redundant Manipulators

open access: yesApplied Sciences, 2021
This brief proposes a novel stochastic method that exploits the particular kinematics of mechanisms with redundant actuation and a well-known manipulability measure to track the desired end-effector task-space motion in an efficient manner. Whilst closed-
Arturo Gil Aparicio, Jaime Valls Miro
doaj   +1 more source

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