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Design and Analysis of an Intelligent Toilet Wheelchair Based on Planar 2DOF Parallel Mechanism with Coupling Branch Chains [PDF]

open access: yesSensors, 2021
Due to the fixed size of the structure or the possibility of only simple manual adjustment, the traditional toilet wheelchair cannot easily be adapted to the size of the user or the toilet. In this paper, a planar two-degree-of-freedom parallel mechanism
Xiaohua Shi, Hao Lu, Ziming Chen
doaj   +2 more sources

Development of Wrist Interface Based on Fully Actuated Coaxial Spherical Parallel Mechanism for Force Interaction [PDF]

open access: yesSensors, 2021
To develop a wrist robotic exoskeleton-type interface (REI) for force interaction, it should have a suitable range of motion similar to human wrist activities of daily living, large torque output performance, and low moving parts inertia for dynamic ...
Jaeyong Lee, Hyungjoo Kim, Woosung Yang
doaj   +2 more sources

A Sensor Based on a Spherical Parallel Mechanism for the Measurement of Fluid Velocity: Physical Modelling and Computational Analysis [PDF]

open access: yesSensors, 2018
In this article, a new method was developed to measure the velocity of a fluid using a sensor, based on the use of a spherical parallel mechanism with three degrees-of-freedom (DOF).
Roque Saltarén   +3 more
doaj   +2 more sources

Optimizing the Rigid or Compliant Behavior of a Novel Parallel-Actuated Architecture for Exoskeleton Robot Applications

open access: yesFrontiers in Robotics and AI, 2021
The purpose of this work is to optimize the rigid or compliant behavior of a new type of parallel-actuated robot architecture developed for exoskeleton robot applications.
Justin Hunt, Hyunglae Lee
doaj   +1 more source

A Decoupled 6-DOF Compliant Parallel Mechanism with Optimized Dynamic Characteristics Using Cellular Structure

open access: yesMachines, 2021
This paper presents a novel six degrees-of-freedom (DOF) compliant parallel mechanism (CPM) with decoupled output motions, large workspace of ≥6 mm for translations and ≥12° for rotations, optimized stiffness, and dynamic properties.
Minh Tuan Pham   +4 more
doaj   +1 more source

Repeatability Analysis of an Overconstrained Kinematic Coupling Using a Parallel- Mechanism-Equivalent Model

open access: yesIEEE Access, 2021
A parallel-mechanism-equivalent model for repeatability analysis of an overconstrained kinematic coupling is proposed. An overconstrained Kelvin-type coupling with one additional support is introduced and used for method illustration.
Jianzhong Ding, Xueao Liu, Chunjie Wang
doaj   +1 more source

Research on Control of Stewart Platform Integrating Small Attitude Maneuver and Vibration Isolation for High-Precision Payloads on Spacecraft

open access: yesAerospace, 2021
The Stewart platform, a classical mechanism proposed as the parallel operation apparatus of robots, is widely used for vibration isolation in various fields. In this paper, a design integrating both small attitude control and vibration isolation for high-
Weichao Chi   +3 more
doaj   +1 more source

Multibody Dynamics of Nonsymmetric Planar 3PRR Parallel Manipulator with Fully Flexible Links

open access: yesApplied Sciences, 2020
This paper presents the implementation of the floating frame of reference formulation to model the flexible multibody dynamics of a nonsymmetric planar 3PRR parallel manipulator.
Abdur Rosyid, Bashar El-Khasawneh
doaj   +1 more source

A Deformable Configuration Planning Framework for a Parallel Wheel-Legged Robot Equipped with Lidar

open access: yesSensors, 2020
The wheel-legged hybrid robot (WLHR) is capable of adapting height and wheelbase configuration to traverse obstacles or rolling in confined space. Compared with legged and wheeled machines, it can be applied for more challenging mobile robotic exercises ...
Fei Guo   +3 more
doaj   +1 more source

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