Results 61 to 70 of about 179,276 (177)

Fast and Reliable Autonomous Surgical Debridement with Cable-Driven Robots Using a Two-Phase Calibration Procedure

open access: yes, 2018
Automating precision subtasks such as debridement (removing dead or diseased tissue fragments) with Robotic Surgical Assistants (RSAs) such as the da Vinci Research Kit (dVRK) is challenging due to inherent non-linearities in cable-driven systems.
Canny, John   +5 more
core   +1 more source

Simulation-based intelligent robotic agent for Space Station Freedom [PDF]

open access: yes
A robot control package is described which utilizes on-line structural simulation of robot manipulators and objects in their workspace. The model-based controller is interfaced with a high level agent-independent planner, which is responsible for the ...
Biegl, Csaba A.   +3 more
core   +1 more source

Kinematic design of a footplate drive mechanism using a 3-DOF parallel mechanism for walking rehabilitation device

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Recently, facilities with the special intention to help people who lack walking ability or even sit in the wheel chair could be seen everywhere. However, in the hospitals, rehabilitation devices, which are used for people to regain their body functions ...
Chu ZHANG   +5 more
doaj   +1 more source

Computer simulation and design of a three degree-of-freedom shoulder module [PDF]

open access: yes, 1989
An in-depth kinematic analysis of a three degree of freedom fully-parallel robotic shoulder module is presented. The major goal of the analysis is to determine appropriate link dimensions which will provide a maximized workspace along with desirable ...
Marco, David   +2 more
core   +1 more source

Kinematics Analysis and Trajectory Planning of 6-DOF Hydraulic Robotic Arm in Driving Side Pile

open access: yesMachines
Given the difficulty in manually adjusting the position and posture of the pile body during the pile driving process, the improved Denavit-Hartenberg (D-H) parameter method is used to establish the kinematics equation of the mechanical arm, based on the ...
Mingjie Feng   +4 more
doaj   +1 more source

Workspace, dexterity and position planning of a 5DOF single-hole laparoscopic surgery robot

open access: yesJournal of Biomechanical Science and Engineering, 2019
This paper aims to optimize the dexterity and best preoperative position of single-hole laparoscopic surgery (SHLS) robot in laparoscopic surgery. A 5DOF SHLS robot was designed with a series-parallel hybrid structure, and the inverse kinematics equation
Heqiang TIAN   +3 more
doaj   +1 more source

Joint-space tracking of workspace trajectories in continuous time [PDF]

open access: yes, 1995
We present a controller for a class of robotics manipulators which provides exponential convergence to a desired end-effector trajectory using gains specified in joint-space.
Getz, Neil H., Marsden, Jerrold E.
core  

Kinetostatic Modeling and Workspace Analysis of Redundant Actuated n-4R Compliant Parallel Pointing Mechanism

open access: yesMicromachines
The workspace of the compliant parallel mechanism (CPM) is generally limited due to the small deformation range of flexible hinges, which are usually at the micro/nano scale.
Jun Ren, Yikang Shu, Youwei Lin
doaj   +1 more source

NEAT-Lamp and Talking Tree: Beyond Personal Informatics towards Active Workplaces

open access: yesComputers, 2017
A growing number of personal informatics (PI) systems have been designed to break the habit of prolonged sitting and to encourage physical activity during workdays and leisure hours.
Fatemeh Moradi, Mikael Wiberg
doaj   +1 more source

Interactions and Optimizations Analysis between Stiffness and Workspace of 3-UPU Robotic Mechanism

open access: yesMeasurement Science Review, 2017
The interactions between stiffness and workspace performances are studied. The stiffness in x, y and z directions as well as the workspace of a 3-UPU mechanism are studied and optimized.
Zhang Dan, Wei Bin
doaj   +1 more source

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