Results 21 to 30 of about 851,816 (312)

Improving the Force Display of Haptic Device Based on Gravity Compensation for Surgical Robotics

Machines, 2022
Haptic devices are applied as masters to provide force displays for telemedicinal robots. Gravity compensation has been proven to be crucial for the accuracy and capability of force displays, which are critical for haptic devices to assist operators ...
Lixing Jin, Xingguang Duan, Rui He, Fansheng Meng, Changsheng Li   +4 more
doaj   +1 more source

Stiffness Modeling of a 2-Dof Over-Constrained Planar Parallel Mechanism

, 2023
Stiffness model acquisition of over-constrained parallel mechanisms is relatively difficult since they have more than necessary kinematic loops. In this study, a stiffness modeling solution for over-constrained parallel mechanisms is proposed while ...
Görgülü, İbrahimcan, Kiper, Gökhan, Dede, Mehmet İsmet Can   +2 more
core   +1 more source

On the Direct Kinematics Problem of Parallel Mechanisms [PDF]

Journal of Robotics, 2018
The direct kinematics problem of parallel mechanisms, that is, determining the pose of the manipulator platform from the linear actuators’ lengths, is, in general, uniquely not solvable. For this reason, instead of measuring the lengths of the linear actuators, we propose measuring their orientations and, in most cases, also the orientation of the ...
Seibel, Arthur, Schulz, Stefan, Schlattmann, Josef   +2 more
openaire   +2 more sources

A bifurcation study to guide the design of a landing gear with a combined uplock/downlock mechanism [PDF]

, 2014
This paper discusses the insights that a bifurcation analysis can provide when designing mechanisms. A model, in the form of a set of coupled steady-state equations, can be derived to describe the mechanism.
Lowenberg, Mark H, James Knowles (1252122), Neild, Simon A, Simon A. Neild (5491001), Knowles, James A C, Mark H. Lowenberg (7121948), Bernd Krauskopf (100472), Krauskopf, Bernd   +7 more
core   +1 more source

A novel multi-link equivalent connection hinge for planar deployable antenna: configuration design, kinematic analysis, and performance validation

Results in Engineering
With the increasing diversification of space missions, large-aperture planar antennas are facing increasingly stringent requirements in terms of surface coplanarity, protrusion-free deployment, and modular scalability.
Bo Chen, Xinlu Wei, Shichao Sun, Zezheng Xing, Yundou Xu, Qifeng Cui, Yongsheng Zhao   +6 more
doaj   +1 more source

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

Frontiers 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

Control of Parallel Mechanisms.

Journal of the Robotics Society of Japan, 1992
There is a great deal of research on control of parallel mechanisms that considers their characteristics or how they may be made best use of. In this review, a dynamic control method by Uecker is introduced. As to force control, it explains effectiveness of parallel mechanisms and a hybrid control scheme by Nguyen.
openaire   +2 more sources

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

, 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

A modular-type robotic arm design having effective torque-speed performance as configuration of coaxial-torque synthesis modules

Engineering Science and Technology, an International Journal
As the applications of robotic arms become increasingly diverse, achieving a high payload-to-weight ratio and superior speed performance has become a critical design consideration.
Jaeyong Lee, Hyomin Kim, Seyoung Cheon, Taeung Kim, Woosung Yang   +4 more
doaj   +1 more source

MOST STABLE MOTION DESIGN OF THE MOBILE ROBOT IN THE SPECIFIED PATH [PDF]

مجله مدل سازی در مهندسی, 2013
In this research, a method for stabilization of the robot motion on the specified path is presented. Also a new hybrid system that is capable of stabilizing the unstable condition is investigated.
A.A. Moosavian, Shahab Hoseyni
doaj   +1 more source