Results 221 to 230 of about 11,525,512 (295)

Relevance and Transferability for Parallel Mechanisms With Reconfigurable Platforms

Journal of Mechanisms and Robotics, 2019
The parallel mechanism with a reconfigurable platform retains all advantages of parallel mechanisms and provides additional functions by virtue of the reconfigurable platform, leading to kinematic coupling between limbs that restricts development of the ...
Xi Kang, J. Dai
semanticscholar   +1 more source

The Forced Vibration Analysis of Hexarot Parallel Mechanisms

International Conference on Industrial Technology, 2019
Hexarot is a type of the axisymmetric parallel mechanisms which has become increasingly popular. One of the challenges in hexarots is to analyze their vibration. In this paper, the motion equation of hexarot mechanisms is addressed presented based on the
Siamak Pedrammehr, Houshyar Asadi, S. Nahavandi   +2 more
semanticscholar   +1 more source

Error Space Estimation of Three Degrees of Freedom Planar Parallel Mechanisms

Journal of Mechanisms and Robotics, 2019
This paper develops a geometric method to estimate the error space of 3-DOF planar mechanisms with the Minimum Volume Ellipsoid Enclosing (MVEE) approach. Both the joint clearances and actuator errors are considered in this method. Three typical planar
Jianzhong Ding, Shengnan Lyu, Ting Da, Chunjie Wang, G. Chirikjian   +4 more
semanticscholar   +1 more source

Mechanics of turin parallel robot

Mechanism and Machine Theory, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
SORLI, Massimo, FERRARESI, Carlo, KOLARSKI M., BOROVAC B., VUKOBRATOVIC M.   +4 more
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Constraint singularities of parallel mechanisms

Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292), 2003
The concept of constraint singularity is introduced. This is a phenomenon occurring in parallel mechanisms with reduced freedoms when the screw system, formed by the constraint wrenches in all legs, loses rank.
ZLATANOV, DIMITER, I. Bonev, C. Gosselin
openaire   +2 more sources

Type Synthesis of Parallel Mechanisms With a Constant Jacobian Matrix

Journal of Mechanisms and Robotics, 2018
Jacobian matrix plays a key role in the analysis, design, and control of robots. For example, it can be used for the performance analysis and evaluation of parallel mechanisms (PMs). However, the Jacobian matrix of a PM generally varies with the poses of
Yanzhi Zhao, Yachao Cao, X. Kong, T. Zhao   +3 more
semanticscholar   +1 more source

Sensory redundant parallel mobile mechanism

Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164), 2002
This paper presents a novel design for a mobile robot based on the kinematics of parallel mechanisms. The robot consists of 3 legs, each equipped with an asynchronous driving unit. The legs are connected to the driving units with spherical joints and to the upper plate with a revolute joint.
S. Shoval, M. Shoham
openaire   +2 more sources

A Soft Parallel Kinematic Mechanism

Soft Robotics, 2018
In this article, we describe a novel holonomic soft robotic structure based on a parallel kinematic mechanism. The design is based on the Stewart platform, which uses six sensors and actuators to achieve full six-degree-of-freedom motion. Our design is much less complex than a traditional platform, since it replaces the 12 spherical and universal ...
Edward L, White, Jennifer C, Case, Rebecca, Kramer-Bottiglio   +2 more
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On the Maximization of Joint Velocities and Generalized Reactions in the Workspace and Singularity Analysis of Parallel Mechanisms

Robotica (Cambridge. Print), 2018
Summary An approach for calculating the maximum possible absolute values of joint velocities or generalized reactions in a leg of a parallel mechanism has been considered in this paper.
P. Laryushkin, V. Glazunov, K. Erastova
semanticscholar   +1 more source

Active Compliant Parallel Mechanisms

Volume 5A: 38th Mechanisms and Robotics Conference, 2014
In a novel compliant parallel mechanism, a motor and spring are arranged in a parallel fashion and are connected to a movable lever arm. The motor pushes and pulls on one attachment point and the spring stores and releases energy at a second attachment point.
Matthew Holgate, Thomas G. Sugar
openaire   +1 more source