Results 101 to 110 of about 6,838,442 (240)
Analysis and Synthesis of Compliant Parallel Mechanisms - Screw Theory Approach
Springer Tracts in Advanced Robotics, 2021 Chen Qiu, J. Dai
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A Treatise on the Theory of Screws [PDF]
Nature, 1901 SIR ROBERT BALL'S “Theory of Screws” is one of the most notable modern extensions of theoretical dynamics. It is based on Poinsot's discovery that every set of forces, regarded as acting on a rigid body, is reducible to a force along one definite line and a couple round the line; combined with Chasles's discovery that every instantaneous motion of a ...
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Type Synthesis of Parallel 2R1T Remote Center of Motion Mechanisms Based on Screw Theory
, 2017 The remote center of motion (RCM) mechanism is an important part of a minimally invasive surgery (MIS) robot. As a practical type of RCM mechanisms, 2R1T RCM mechanisms are synthesized in this paper using a modified screw theory method.
Long Huang +3 more
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The Kinematics Analysis of a Novel Self-Reconfigurable Modular Robot Based on Screw Theory
, 2017 This paper introduces our newly designed self-reconfigurable modular robot named Larva-Bot, which has two DOFs with intersecting rotation axis normal to each other.
Yuehua Li +5 more
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Finding the Generalized Forces of a Series-Parallel Manipulator
International Journal of Advanced Robotic Systems, 2013 In this work the kinematic and dynamic analyses of a robot manipulator whose topology consists of parallel kinematic structures with linear actuators are approached by means of the theory of screws and the principle of virtual work.
Mario Garcia-Murillo +2 more
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Multi-Level Behavioral Mechanisms and Kinematic Modeling Research of Cellular Space Robot
MachinesThe cellular space robot (CSR) is a new type of self-reconfigurable robot. It can adapt the variety of on-orbit service tasks with large space spans through multi-level reconfiguration mechanisms.
Xiaomeng Liu +7 more
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2RUS/RRS Parallel Mechanism and Its Kinematics Analysis
Jixie chuandong, 2018 Based on the motion characters of the running cars,a foldable 2 RUS/2 RRS parallel mechanism is proposed as a car motion simulation platform. The geometrical relationship of force screw supplied by the branches is obtained,and the degrees of freedom ...
Geng Mingchao, Zhao Tieshi, Zhang Canguo
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ActuatorsTo address the deployment accuracy issues of multi-frequency band reflector antennas, this study takes a hexagonal prism modular deployable antenna as an example and proposes an accuracy design method.
Qiying Li +6 more
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Workspace and Singularity Analysis of 4-DOF 3R1T Parallel Mechanism with a Circular Rail
RoboticsLimited workspace and singularities are major challenges for parallel mechanisms. This article addresses these issues for a 4-DOF 1-SPS/3-RRRRR parallel mechanism with a circular rail, proposed in our prior work. The mechanism has a 3R1T motion type with
Pavel Laryushkin +3 more
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Screw theory based dynamic balance methods
, 2019 Base vibrations are detrimental to the precision of high-speed robots. When a robot accelerates it induces opposing reaction forces and moments on the supporting base frame. The frame will deflect, vibrate and transmit these vibrations to the robot’s end-effector, the floor and the equipment in the surroundings.
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