Results 31 to 40 of about 407,889 (323)

A Novel Position Compensation Scheme for Cable-Pulley Mechanisms Used in Laparoscopic Surgical Robots

open access: yesSensors, 2017
The tendon driven mechanism using a cable and pulley to transmit power is adopted by many surgical robots. However, backlash hysteresis objectively exists in cable-pulley mechanisms, and this nonlinear problem is a great challenge in precise position ...
Yunlei Liang   +3 more
doaj   +1 more source

A two-axis cable-driven ankle-foot mechanism [PDF]

open access: yesRobotics and Biomimetics, 2014
Abstract This paper describes a novel cable-driven ankle-foot mechanism with two controllable degrees of freedom (DOF) in dorsiflexion-plantarflexion (DP) and inversion-eversion (IE). The presented mechanism is a proof of concept to demonstrate feasibility.
Ficanha, Evandro M   +2 more
openaire   +1 more source

Solution of inverse geometrico-static problem (IGP) for suspended rigid-flexible coupling parallel mechanism (RFCPM) driven by elastic thin rods [PDF]

open access: yesMechanical Sciences
Rigid-flexible coupling is the development trend of lightweight parallel mechanisms. Different from traditional rigid parallel mechanisms, although the flexible components are light in weight, the large elastic deformation generated by the mechanism will
J. Chen   +6 more
doaj   +1 more source

On the accuracy of $N-1$ wire-driven parallel robots [PDF]

open access: yes, 2013
A $N-1$ wire-driven parallel robot is a robot for which all the $N \ge 3$ wires are connected at the same point of the platform, allowing to control the location of this point. We are interested in the positioning accuracy of such a robot.
Merlet, Jean-Pierre, Jean-Pierre Merlet
core   +1 more source

Investigating the effect of cable force on winch winding accuracy for cable-driven parallel robots

open access: yes, 2022
S.237-241This paper focuses on the winch winding properties of typical driving mechanisms of cable-driven parallel robots. While cable properties have already been studied, the accuracy of winding mechanisms to control cable robots and the interaction ...
Pott, Andreas, Schmidt, Valentin
core   +2 more sources

Modeling and Verification of Cable-Hole Transmission Tension Ratio Considering the Cable Lateral Extrusion

open access: yesMachines
Cable-hole transmission is widely applied in cable-driven mechanisms to reduce the mechanical size. However, the driving tension is attenuated with the cable threading through the hole caused by uncertain factors such as local deformation, friction, and ...
Haiyu Gu   +4 more
doaj   +1 more source

Torque and workspace analysis for flexible tendon driven mechanisms

open access: yes, 2010
Tendon driven mechanisms have been considered in robotic design for several decades. They provide lightweight end effectors with high dynamics. Using remote actuators it is possible to free more space for mechanics or electronics.
Chalon, Maxime   +5 more
core   +1 more source

Design, characterisation and validation of a haptic interface based on twisted string actuation

open access: yesFrontiers in Robotics and AI, 2022
This paper presents the design and experimental characterisation of a wrist haptic interface based on a twisted string actuator. The interface is designed for controlled actuation of wrist flexion/extension and is capable of rendering torque feedback ...
Valeria Skvortsova   +4 more
doaj   +1 more source

A low-cost single-motor-driven climbing robot based on overrunning spring clutch mechanisms

open access: yesInternational Journal of Advanced Robotic Systems, 2022
Forestry monitoring and high-voltage cable inspection demand on low-cost climbing robots. The proposed climbing robot has simple control and low cost, enabling loaded, which drives by a single motor. Based on the overrunning spring clutch mechanisms, two
Yuwang Liu, Tao Yang, Dongqi Wang, Yi Yu
doaj   +1 more source

Path Following Demonstration of a Hybrid Cable-Driven Parallel Robot

open access: yes, 2021
Publisher Copyright: © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.In the context of applications requiring large workspace such as painting of airliners, a cable-driven parallel robot (CDPR) having a manipulator (robot
Michelin, Micaël   +11 more
core   +1 more source

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