Results 11 to 20 of about 1,882,013 (251)
A decentralized approach for the aerial manipulator robust trajectory tracking. [PDF]
PLoS ONEThis paper introduces a new decentralized control strategy for an unmanned aerial manipulator (UAM) constrained to the vertical plane. The control strategy comprises two loops: the first compensates for the aerial vehicle's impact on the manipulator; and
Yarai Elizabeth Tlatelpa-Osorio +2 more
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Lead-Screw-Driven Revolute Joint for Use in the Remote Center of Motion Mechanism
IEEE Access, 2022 The revolute joint of the remote center of motion (RCM) mechanism should be operated within a limited rotation range to ensure patient safety. To achieve this with the conventional revolute joint, the rotation range was limited with the use of software ...
Seongbo Shim, Hyo-Jeong Cha, Joonho Seo
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Revolute joints with clearance in multibody systems [PDF]
Computers & Structures, 2004 A computational methodology for dynamic analysis of multibody mechanical systems with joint clearance is presented in this work. Clearances always exist in real joints in order to ensure the correct relative motion between the connected bodies being the gap associated to them a result of machining tolerance, wear, and local deformations.
Flores, Paulo, Ambrósio, Jorge
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Micromachines, 2023 This paper investigates how the electromechanical response of MEMS/NEMS devices changes when the geometrical characteristics of their embedded flexural hinges are modified. The research is dedicated particularly to MEMS/NEMS devices which are actuated by
Alessio Buzzin +8 more
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3D Formulation for Revolute Clearance Joints [PDF]
, 2016 In this work, a general and comprehensive methodology for the modeling and analysis of spatial multibody systems with revolute clearance joints is presented. The proposed formulation considers the journal and the bearing elements as two cylindrical colliding bodies.
Marques, Pedro Filipe Lima +3 more
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International Journal of Mechanical System Dynamics, 2021 Due to assembly, wear and manufacturing errors and clearance in the joints are inevitable. When the clearance is introduced into a mechanical system, the impact force in the clearance joint will cause undesirable vibration of the system.
Zhengfeng Bai, Fusong Xu, Jijun Zhao
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Scientific Reports, 2023 This study takes the slider-crank mechanism with revolute joint and translational joint as the research object and studies the contact force model of the clearance joint and the influence of the hybrid clearance joints on the nonlinear dynamic behavior ...
Haiyan Tan +6 more
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Quasi Optimal Gait of a Biped Robot with a Rolling Knee Kinematic [PDF]
, 2011 In this paper, we address the problem of optimization of trajectories for a new class of biped robot. The knees of this biped are similar as the anthropomorphic one and have a rolling contact between the femur and the tibia.
ABBA, Gabriel +2 more
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Simple rules to modify pre-planned paths and improve gross robot motions associated with pick & place assembly tasks [PDF]
, 2011 PurposeThis paper aims to describe real time improvements to the performance and trajectories of robots for which paths had already been planned by some means, automatic or otherwise.
Graham-Jones, J. +2 more
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Dynamic Parameter Identification of a Pointing Mechanism Considering the Joint Clearance
Robotics, 2021 The clearance of the revolute joint influences the accuracy of dynamic parameter identification. In order to address this problem, a method for dynamic parameter identification of an X–Y pointing mechanism while considering the clearance of the revolute ...
Jing Sun, Xueyan Han, Tong Li, Shihua Li
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