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Multi-objective Optimization of Mechanisms with Clearances in Revolute Joints
2014Despite extensive work on the evaluation of the dynamic performances of various mechanisms and multi-body mechanical systems with revolute joint clearances, limited work has been conducted in optimizing the performances of these systems. A multi-objective optimization technique is presented to examine and to quantify the effect of combined objective ...
Zhang, Z. +4 more
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Effect of Bearing Clearance on Cardan-Joint Kinematics
15th Design Automation Conference: Volume 3 — Mechanical Systems Analysis, Design and Simulation, 1989Abstract The effect of radial bearing clearance at the intermediate joints of a Cardan-type universal joint has been investigated. It is found that errors in displacement at the output and also intermediate joints occur, and that their amplitudes have a linear relationship to the magnitudes of the radial bearing clearances.
I. S. Fischer, M. C. Liu
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Uncertainty Analysis of Planar Robots With Joint Clearance
Volume 5: 6th Flexible Assembly Conference, 1998Abstract Joint clearance in mechanisms and robots leads to uncertainty in function deviation. Unlike the impact of the link tolerance on the performance quality, the uncertain effect of the joint clearance to the performance can not be eliminated by calibration because of the random nature. In this paper, based on the probability theory,
Jianmin Zhu, Kwun-Lon Ting
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Accuracy Analysis of Parallel Manipulators With Joint Clearance
Journal of Mechanical Design, 2008Due to joint clearance, a parallel manipulator’s end-effector exhibits position and orientation (or collectively referred to as pose) errors of various degrees. This paper aims to provide a systematic study of the error analysis problem for a general parallel manipulator influenced by joint clearance.
Meng, Jian, Zhang, Dongjun, Li, Zexiang
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Analysis and experimental study of the spherical joint clearance
SPIE Proceedings, 2013The spherical joint clearance is a key error factor, which influenced and restricted the application of parallel mechanism in high precision field. This paper discusses the regularity of the spherical joint clearance in the parallel mechanism and its influence on the accuracy of the parallel mechanism in both theoretical and experimental aspects.
Peng Zhao +3 more
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The compliance contact model of cylindrical joints with clearances
Acta Mechanica Sinica, 2005zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Caishan, Zhang, Ke, Yang, Lei
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Minimal Deviation Paths for Manipulators With Joint Clearances
Volume 5B: 38th Mechanisms and Robotics Conference, 2014Manipulator joint clearance is a natural consequence of manufacturing processes. Although most studies in the literature have assumed zero joint clearance, its existence is unavoidable and thus its impact needs to be evaluated. With the miniaturizing trend in engineering products, errors due to joint clearance have become an increasingly important ...
Ming-Cheng Lai, Kuei-Yuan Chan
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Dynamics of machinery with joint clearance
2022Ce Zhang, Jianming Yang, Zongyu Chang
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2021 Global Reliability and Prognostics and Health Management (PHM-Nanjing), 2021
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Kinematic Clearance Sensitivity Analysis of Spatial Structures With Revolute Joints (*)
Journal of Mechanical Design, 1999The paper presents a new method to assess the influence of joint clearances in spatial structures that are composed of links connected by revolute joints. The method allows assessment of the amount by which joint clearances affect the rigid-body position of a generic link of the structure when an external load is exerted on the link.
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