Results 31 to 40 of about 1,748,333 (297)

Error Uncertainty Analysis in Planar Closed-Loop Structure with Joint Clearances

open access: yesMetals, 2021
For planar closed-loop structures with clearances, the angular and positional error uncertainties are studied. By using the vector translation method and geometric method, the boundaries of the errors are analyzed.
Yushu Yu, Jinglin Li, Xin Li, Yi Yang
doaj   +1 more source

Dynamics and Wear Prediction of Mechanisms Considering Multiple Clearances and Coatings

open access: yesLubricants, 2023
The increase in joint clearance and system vibration caused by joint wear are important factors that may lead to the failure of the mechanism and a decrease in the motion accuracy of the actuator.
Qian Jing, Hongzhao Liu
doaj   +1 more source

Effect of Multi-Joint Clearance Coupling on Shimmy of Nose Landing Gear

open access: yesAerospace, 2023
The existence of joint clearances in the nose landing gear (NLG) is inevitable and significantly affects shimmy. It was found that the interaction of each joint clearance is closely related to the analysis of shimmy stability.
Guang Feng, Bingyan Jiang, Yiyao Jiang
doaj   +1 more source

Pearson’s correlation between minimum toe clearance (MTC) variability and the variability of lower limb joint angles.

open access: yes, 2022
Pearson’s correlation between minimum toe clearance (MTC) variability and the variability of lower limb joint angles.
Prabhat Pathak (11902161)   +5 more
core   +1 more source

The Effects of Joint Clearance on the Dynamics of the 3-RPR Planar Parallel Manipulator [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2018
In reality, clearances in the joints are inevitable due to the defects arising from manufacturing process, design tolerances, and wearing after a certain working period.
Seyyed Mojtaba Varedi-Koulaei   +1 more
doaj  

Research on High Precision Stiffness Modeling Method of Redundant Over-Constrained Parallel Mechanism

open access: yesSensors, 2023
Traditional stiffness modeling methods do not consider all factors comprehensively, and the modeling methods are not unified, lacking a global stiffness model.
Sen Wang   +5 more
doaj   +1 more source

Research on Influence of Joint Clearance on Precision of 3-TPT Parallel Robot [PDF]

open access: yesMechanical Sciences, 2019
The error model of the working accuracy of parallel mechanism was established in this paper. The D-H matrix method and error independent method were used to analyze the clearance error of mechanism joint based on the inverse position kinematics solution.
C. Zhu, Z. Zhao
doaj   +1 more source

Investigation Into the Effect of Joint Clearance on the Dynamics of a Biomechanical Energy Harvesting System

open access: yesIEEE Access, 2023
The existing clearance in the mechanical joints plays a crucial role in the assembly of mechanical systems, allowing the mobility of its components. However, few studies have explored models that consider joint clearance in the case of electromechanical ...
Ludwin Molina Arias   +2 more
doaj   +1 more source

Dynamic Analysis of a Spatial Mechanism Including Frictionless Spherical Clearance Joint With Flexible Socket

open access: yes, 2017
In this paper, the dynamic response of a spatial four-bar mechanism with a spherical clearance joint with flexible socket is investigated. Previous research treats the socket as a whole rigid part and neglects the flexibility of the socket.
Guofeng Yao, Jianhong Hou, Huili Huang
core   +1 more source

Nonlinear Characteristics of Revolute Joints with Clearance

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.236 The nonlinear contact characteristic of revolute joint with clearance can degrade the performance of deployable structure. In this article, tensile and compressive tests are adopted to investigate the accuracies of the simplest conformal model and nonconformal model for contact, which are used to calculate the ...
Rong-qiang, Liu   +3 more
openaire   +5 more sources

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