Results 1 to 10 of about 1,882,013 (251)

Dynamic Investigations on the Wear Behavior of a 3D Revolute Joint Considering Time-Varying Contact Stiffness: Simulation and Experiment

open access: yesChinese Journal of Mechanical Engineering, 2023
The existence of the relative radial and axial movements of a revolute joint’s journal and bearing is widely known. The three-dimensional (3D) revolute joint model considers relative radial and axial clearances; therefore, the freedoms of motion and ...
Li Zhang   +3 more
doaj   +2 more sources

Dynamic characteristic of rudder loop with rough revolute joint clearance

open access: yesNonlinear Dynamics, 2023
The joint clearance of rudder loop has a significant impact in achieving the high-precision attitude control of aircraft. This study proposed a novel revolute joint clearance contact model considering surface topography.
Jianan Guo   +4 more
semanticscholar   +2 more sources

A Study on Dynamic Characteristics of Satellite Antenna System considering 3D Revolute Clearance Joint

open access: yesInternational Journal of Aerospace Engineering, 2020
Clearances in the joints of real mechanisms are unavoidable due to assemblage, manufacturing errors, and wear. The dual-axis driving and positioning mechanism is one kind of space actuating mechanism for satellite antenna to implement precise guidance ...
Zhengfeng Bai, Jijun Zhao
doaj   +2 more sources

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.
Liu Rong-qiang   +3 more
doaj   +5 more sources

Error estimation and compensation in 4R and P3R closed-chain mechanisms due to joint clearance: a comparative study [PDF]

open access: yesScientific Reports
Four-bar linkages form the fundamental configuration of many planar mechanisms, and joint clearance is one of the primary factors that introduce deviations from their intended output. This paper presents a performance assessment of planar mechanisms with
Ankur Jaiswal   +5 more
doaj   +2 more sources

A continuous contact force model of planar revolute joint based on fitting method

open access: yesAdvances in Mechanical Engineering, 2017
Both the process of eliminating the clearance in joints and the contact–impact process involve movement of a clearance mechanism, which may reduce transmission accuracy and lengthen the response time. An appropriate continuous contact force model is able
Yuntao Li   +4 more
doaj   +2 more sources

3D Revolute Joint with Clearance in Multibody Systems [PDF]

open access: yes, 2018
The aim of this paper is to understand the influence of radial and axial clearance in the revolute joints on the overall performance of a circuit breaker. A circuit breaker mechanism is made of seven links, seven revolute joints with clearance in both radial and axial direction, four unilateral contacts with friction, and it has forty-two degrees of ...
Narendra Akhadkar   +2 more
semanticscholar   +2 more sources

Dynamic analysis of planar multibody system with a lubricated revolute clearance joint using an improved transition force model

open access: yesAdvances in Mechanical Engineering, 2017
The article introduces a general solution for dynamic analysis of a planar multibody system with revolute lubricated clearance joint. An improved transition force model is established, which includes dry contact force and hydrodynamic forces, accounts ...
Tao Zhang   +3 more
doaj   +2 more sources

Contact Model of Revolute Joint with Clearance Based on Fractal Theory

open access: yesChinese Journal of Mechanical Engineering, 2018
The contact stiffness of a mechanical bonding surface is an important parameter in determining the normal and radial contact force. To improve the calculation accuracy of the contact force model, the surface roughness of the bonding surface and the ...
Shi-Hua Li   +4 more
doaj   +2 more sources

Measuring Coulomb and Viscous Friction in Revolute Joint

open access: yesNUST Journal of Engineering Sciences, 2008
In this research work, the emphasis is on the study of the effects of friction in the revolute joint for fine manipulation of robotic arm manipulators.
Touqeer Sohail, Afzaal M. Malik
doaj   +2 more sources

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