Results 21 to 30 of about 2,580,794 (302)

Experimental investigations of the dynamic responses of a multi-link mechanism with revolute clearance joints

open access: yesAdvances in Mechanical Engineering, 2021
Joint clearance is unavoidable in the revolute joint of multi-link mechanism. Excessive value of joint clearance generally leads to the noise, vibration, and fatigue failure.
Xiaofeng Li   +4 more
doaj   +1 more source

3D Formulation for Revolute Clearance Joints [PDF]

open access: yes, 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
openaire   +2 more sources

Research on Dynamic Characteristic of Rudder Transmission System with Multiple Clearance Joints

open access: yesXibei Gongye Daxue Xuebao, 2020
In order to meet the characteristics including small clearance, heavy load and large contact area of joints existed in rudder transmission system, a new normal contact force model is established, which is suitable for the large-area contact process and ...

doaj   +1 more source

Numerical simulation of a model of vibrations with joint clearance [PDF]

open access: yesInternational Journal of Computer Applications in Technology, 2008
Motivated by the problem of vibrations due to joint clearance between components in complex mechanical systems, we study in this paper the motion of a beam between rigid obstacles. We assume that the material is elastic and the motion is planar.
Dumont, Yves, Paoli, Laetitia
openaire   +2 more sources

Dynamic Response of Multibody Systems with Multiple Clearance Joints [PDF]

open access: yesJournal of Computational and Nonlinear Dynamics, 2011
A general methodology for the dynamic modeling and analysis of planar multibody systems with multiple clearance joints is presented. The inter-connecting bodies that constitute a real physical mechanical joint are modeled as colliding components, whose dynamic behavior is influenced by the geometric, physical and mechanical properties of the contacting
Flores, Paulo, Lankarani, Hamid M.
openaire   +4 more sources

Dynamic Parameter Identification of a Pointing Mechanism Considering the Joint Clearance

open access: yesRobotics, 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
doaj   +1 more source

Clearance of proteoglycan from joint cavities. [PDF]

open access: yesAnnals of the Rheumatic Diseases, 1987
The rate of loss from the synovial cavity of proteoglycan subunit, a major constituent of cartilage, has been measured in rabbits with and without experimental arthritis. The effect of aggregation between proteoglycan and hyaluronic acid upon the rate of elimination has also been investigated.
D P, Page-Thomas   +3 more
openaire   +2 more sources

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

Dynamic response analysis for multi-degrees-of-freedom parallel mechanisms with various types of three-dimensional clearance joints

open access: yesInternational Journal of Advanced Robotic Systems, 2021
For spatial multibody systems, the dynamic equations of multibody systems with compound clearance joints have a high level of nonlinearity. The coupling between different types of clearance joints may lead to abundant dynamic behavior.
Jia Yonghao, Chen Xiulong
doaj   +1 more source

Nonlinear Dynamics and Control of Crank-Slider Mechanism with Multiple Clearance Joints [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2015
In the current study, behavior of crank-slider mechanism with single and multiple clearance joints are analyzed. Using Lankarani-Nikravesh theory for estimating discontinuous contact forces in clearance joints, relevant systems have been mathematically ...
Morteza Dardel   +3 more
doaj   +1 more source

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