Results 11 to 20 of about 1,667,185 (297)

Dynamic Modeling and Analysis of Flexible-Joint Robots with Clearance

open access: yesSensors
The coupling effects of flexible joints and clearance on the dynamics of a robotic system were investigated. A numerical analysis was undertaken to reveal the coupling effects between flexible joints and clearance.
Jing Wang   +5 more
doaj   +6 more sources

Evaluation of Joint Clearance Effects on the Shimmy of Nose Landing Gear

open access: yesAerospace, 2023
Through the establishment of a three-dimensional joint clearance model, the effects of joint clearances at different positions on shimmy stability are evaluated. In this paper, considering the radial, axial and coupling characteristics of joint clearance,
Yiyao Jiang   +5 more
doaj   +4 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

Research on Dynamic Characteristics of Flap Actuation System Considering Joint Clearance and Flexibility

open access: yesMachines, 2022
The flight control effects and flight quality of the aircraft are influenced by the flap actuation system directly. The main motivation of this research is to develop a rigid-flexible model of the flap actuation system with clearance and to explore the ...
Qi Wan   +4 more
doaj   +2 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

Dynamics Analysis of Spatial Parallel Mechanism with Irregular Spherical Joint Clearance

open access: yesShock and Vibration, 2019
Clearances caused by machining accuracy and assembly requirements are regular, but they will be irregular due to the wear of the kinematic pairs. At present, there are few studies on wear of space kinematic pairs.
Xiulong Chen, Yuewen Li
doaj   +2 more sources

Dynamic analysis of a parallel robot with spherical joints with consideration for joint clearance

open access: yesNihon Kikai Gakkai ronbunshu, 2022
This paper proposes a dynamic analysis method for evaluating the vibrational behavior of a parallel robot having spherical joints with clearance. By using variables that represent the relative displacement between the elements of clearance joints as ...
Masumi OHNO, Yukio TAKEDA
doaj   +3 more sources

Effect of Joint Clearance on Landing Gear Retraction Failure

open access: yesAerospace, 2021
A simple method of investigating the effect of joint clearances on landing gear retraction failure is presented and applied to the main landing gear with a single sidestay and a hydraulic actuator.
Sungjoon Cho, Hwanjeong Cho, Dooyoul Lee
doaj   +1 more source

Influence of two kinds of clearance joints on the dynamics of planar mechanical system based on a modified contact force model

open access: yesScientific 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
doaj   +1 more source

Dynamic Characteristics Analysis of an Assembly Robot for a Wine Box Base Considering Radial and Axial Clearances in a 3D Revolute Joint

open access: yesApplied Sciences, 2023
Precisely fitting the bottom sticker of the wine box base to the base model with glue is an important process of the wine box base production line. The influence of joint clearance in the assembly robot on the assembly precision of wine box bases is ...
Yuan Wang   +4 more
doaj   +1 more source

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