 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12788 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8028
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| In English (Mech. Solids): | | 4760 |
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| Y.P. Lin, J.C. Wang, J.L. Zhang, M.X. An, and S. Jiang, "Research on the Dynamic and Reliability of Planar Multi-Link Mechanisms with Multiple Clearances," Mech. Solids. 59 (3), 1537-1558 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
3 |
Pages |
1537-1558 |
| DOI |
10.1134/S0025654424603331 |
| Title |
Research on the Dynamic and Reliability of Planar Multi-Link Mechanisms with Multiple Clearances |
| Author(s) |
Y.P. Lin (Swinburne College, Shandong University of Science and Technology, Jinan, Shandong Province, 250031 China)
J.C. Wang (Swinburne College, Shandong University of Science and Technology, Jinan, Shandong Province, 250031 China)
J.L. Zhang (Swinburne College, Shandong University of Science and Technology, Jinan, Shandong Province, 250031 China)
M.X. An (School of Machinery and Automation, Weifang University, Weifang, Shandong Province, 261061 China)
S. Jiang (Swinburne College, Shandong University of Science and Technology, Jinan, Shandong Province, 250031 China, jiang_jackson@163.com) |
| Abstract |
This study aims to explore the dynamic behavior of a planar multilink mechanism manifesting multiple clearances under varying operational conditions. It employs the planar six-bar mechanism as the subject of investigation, and deploys the L-N normal collision force model in combination
with the modified Coulomb friction force model to construct a nonlinear dynamic model of a planar
multilink mechanism with multiple revolute pair clearances. The Lagrange multiplier method is utilized to establish the rigid-body dynamics equations of a mechanism containing multiple revolving
clearances. To scrutinize the mechanism’s stability, the paper introduces a novel approach to compose
a kinematic accuracy reliability model which is based on strength-stress interference theory. The
model is solved by numerical calculation. The effects of clearances at different joints and different
numbers of clearance-containing kinematic pairs on the dynamic response, nonlinear characteristics,
and reliability of kinematic accuracy of planar multi-linkage mechanisms are comparatively analyzed.
The findings show that the peak dynamic response of the plane multilink mechanism with multiple
clearances increases and the oscillation frequency of the dynamic response curve increases with the
increase of the driving speed and the increase of the clearance value. Compared to the mechanism
considering a single clearance, when multiple clearances coexist in the mechanism, the nonlinear
dynamic behavior on the mechanism is greater and the dynamic reliability accuracy is significantly
reduced. This study can provide a theoretical basis for the modeling and analysis of the dynamic out-put of plane multilink mechanism with multiple clearances under different working conditions, and
provide a reference for the quantitative analysis of the reliability of multilink mechanism with multiple
clearances. |
| Keywords |
multilink mechanism, multiple clearances, reliability, dynamic response, nonlinear behavior |
| Received |
04 April 2024 | Revised |
22 May 2024 | Accepted |
25 May 2024 |
| Link to Fulltext |
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