 | | 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: | | 13288 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8164
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| In English (Mech. Solids): | | 5124 |
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| Yonghao Jia, Jing Kang, and Shuai Jiang, "Dynamics Characteristics Analysis of Multi-Link Mechanism Considering Various Disturbance Factors," Mech. Solids. 60 (4), 3000-3030 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
4 |
Pages |
3000-3030 |
| DOI |
10.1134/S0025654425601697 |
| Title |
Dynamics Characteristics Analysis of Multi-Link Mechanism Considering Various Disturbance Factors |
| Author(s) |
Yonghao Jia (College of mechanical engineering, Taishan University, Taian, 271000 China)
Jing Kang (College of mechanical engineering, Taishan University, Taian, 271000 China)
Shuai Jiang (Swinburne College, Shandong University of Science and Technology, Jinan, 250031 China, jiang_jackson@163.com) |
| Abstract |
Disturbance factors such as clearance, wear, and elastic deformation of components
severely constrain accuracy and stability of mechanism, and further lead to chaotic phenomena, seriously affecting dynamic of mechanism. The main purpose of this paper is to establish a multi-body
system dynamics model of a multi-link mechanism that considers coupling effects of clearance, wear, and elastic deformation of rods, accurately predicting the wear characteristics, dynamic response, and
nonlinear characteristics. Firstly, a wear model for clearance of the rotating pair was established based
on the Archard model. Secondly, establish a model of flexible rods based on Absolute Node Coordinate Formula. Then, Lagrange multiplier method was used to establish exact dynamic equation considering coupling effects of clearance, wear, and elastic deformation of component. Finally, influence
of different parameters on dynamic and wear characteristics were analyzed, and nonlinear characteristics were studied through phase diagrams, Poincaré maps, and maximum Lyapunov exponents. The
results indicate that wear intensifies irregularity of clearance surface contour, leading to an increase in
the instability of dynamic response and a decrease in motion accuracy. Excessive clearance value, and
fast driving speed can both lead to increased wear of motion pair, resulting in decreased stability of mechanism and enhanced chaos. |
| Keywords |
Wear clearance, Rigid-flexible coupling mechanism, Dynamic behavior, Chaos |
| Received |
10 April 2025 | Revised |
28 May 2025 | Accepted |
28 May 2025 |
| Link to Fulltext |
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