Dynamic Analysis of Flexible Mechanism with Lubrication Clearances Considering Uncertain Parameters

Authors

• Xiulong Chen, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
• Yi Sun, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
• Aiguo Wang, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

Abstract

This paper conducted a dynamic analysis on a seven-link mechanism suitable for a hybriddriven press, simultaneously considering lubrication clearances, interval parameters, and link flexibility. Based on the Lagrange equations of the first kind, the dynamic equations of the flexible mechanism with lubrication clearances under deterministic parameters were established; interval variables were introduced to establish a dynamic model considering interval parameters, and the Chebyshev interval algorithm and the Runge - Kutta method were used to solve the response interval curves of interval parameters such as clearances value, dynamic viscosity, and cross-sectional area. The results show that compared with the results under deterministic parameters, each interval parameter has a minor effect on the displacement and velocity of the slider, while the uncertainty of the cross-sectional area causes the peak interval widths of the slider acceleration and the clearances acting force at revolute joint A to reach 1.49 m/s² and 6.06 N, respectively, which has the most significant impact on the motion shock of the mechanism. The research results provide theoretical support for accurately predicting the dynamic characteristics and optimizing the design of multi-link mechanisms.

Recommended Citation

Chen, Xiulong; Sun, Yi; and Wang, Aiguo (2026) "Dynamic Analysis of Flexible Mechanism with Lubrication Clearances Considering Uncertain Parameters," Journal of System Simulation: Vol. 38: Iss. 6, Article 8.
DOI: 10.16182/j.issn1004731x.joss.25-1114
Available at: https://dc-china-simulation.researchcommons.org/journal/vol38/iss6/8

First Page

1567

Last Page

1582

CLC

TP391.9

Recommended Citation

Chen Xiulong, Sun Yi, Wang Aiguo. Dynamic Analysis of Flexible Mechanism with Lubrication Clearances Considering Uncertain Parameters[J]. Journal of System Simulation, 2026, 38(6): 1567-1582.

Corresponding Author

Wang Aiguo

DOI

10.16182/j.issn1004731x.joss.25-1114