Dynamic characteristics and test research of multibody system considering uneven wear clearances

被引:1
|
作者
Gao, Shun [1 ]
Fan, Shouwen [1 ]
Song, Xining [2 ]
Wang, Wenjuan [3 ]
机构
[1] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Qingshuihe Campus, Chengdu 611731, Sichuan, Peoples R China
[2] Weifang Vocat Coll, Sch Mech & Elect Engn, Weifang 262737, Shandong, Peoples R China
[3] China Mobile Grp Shandong Co Ltd, Jinan 250000, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
9-Bar mechanism; Wear clearances; Dynamic characteristics; Nonlinear dynamics; Test research; SLIDER-CRANK MECHANISM; MULTILINK MECHANISM; JOINT CLEARANCE; REVOLUTE JOINTS; STIFFNESS;
D O I
10.1007/s11071-024-09906-z
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The wear of rotating pair is a significant factor for the failure of mechanical systems. Currently, some scholars have undertaken investigations on wear clearance, but these works often concentrate on basic systems with even wear clearance, while investigations on multibody systems with uneven wear clearances remains scarce. In addition, the research on wear clearance often focuses on theoretical exploration and computer simulation, while the test research is relatively few. Therefore, a modeling method for 9-bar mechanism with multiple uneven wear clearances is derived by using the Archard model and Lagrange method, the effects of wear times and initial clearance values on dynamic characteristics and nonlinear dynamics of mechanism considering uneven wear clearances are investigated. The test bed of 9-bar mechanism considering clearances is designed and the validity of the theoretical model has been confirmed through a comparison between the collected test data and theoretical data. This paper supplies theory for accurately predicting the dynamic characteristics of multibody system containing uneven wear clearances, and provides proof for identifying and repairing the design defects of mechanism.
引用
收藏
页码:16787 / 16809
页数:23
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