Dynamic response and nonlinear characteristics of multi-link mechanism with clearance joints

被引:11
作者
Jiang, Shuai [1 ]
Zhao, Maoran [2 ]
Liu, Jianan [2 ]
Lin, Yuanpeng [2 ]
Xiao, Linjing [1 ]
Jia, Yonghao [3 ]
机构
[1] Shandong Univ Sci & Technol, Dept Elect & Informat, Jinan 250031, Shandong, Peoples R China
[2] Shandong Univ Sci & Technol, Swinburne Coll, Jinan 250031, Shandong, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Peoples R China
基金
中国国家自然科学基金;
关键词
Revolute clearance; Translational clearance; Chaos; Dynamic; Lubrication; CONTACT FORCE MODEL; RELIABILITY-ANALYSIS; SENSITIVITY-ANALYSIS; INCLUDING JOINTS; CRANK MECHANISM; REVOLUTE JOINTS; SYSTEMS; FRICTION; ERROR; MANIPULATOR;
D O I
10.1007/s00419-023-02449-6
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Revolute clearance and translational clearance often exist in planar mechanisms, which affect accuracy and stability of mechanisms. By using Lagrangian multiplier method, based on the optimized length of each component in the six-bar mechanism, the rigid-body system dynamic equation considering the coupling action of dry friction revolute clearance and translational clearance is established. By using Baumgarte constraint stabilization methodology and combining judgment of contact state at clearance, the general solution strategy of the system dynamic equation considering dry friction revolute and translational clearance is given. The effects of different clearance types on the dynamics of the mechanism are compared and analyzed. Then, chaos phenomena are identified by Poincare map, phase trajectory map and largest Lyapunov exponent. Influence of different friction models on dynamics is studied. The influence of lubrication/dry friction revolute clearance on nonlinear dynamic is analyzed. Influence of various loads on dynamic behavior is analyzed. Effect of various driving speeds on dynamic response and nonlinear characteristic is studied. Finally, correctness of dynamics model dry friction revolute clearance and translational clearance is verified by ADAMS. It is found that the coupling action of clearance affects stability, leading to the decline of performance. Therefore, it is necessary to study dynamics of mechanism with clearance.Kindly check and confirm the corresponding author mail id is correctly identified.it is right
引用
收藏
页码:3461 / 3493
页数:33
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