REVIEW ARTICLE


Dynamic Simulation of Crank-Group Driving Mechanism with Clearance



Liu Yansong1, Cao Jujiang*, 2, Cai Dongfei3
1 College of Light Industry and Energy, Shaanxi University of Science and Technology, Xi’an, China
2 College of Mechanical and Electronical Engineering, Shaanxi University of Science and Technology Xi’an, China
3 State Grid LiaoNing LiaoYang Electric Power Supply Company LiaoNing China


© 2015 Yansong et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the College of Mechanical and Electronical Engineering, Shaanxi University of Science and Technology Xi’an, China; E-mail: cjjtougao@163.com


Abstract

For the crank-group driving mechanism, the assembly clearances can offer the possibility to remove overcoming processing errors. But the clearances inevitably affect the dynamic characteristics of the mechanism. In this paper, the dynamic simulation model of the crank-group driving mechanism is established by NX/Motion Simulation which is based on the mathematical model of planar link mechanism. The comparative analysis is conducted regarding the dynamic characteristics of the mechanism which is influenced by different clearances, different angular velocity, and different damping. The simulation results show that appropriately increasing the angular velocity, increasing stiffness and damping of the components can effectively inhibit the adverse influences of clearance on the dynamic characteristics of the mechanism.

Keywords: Clearance, Crank-group, Driving mechanism, Dynamic simulation, Angular acceleration, Angular velocity, Material damping.