- English
- Français
Article contents
Kinematic analysis and multi-objective optimization of a new reconfigurable parallel mechanism with high stiffness
Published online by Cambridge University Press: 30 May 2017
- Guanyu Huang
- Affiliation:Department of Mechanical Engineering, Beijing Jiaotong University, Beijing, 100044, P.R. China E-mails: huangguanyu0@163.com, shguo@bjtu.edu.cn, hbqu@bjtu.edu.cn, 14116352@bjtu.edu.cn
- Sheng Guo
- Affiliation:Department of Mechanical Engineering, Beijing Jiaotong University, Beijing, 100044, P.R. China E-mails: huangguanyu0@163.com, shguo@bjtu.edu.cn, hbqu@bjtu.edu.cn, 14116352@bjtu.edu.cn
- Dan Zhang*
- Affiliation:Department of Mechanical Engineering, Beijing Jiaotong University, Beijing, 100044, P.R. China E-mails: huangguanyu0@163.com, shguo@bjtu.edu.cn, hbqu@bjtu.edu.cn, 14116352@bjtu.edu.cn
- Haibo Qu
- Affiliation:Department of Mechanical Engineering, Beijing Jiaotong University, Beijing, 100044, P.R. China E-mails: huangguanyu0@163.com, shguo@bjtu.edu.cn, hbqu@bjtu.edu.cn, 14116352@bjtu.edu.cn
- Hongyan Tang
- Affiliation:Department of Mechanical Engineering, Beijing Jiaotong University, Beijing, 100044, P.R. China E-mails: huangguanyu0@163.com, shguo@bjtu.edu.cn, hbqu@bjtu.edu.cn, 14116352@bjtu.edu.cn
- *
- *Corresponding author. E-mail:14116353@bjtu.edu.cn
Summary
This paper presents a novel reconfigurable parallel mechanism, which can serve as a machine tool. The proposed parallel mechanism can change its structure parameters by driving a bevel gear system fixed in the base platform. First, the forward and inverse kinematics of the proposed mechanism are investigated. Second, the reachable workspace and Jacobian matrix are conducted. Based on the Jacobian matrix, the stiffness model and dexterity of the end effector are developed in detail. Finally, a multi-objective optimization is performed by using the Genetic Algorithm, and the workspace and global performance indexes of stiffness as well as the dexterity are considered as the performance indices to improve the performance of the reconfigurable parallel mechanism. Finally, Pareto frontier figure and several tables are provided to illustrate the results of the optimization. The results showed the proposed method has improved the performance of the reconfigurable machine tool in terms of its stiffness and dexterity.
Keywords
- Type
- Articles
- Information
- Copyright
- Copyright © Cambridge University Press 2017
Access options
Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)References
- 43
- Cited by