Self-calibration of a 6-DOF redundantly actuated parallel mechanism

Changhong Gao, Dacheng Cong, Junwei Han, Zhidong Yang, Xiao Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

6 引用 (Scopus)

摘要

In order to improve the accuracy performance of a six degree-of-freedom (DOF) redundantly actuated parallel mechanism (RAPM), a self-calibration method based on sensor redundancy is presented. The kinematic model of the RAPM is built and its 44 identifiable parameters are determined by QR decomposition of the identification matrix. Consequently, the self-calibration algorithm is formulated and the least-squares method is used to correct kinematic parameters. A guideline for selection of measurement configurations is presented. Numerical simulations are performed to confirm the validity of the proposed calibration algorithm. Simulation results show that the average parameter error of 2.23 mm is reduced to 0.12 mm, and the position and orientation accuracy of the platform can reach 0.05 mm and 0.16 mrad after calibration.

源语言英语
主期刊名2016 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016
出版商Institute of Electrical and Electronics Engineers Inc.
128-132
页数5
ISBN(电子版)9781509023943
DOI
出版状态已出版 - 1 9月 2016
已对外发布
活动13th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016 - Harbin, Heilongjiang, 中国
期限: 7 8月 201610 8月 2016

出版系列

姓名2016 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016

会议

会议13th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016
国家/地区中国
Harbin, Heilongjiang
时期7/08/1610/08/16

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