A Novel Time-Varying Friction Compensation Method for Servomechanism
Joint Authors
Yang, Jun
Feng, Bin
Zhang, Dongsheng
Guo, Shijie
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-19
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Friction is an inevitable nonlinear phenomenon existing in servomechanisms.
Friction errors often affect their motion and contour accuracies during the reverse motion.
To reduce friction errors, a novel time-varying friction compensation method is proposed to solve the problem that the traditional friction compensation methods hardly deal with.
This problem leads to an unsatisfactory friction compensation performance and the motion and contour accuracies cannot be maintained effectively.
In this method, a trapezoidal compensation pulse is adopted to compensate for the friction errors.
A generalized regression neural network algorithm is used to generate the optimal pulse amplitude function.
The optimal pulse duration function and the pulse amplitude function can be established by the pulse characteristic parameter learning and then the optimal friction compensation pulse can be generated.
The feasibility of friction compensation method was verified on a high-precision X-Y worktable.
The experimental results indicated that the motion and contour accuracies were improved greatly with reduction of the friction errors, in different working conditions.
Moreover, the overall friction compensation performance indicators were decreased by more than 54% and this friction compensation method can be implemented easily on most of servomechanisms in industry.
American Psychological Association (APA)
Feng, Bin& Zhang, Dongsheng& Yang, Jun& Guo, Shijie. 2015. A Novel Time-Varying Friction Compensation Method for Servomechanism. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1073361
Modern Language Association (MLA)
Feng, Bin…[et al.]. A Novel Time-Varying Friction Compensation Method for Servomechanism. Mathematical Problems in Engineering No. 2015 (2015), pp.1-16.
https://search.emarefa.net/detail/BIM-1073361
American Medical Association (AMA)
Feng, Bin& Zhang, Dongsheng& Yang, Jun& Guo, Shijie. A Novel Time-Varying Friction Compensation Method for Servomechanism. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1073361
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073361