NDLI: Friction compensation design for velocity-controlled feed drive motions of CNC machines

Content Provider	IEEE Xplore Digital Library
Author	Wei-Fan Lin Syh-Shiuh Yeh Jin-Tsu Sun
Copyright Year	2011
Description	Author affiliation: Institute of Mechatronic Engineering, National Taipei University of Technology, 10608, Taiwan (Wei-Fan Lin; Syh-Shiuh Yeh) \|\| Mechanical and Systems Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan (Jin-Tsu Sun)
Abstract	Feedforward friction torque compensation structure is usually used for friction compensation on the basis of the given position commands, velocity commands, and an integrated friction model. However, for mechanical systems that are actuated by velocity-controlled servomotor packs, the torque compensation structure cannot be applied directly to reduce the effects of friction, and thus a velocity-based friction compensator is required in the motion control design. In this study, a new velocity-based friction compensation structure with an additional velocity input was developed to overcome the adverse effects induced by friction to an extent. A number of circle motion tests with different feedrates were carried out on a three-axis CNC milling machine and the experimental results indicate that a maximum reduction of 58.71% is achieved in the absolute contouring errors during circular motions by the friction compensation structure developed in this study.
Starting Page	182
Ending Page	187
File Size	1853395
Page Count	6
File Format	PDF
ISBN	9781612846989
e-ISBN	9781612847009
DOI	10.1109/WCICA.2011.5970725
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-21
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Friction Feeds Feedforward neural networks Servomechanisms Computer numerical control Motion control CNC machine Friction compensation Velocity control Feed drive motion
Content Type	Text
Resource Type	Article

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