NDLI: Adaptive nonlinear contour coupling control for a machine tool system

Content Provider	IEEE Xplore Digital Library
Author	Lee, J.-H. Dixon, W.E. Ziegert, J.C. Makkar, C.
Copyright Year	2005
Description	Author affiliation: Mech. & Aerosp. Eng., Florida Univ., Gainesville, FL (Lee, J.-H.; Dixon, W.E.; Ziegert, J.C.; Makkar, C.)
Abstract	The quality of products from a machine tool system is largely determined by the tolerances maintained, which is a function of how well the desired contour is tracked. To mitigate contour errors in a three axis machine tool feed drive system, the control development in this paper is based on an error system that is transformed into tangential, normal and binormal components to the desired contour (i.e., a cross coupling controller (CCC)). Unlike previous CCCs, the first controller in this paper does not assume exact knowledge of the inertia and friction matrices. Specifically, an adaptive estimate is developed to compensate for uncertain friction and inertial parameters. Lyapunov-based methods are used to craft the adaptive estimate and to prove global asymptotic contour tracking. A second controller is developed for machine tool dynamics that include unknown friction forces and uncertain cutting force disturbances. The second controller is crafted using an integral signum feedback compensation term that yields semi-global asymptotic contour tracking
Starting Page	1629
Ending Page	1634
File Size	403684
Page Count	6
File Format	PDF
ISBN	0780390474
DOI	10.1109/AIM.2005.1511245
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Programmable control Adaptive control Couplings Nonlinear control systems Control systems Machine tools Friction Error correction Feeds Force control
Content Type	Text
Resource Type	Article

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