Adaptive Control of Milling Forces under Fractional Order Holds

Rubio Rodriguez, Luis and De la Sen Parte , Manuel (2007) Adaptive Control of Milling Forces under Fractional Order Holds. In: Innovative Algorithms and Techniques in Automation, Industrial Electronics and Telecommunications. Springer, London, UK, pp. 257-261. ISBN 978-1-4020-6265-0

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Abstract

This paper introduces a novel discrete-time modelreference based control of the tool-work-piece interaction force in a milling process. The novelty of the scheme relies on the use of a fractional order hold (FROH) instead of a traditional zero order hold (ZOH) used in the manufacturing literature to obtain a discrete-time model of the continuous system. The additional degree of freedom introduced by the FROH through its correcting gain allows the designer to improve the closed-loop behavior of the time-varying unknown system by an adequate choice of its value. Simulation examples showing the influence of the correcting gain in the closed-loop response are presented and compared.

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