Precision tracking control of a dual-stage measuring machine

Autor:	Michael Ringkowski, Eckhard Arnold, Simon Hartlieb, Tobias Haist, Wolfgang Osten, Oliver Sawodny
Rok vydání:	2022
Předmět:	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications
Zdroj:	at - Automatisierungstechnik. 70:646-661
ISSN:	2196-677X 0178-2312
Popis:	Modern production requires shorter measuring cycles of measuring machines, which can be achieved with highly dynamic references causing dynamic deviations of the actual tool-center-point (TCP) position. To minimize the TCP tracking error, the considered measuring machine is extended with a redundant axis and a modular control concept is proposed. For this dual-stage actuation setting, a higher-level reference allocation module exploits the resulting redundancy and yields suitable position references for the lower-level controlled subsystems. On the higher-level, two dual-stage control concepts are presented, yielding both significantly reduced tracking errors in experiments compared to using only the main axis. Furthermore, to deal with strongly spatially varying friction of the main axis of the considered measuring machine, its lower-level control system is improved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ba960d335185e16163e40fa534ec92f https://doi.org/10.1515/auto-2021-0165 Zobrazit plný text záznamu