Title: Modelling and system identification of a high precision measurement machine

Authors: J.A. Tarbutton, T.R. Kurfess

Addresses: Clemson University, Clemson, SC 29634, USA. ' Clemson University, Clemson, SC 29634, USA

Abstract: This paper presents methods of parameter determination for models of a continuously scanning Universal Measuring Machine (UMM). The UMM measures parts by actuating linear and rotary motors. The parameters of these motors must be determined for high performance control and decreased tuning time. The machine tool parameters are determined both by a manual parameter determination approach using tailored tests and knowledge of the machine parameters as well as by system identification. A comparison of both methods shows that system identification can be used to accurately determine the motor parameters. Potential adaptive auto-tuning of the machine using this approach is discussed.

Keywords: system identification; linear motors; eddy current damping; universal measurement machines; UMM; precision measurement; machine tool parameters; adaptive auto-tuning; modelling; scanning.

DOI: 10.1504/IJMR.2008.017416

International Journal of Manufacturing Research, 2008 Vol.3 No.2, pp.198 - 215

Published online: 06 Mar 2008 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article