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Proceedings Paper

Piezoelectric control of a machine tool with parallel kinematics
Author(s): Christian Rudolf; Jörg Wauer; Christian Munzinger; Martin Weis
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Paper Abstract

An adaptronic strut, developed for compensation of the influence of geometric faults in machine tools with parallel kinematic structure, is examined. A simple oscillator model of the strut is built. First, the equations of motions for this simplified model are derived analytically. These information are used for designing a single variable state control based on the principles of the optimal least quadratic regulator (LQR). Afterwards, the controller concept is extended applying an additional PI-controller. Secondly, the strut is modeled using the commercial multi-body system simulation software Msc.Adams. The required system state which is not explicitly given within Msc.Adams primarily has to be estimated. For this task a Luenberger observer is implemented. A similar single variable state control is developed and both designs are compared among themselves when the adaptronic strut is examined under external loads. Finally, the strut is implemented into the model of the complete machine tool and its influence on the behavior of the machine tool is treated.

Paper Details

Date Published: 11 April 2007
PDF: 9 pages
Proc. SPIE 6527, Industrial and Commercial Applications of Smart Structures Technologies 2007, 65270G (11 April 2007); doi: 10.1117/12.714464
Show Author Affiliations
Christian Rudolf, Univ. Karlsruhe (Germany)
Jörg Wauer, Univ. Karlsruhe (Germany)
Christian Munzinger, Univ. Karlsruhe (Germany)
Martin Weis, Univ. Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 6527:
Industrial and Commercial Applications of Smart Structures Technologies 2007
L. Porter Davis; B. K. Henderson; M. Brett McMickell, Editor(s)

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