Title
Identifying Position-Dependent Mechanical Systems: A Modal Approach with Applications to Wafer Stage Control.
Abstract
Increasingly stringent performance requirements for motion control necessitate the use of increasingly detailed models of the system behavior. Motion systems inherently move, therefore, spatio-temporal models of the flexible dynamics are essential. In this paper, a two-step approach for the identification of the spatio-temporal behavior of mechanical systems is developed and applied to a prototype industrial wafer stage with a lightweight design for fast and highly accurate positioning. The proposed approach exploits a modal modeling framework and combines recently developed powerful linear time invariant (LTI) identification tools with a spline-based mode-shape interpolation approach to estimate the spatial system behavior. The experimental results for the wafer stage application confirm the suitability of the proposed approach for the identification of complex position-dependent mechanical systems, and show the pivotal role of the obtained models for improved motion control performance.
Year
Venue
Field
2018
arXiv: Systems and Control
Spline (mathematics),LTI system theory,Wafer,Motion control,Control theory,Interpolation,Mechanical system,Mathematics,Modal
DocType
Volume
Citations 
Journal
abs/1807.06942
0
PageRank 
References 
Authors
0.34
7
4
Name
Order
Citations
PageRank
Robbert Voorhoeve100.34
Robin de Rozario200.34
Wouter H. T. M. Aangenent3103.13
Oomen, T.49517.42