Hybrid Modeling for Mechanical Systems: Methodologies and Applications

[+] Author and Article Information
I. H. J. Ploemen, M. J. G. van de Molengraft

Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

J. Dyn. Sys., Meas., Control 121(2), 270-277 (Jun 01, 1999) (8 pages) doi:10.1115/1.2802465 History: Received February 16, 1999; Online December 03, 2007


A serial hybrid modeling approach is applied to mechanical systems. Here, hybrid means that models are based on combined structural and empirical approaches. The main system behavior is described by a physical model, while complex internal forces are modeled by black box neural networks. For a special class of systems this methodology is extended and a novel approach is presented modeling the whole system behavior by hierarchical neural networks, that fit the relation between system outputs and internal system variables. Useful information about the nonlinear system can be extracted from the resulting models. The power of hybrid modeling is illustrated with experimental results and some important issues considering the practical implementation are dealt with.

Copyright © 1999 by The American Society of Mechanical Engineers
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