Intelligent modeling of a piezoelectric tube actuator

Morteza Mohammadzaheri, Steven Grainger, Mohsen Bazghaleh, Pouria Yaghmaee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Various model-based control methods are currently used in control of piezoelectric tubes, others such as internal model control and model predictive control are anticipated to be employed soon. All these control systems are designed based on black box models. However, systematic black box modeling of piezoelectric tubes has been overlooked in the literature to a large extent or has been presented in a too brief and faulty way. In this article, a novel structure of artificial neural networks is used to model and to assess the nonlinearity of piezoelectric actuators. Apart from nonlinearity, other features of the achieved models like delay time, sampling time, orders as well as system identification process are clearly stated, and more importantly, it is clarified that different definitions of accuracy are needed for different purposes of black box modeling, with change in model features, the accuracy may decrease for one purpose (e.g. predictive control) and increase for another one (e.g. simulation). This highly critical point has never been raised and addressed in modeling of piezoelectric tubes, and a definition of accuracy which suits static systems/models has been widely used in the past to assess models of piezoelectric tubes which are obviously dynamic. Experimental results support the proposed modeling ideas.

Original languageEnglish
Title of host publicationINISTA 2012 - International Symposium on INnovations in Intelligent SysTems and Applications
DOIs
Publication statusPublished - 2012
EventInternational Symposium on INnovations in Intelligent SysTems and Applications, INISTA 2012 - Trabzon, Turkey
Duration: Jul 2 2012Jul 4 2012

Other

OtherInternational Symposium on INnovations in Intelligent SysTems and Applications, INISTA 2012
CountryTurkey
CityTrabzon
Period7/2/127/4/12

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Keywords

  • Artificial Neural Networks
  • Black Box Modeling
  • Model Accuracy
  • Piezoelectric Tube Actuators

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications

Cite this

Mohammadzaheri, M., Grainger, S., Bazghaleh, M., & Yaghmaee, P. (2012). Intelligent modeling of a piezoelectric tube actuator. In INISTA 2012 - International Symposium on INnovations in Intelligent SysTems and Applications [6246980] https://doi.org/10.1109/INISTA.2012.6246980