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Model based feedback control of gas tungsten arc welding: An experimental study
University West, Department of Engineering Science, Division of Automation Systems. (PTW)ORCID iD: 0000-0001-5734-294X
University West, Department of Engineering Science, Division of Automation Systems. (PTW)ORCID iD: 0000-0001-5608-8636
University West, Department of Engineering Science, Division of Automation Systems. Chalmers University of Technology, Department of Signals and Systems,Gothenburgh, Sweden. (PTW)
2015 (English)In: Automation Science and Engineering (CASE), 2015 IEEE International Conference on, IEEE conference proceedings, 2015, 411-416 p.Conference paper, Published paper (Refereed)
Abstract [en]

In order to obtain high structural integrity and joint performance in welding a transient heat conduction model has been utilized to design a model based feedback controller.Gas tungsten arc welding of work-pieces of austenitic steel have been simulated by the finite element method. The basis for controller design is a low order model obtained from parametric system identification. The identification has been performed both on the finite element simulation and on physical welding. The low order model responses show a good agreement with both the finite element simulation result and the physical process response. An experimental study has been performed to verify the approach. This study also explores what experiments are needed for a successful design. It is shown that model based control successfully mitigates perturbations that occur during welding.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015. 411-416 p.
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-8299DOI: 10.1109/CoASE.2015.7294113Scopus ID: 2-s2.0-84952778514OAI: oai:DiVA.org:hv-8299DiVA: diva2:857667
Conference
11th IEEE International Conference on Automation Science and Engineering, CASE 2015; Elite Park Avenue HotelGothenburg; Sweden; 24 August 2015 through 28 August 2015
Note

Article number 7294113

Available from: 2015-09-29 Created: 2015-09-29 Last updated: 2016-02-08Bibliographically approved

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Sikström, FredrikChristiansson, Anna-Karin

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CiteExportLink to record
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  • apa
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