Abstract
Consumable double-electrode gas metal arc welding (DE-GMAW) is an innovative process, which offers unique advantages to increase productivity and reduce heat distortion. However, it must be appropriately feedback controlled for any practical use. To this end, the authors identified two critical variables as outputs for the control system to be developed. The control variables were then selected to ease the modeling and control design through establishing two decoupled SISO subsystems. Each SISO subsystem was modeled as an interval model, whose parameters were unknown but bounded by known intervals. The intervals were obtained through a set of designed step response experiments. A prediction based interval model control algorithm was then implemented to control the resultant interval models. Closed-loop control experiments verified the effectiveness of the developed control system for this novel welding process.
| Original language | English |
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| Title of host publication | Proceedings of the 17th World Congress, International Federation of Automatic Control, IFAC |
| Edition | 1 PART 1 |
| DOIs | |
| State | Published - 2008 |
| Event | 17th World Congress, International Federation of Automatic Control, IFAC - Seoul, Korea, Republic of Duration: Jul 6 2008 → Jul 11 2008 |
Publication series
| Name | IFAC Proceedings Volumes (IFAC-PapersOnline) |
|---|---|
| Number | 1 PART 1 |
| Volume | 17 |
| ISSN (Print) | 1474-6670 |
Conference
| Conference | 17th World Congress, International Federation of Automatic Control, IFAC |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 7/6/08 → 7/11/08 |
Bibliographical note
Funding Information:This research was funded by the National Science Foundation (NSF) under grant No. DMI-0355324 entitled “Double-electrode gas metal arc welding.”
Keywords
- Advanced process control
- Identification and modelling
- Measurement and instrumentation
ASJC Scopus subject areas
- Control and Systems Engineering