MIMO Direct Model Reference Adaptive Control for Gas Metal Arc Welding

S. Ozcelik, K. L. Moore, S. D. Naidu

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

This paper presents the design and implementation of a Direct Model Reference Adaptive Control (DMRAC) for a GMAW process. A recently developed highly nonlinear fifth order mathematical model for the GMAW process is considered. After simplifications and linearization are performed, the process is modeled as two-input two-output second order system of differential equations. Current and arc voltage are the process outputs, which are controlled by open circuit voltage and wire feed speed, which are chosen as the process control inputs. After the DMRAC is designed, it is implemented on the actual GMAW process. Satisfactory experimental results are obtained. Hence, this new direct adaptive control algorithm allows the control of both current and arc voltage and consequently makes possible to achieve high quality weldings in GMAW processes.

Original languageEnglish (US)
Pages1056-1061
Number of pages6
StatePublished - 1998
Externally publishedYes
EventTrends in Welding Research: Proceedings of the 5th International Conference - Pine Mountain, GA, United States
Duration: Jun 1 1998Jun 5 1998

Other

OtherTrends in Welding Research: Proceedings of the 5th International Conference
CountryUnited States
CityPine Mountain, GA
Period6/1/986/5/98

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    Ozcelik, S., Moore, K. L., & Naidu, S. D. (1998). MIMO Direct Model Reference Adaptive Control for Gas Metal Arc Welding. 1056-1061. Paper presented at Trends in Welding Research: Proceedings of the 5th International Conference, Pine Mountain, GA, United States.