Robust approach to regulate gas tungsten arc welding with process uncertainties

Min Jou*, Jaw Kuen Shiau

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The objective of this research is to evaluate a robust control method to handle varying parameters and unpredictable uncertainties within and between arc welding cycles. The performance of robust control method is compared with PI control algorithm under two conditions: First, where welding conditions are disturbed by process gain variations; and second, when conditions are disturbed by time constant variations. In each case, the analysis demonstrates the superiority of the robust control method over the PI control algorithm. The simulation results show that the developed robust control method has better performance than a traditional PI control.

Original languageEnglish
Pages (from-to)261-266
Number of pages6
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Issue number2
Publication statusPublished - 2006 Apr


  • Gas Tungsten Arc Welding
  • Process Uncertainty Model
  • Robust Control

ASJC Scopus subject areas

  • Mechanical Engineering


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