Title :
Development of a welding process model for H∞-control design
Author :
Zeren, Murat ; Özbay, Hitay ; Yang, Jin
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
In this paper we develop a dynamical input/output model of a gas tungsten arc welding process for H∞-control design. The model is linear time invariant and is based on the heat conduction in weldment. Its impulse response is an infinite sum of infinite dimensional terms. The infinite sum due to the finite thickness of weldment is truncated, and the sum of infinite dimensional terms after truncation is approximated by a finite dimensional system. The controller is designed for this new model, and its performance is tested using the original model
Keywords :
H∞ control; arc welding; control system synthesis; heat conduction; modelling; multidimensional systems; transient response; H∞-control; finite dimensional system; gas tungsten arc welding; heat conduction; impulse response; linear time invariant systems; welding process model; weldment thickness; Control system synthesis; Mathematical model; Partial differential equations; Plasma welding; Process design; Temperature control; Temperature distribution; Thermal variables measurement; Tungsten; Ultrasonic variables measurement;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.478935
