Non-linear modelling and compound intelligent control of pulsed gas tungsten arc welding dynamics

被引:8
作者
Chen, S. B. [2 ,3 ]
Wu, J. [1 ]
Du, Q. Y. [2 ,3 ]
机构
[1] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA
[2] Shanghai Jiao Tong Univ, Dept Mat Sci, Shanghai 200030, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Engn, Shanghai 200030, Peoples R China
基金
中国国家自然科学基金;
关键词
fuzzy control; gas tungsten arc welding; non-linear Hammerstein model; self-tuning control; NEURAL-NETWORKS; FUZZY; GTAW;
D O I
10.1243/09596518JSCE1063
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Gas tungsten arc welding (GTAW) dynamics is a highly complicated process with strong non-linearity, time variability, multiple interference, and uncertainty. The present paper uses a non-linear Hammerstein model to describe the welding process. Based on the model, a compound intelligent controller integrating a non-linear self-tuning controller with a fuzzy logic controller is developed to regulate the welding process. Welding experiments have been conducted and verify that the proposed controller has faster response speed and steadier weld-seam formation.
引用
收藏
页码:113 / 124
页数:12
相关论文
共 25 条
[1]   ARTIFICIAL NEURAL NETWORKS APPLIED TO ARC-WELDING PROCESS MODELING AND CONTROL [J].
ANDERSEN, K ;
COOK, GE ;
KARSAI, G ;
RAMASWAMY, K .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1990, 26 (05) :824-830
[2]  
[Anonymous], LECT NOTES ELECT ENG
[3]   Design and analysis of a welding robot [J].
Bahrami-Samani, Mehrdad ;
Agahi, Maryam ;
Moosavian, S. Ali A. .
2006 IEEE INTERNATIONAL CONFERENCE ON AUTOMATION SCIENCE AND ENGINEERING, VOLS 1 AND 2, 2006, :454-+
[4]   LEARNING AND TUNING FUZZY-LOGIC CONTROLLERS THROUGH REINFORCEMENTS [J].
BERENJI, HR ;
KHEDKAR, P .
IEEE TRANSACTIONS ON NEURAL NETWORKS, 1992, 3 (05) :724-740
[5]   Self-learning fuzzy neural networks for control of uncertain systems with time delays [J].
Chen, SB ;
Wu, L ;
Wang, QL .
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS, 1997, 27 (01) :142-148
[6]  
Chen SB, 2000, WELD J, V79, p151S
[7]   Inspection of weld shape based on the shape from shading [J].
Du, QY ;
Chen, SB ;
Lin, T .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2006, 27 (7-8) :667-671
[8]  
DU QY, 2005, THESIS SHANGHAI JIAO
[9]  
HAOER R, 1978, P 4 INT FED AUT CONT, P79
[10]  
ISERMAN R, 1980, AUTOMATICA, V16, P515