| 基于视觉技术的铝合金TIG焊接过程自适应控制 |
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| 引用本文： | 王建军,林涛,陈善本,胡军川. 基于视觉技术的铝合金TIG焊接过程自适应控制[J]. 焊接学报, 2003, 24(4): 17-20,24 |
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| 作者姓名： | 王建军 林涛 陈善本 胡军川 |
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| 作者单位： | 上海交通大学,材料科学与工程学院,上海,200030 |
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| 基金项目： | 上海市科委重点攻关项目 (0 2 1111116)，教育部博士点基金资助项目 (2 0 0 2 0 2 480 15 ) |
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| 摘 要： | 将视觉传感技术与自适应控制技术相结合用于铝合金TIG焊接过程质量控制。分析了铝合金焊接过程的特点，将随机系统理论引入焊接过程，建立了焊接参数与熔池几何参数之间的随机系统模型，实现了对模型参数的在线辨识。设计了基于最小方差调节的自适应焊接电流调节器。试验结果表明，自适应控制方法可以实现对铝合金TIG焊缝成形的良好控制。
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| 关 键 词： | 铝合金 TIG焊 自适应控制 视觉传感 质量控制 系统辨识 焊接 |
| 文章编号： | 0253-360X(2003)04-17-05 |
| 收稿时间： | 2003-01-16 |
Adaptive control based on vision technology for aluminium alloy TIG welding |
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| WANG Jian-jun,LIN Tao,CHEN Shan-ben and HU Jun-chuan. Adaptive control based on vision technology for aluminium alloy TIG welding[J]. Transactions of The China Welding Institution, 2003, 24(4): 17-20,24 |
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| Authors: | WANG Jian-jun LIN Tao CHEN Shan-ben HU Jun-chuan |
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| Affiliation: | School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China,School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China,School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China and School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | In this paper,the vision technology with adaptive control technology are used in TIG welding quality control of the aluminium alloy.The specialties of the TIG welding process for aluminium alloy are analysed,introduced stochastic system theory into the welding process.Then,stochastic models between welding condition and the parameters of weld pool have been established and the on-line identification of the model parameters is realized.The adaptive welding current adjuster based on the minimum variance theory is designed.The experiments show that adaptive system is excellent in controlling weld bead for aluminium alloy TIG welding. |
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| Keywords: | aluminium alloy TIG welding system identification adaptive minimum variance control |
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