Adaptive model-based temperature control in friction stir welding
Adaptive model-based temperature control in friction stir welding
复制标题
搅拌摩擦焊中基于自适应模型的温度控制
DOI:
10.1007/s00170-017-0594-5
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Krutzlinger
中科院分区:
文献类型:
--
作者:
Bachmann;Gamper;Krutzlinger
The welding temperature strongly affects the quality of friction stir welds. Thus, a novel approach for a closed-loop temperature control system was developed and is described in this paper. A model-based1 adaptive controller was implemented to control the welding temperature during friction stir welding (FSW). This control structure was selected due to its fast adaption to fluctuations in the behavior of the controlled system while guaranteeing robustness of the closed-loop system. A semi-analytical process model, which links the process torque and the welding temperature, was developed and included in the control structure. Thereby, the dynamics of the closed-loop system could be improved. The developed control strategy was compared to the state-of-the-art strategies. The results showed that the developed control structure provides the possibility to reduce the settling time of the closed-loop system while avoiding stability problems. Finally, the effectiveness of the controller was shown during FSW of aluminum to copper.
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DOI:
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期刊:
影响因子:
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影响因子:
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DOI:
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发表时间:
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期刊:
Procedia CIRP
影响因子:
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