Mixed logical dynamical model for back bead width prediction of pulsed GTAW process with misalignment
Mixed logical dynamical model for back bead width prediction of pulsed GTAW process with misalignment
复制标题
用于预测未对准的脉冲 GTAW 工艺后焊道宽度的混合逻辑动态模型
DOI:
10.1016/j.jmatprotec.2010.07.022
复制
发表时间:
2010-11
影响因子:
6.3
通讯作者:
Chen, Shanben
中科院分区:
文献类型:
--
作者:
Ma, Hongbo;Wei, Shanchun;Lin, Tao;Chen, Shanben
The purpose of this paper is to propose a kind of mixed logical dynamical (MLD) model to predict the back bead width of pulsed GTAW process with misalignment. Misalignment is considered as discrete input and the nonlinear welding process is approximated using piecewise linear models. A MLD model is then established and gives a good prediction quality of the back bead width of pulsed GTAW process with misalignment. The stability and reliability of the MLD model are tested by a closed loop control experiment. This study shows that the MLD framework is a good modeling method for pulsed GTAW process. Thus, a solid foundation for penetration control of welding process is established based on the MLD model.
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DOI:
10.1115/1.2802392
发表时间:
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