基于层次分析过程的厚板T形接头弧焊焊接位置自主决策  

Autonomous decision⁃making of welding positions based on analytic hierarchy process in T⁃joint arc welding

作　　者：何银水[1] 肖贺 罗沧海 张宇[1] 余卓骅 袁海涛 HE Yin-shui;XIAO He;LUO Cang-hai;ZHANG Yu;YU Zhuo-hua;YUAN Hai-tao(School of Resources&Environment,Nanchang University,Nanchang 330031,China;School of Intelligent Manufacturing,Nanchang Jiao Tong Institute,Nanchang 330100,China;School of Advanced Manufacturing,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学资源与环境学院,南昌330031 [2]南昌交通学院智能制造学院,南昌330100 [3]南昌大学先进制造学院,南昌330031

出　　处：《吉林大学学报（工学版）》2024年第3期657-662,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(62066029).

摘　　要：提出了一种基于层次分析过程的T形接头多道平角焊焊接位置自主决策方法。首先,利用视觉传感检测坡口的特征点,并将其他特征点与最右侧特征点之间在水平、垂直方向的相对距离作为因素,建立了层次分析模型。其次,基于平角焊腹板角变形控制经验设计了一种比较矩阵元素计算方法。最后,基于最大后验权重原则建立了焊接位置自主选定方法。不同板厚的多道填充焊焊接位置自主决策试验显示,本文方法在满足接头角变形控制的前提下,决策的正确率达到90%以上,抗干扰能力强。The analytic hierarchy process(AHP)was presented to realize decision-making of welding positions during the horizontal multipass welding process with T-joints.First,the feature points of the groove were detected with visual sensing technology,and the distances between other feature points and the rightmost one respectively in the X/Y direction were used as factors to build the AHP model.Second,a computational method that integrated welding experience related to angular distortion control was proposed to automatically determine the elements in the comparison matrixes.Finally,the decision-making result of welding positions was conducted using the maximum posteriori weight principle.The experimental results on multiple decision-making processes with the webs of different thicknesses showed that the proposed method owns strong anti-interference ability and the accuracy is over 90%.

关 键 词：T形接头 层次分析过程 焊接位置决策 角变形控制 视觉传感 

分 类 号：TG409[金属学及工艺—焊接]