变间隙MAG焊熔透状态的粗糙-模糊控制方法
TG402; 正面熔池与熔透状态之间存在一定的对应关系.然而与熔透状态潜在相关的熔池特征众多,如何去除冗余特征,建立一个反映熔池特征与熔透状态对应关系的简洁的知识模型,对实现焊接熔透在线控制具有重要意义.提出一种焊接熔透状态的粗糙-模糊控制方法,并在变间隙MAG焊接实验中进行验证.给出 2种基于变精度粗糙集的属性约简算法,以求解表征熔透状态的熔池最小特征集.通过变间隙-电流焊接试验建立熔透状态决策信息系统,引入 2个用以描述熔池尾部尖削程度的形状参数,基于粗糙集知识约简和规则提取算法获取熔透状态分类规则.构建熔池尾宽系数的模糊控制模型,利用最小化模糊熵来构造误差论域上的隶属函数.通过 2组变间...
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| Published in | 焊接学报 Vol. 44; no. 11; pp. 22 - 35 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
北部湾大学,钦州, 535011%上海船舶工艺研究所,上海, 200032
01.11.2023
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-360X |
| DOI | 10.12073/j.hjxb.20230407003 |
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| Abstract | TG402; 正面熔池与熔透状态之间存在一定的对应关系.然而与熔透状态潜在相关的熔池特征众多,如何去除冗余特征,建立一个反映熔池特征与熔透状态对应关系的简洁的知识模型,对实现焊接熔透在线控制具有重要意义.提出一种焊接熔透状态的粗糙-模糊控制方法,并在变间隙MAG焊接实验中进行验证.给出 2种基于变精度粗糙集的属性约简算法,以求解表征熔透状态的熔池最小特征集.通过变间隙-电流焊接试验建立熔透状态决策信息系统,引入 2个用以描述熔池尾部尖削程度的形状参数,基于粗糙集知识约简和规则提取算法获取熔透状态分类规则.构建熔池尾宽系数的模糊控制模型,利用最小化模糊熵来构造误差论域上的隶属函数.通过 2组变间隙焊接实验对该控制模型进行验证,结果表明,闭环控制下焊缝背面熔宽均匀一致,符合焊接规范要求. |
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| AbstractList | TG402; 正面熔池与熔透状态之间存在一定的对应关系.然而与熔透状态潜在相关的熔池特征众多,如何去除冗余特征,建立一个反映熔池特征与熔透状态对应关系的简洁的知识模型,对实现焊接熔透在线控制具有重要意义.提出一种焊接熔透状态的粗糙-模糊控制方法,并在变间隙MAG焊接实验中进行验证.给出 2种基于变精度粗糙集的属性约简算法,以求解表征熔透状态的熔池最小特征集.通过变间隙-电流焊接试验建立熔透状态决策信息系统,引入 2个用以描述熔池尾部尖削程度的形状参数,基于粗糙集知识约简和规则提取算法获取熔透状态分类规则.构建熔池尾宽系数的模糊控制模型,利用最小化模糊熵来构造误差论域上的隶属函数.通过 2组变间隙焊接实验对该控制模型进行验证,结果表明,闭环控制下焊缝背面熔宽均匀一致,符合焊接规范要求. |
| Author | 向晓宏 黎欣 袁浩 黎泉 曾宪平 冯志强 刘鹏 |
| AuthorAffiliation | 北部湾大学,钦州, 535011%上海船舶工艺研究所,上海, 200032 |
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| Keywords | 坡口间隙 熔池特征 熔透状态 MAG焊 粗糙集 模糊控制 |
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| Snippet | TG402; 正面熔池与熔透状态之间存在一定的对应关系.然而与熔透状态潜在相关的熔池特征众多,如何去除冗余特征,建立一个反映熔池特征与熔透状态对应关系的简洁的知识模型,对... |
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| Title | 变间隙MAG焊熔透状态的粗糙-模糊控制方法 |
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