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| 基于遗传算法的箱型结构焊接顺序优化 | |
| 引用本文： | 崔晓芳,马君,赵海燕,兆文忠,孟凯.基于遗传算法的箱型结构焊接顺序优化[J].焊接学报,2006,27(8):5-8. |
| 作者姓名： | 崔晓芳 马君 赵海燕 兆文忠 孟凯 |
| 作者单位： | 1. 清华大学,机械工程系,北京,100084;中国北车集团,大同电力机车有限责任公司,山西,大同,037038 2. 中国北车集团,大同电力机车有限责任公司,山西,大同,037038 3. 清华大学,机械工程系,北京,100084 4. 大连交通大学,机械工程学院,辽宁,大连,116028 |
| 摘 要： | 基于遗传算法原理,建立了箱型结构热-机耦合非线性三维优化仿真模型,以焊接变形为目标函数,进行了焊接顺序数值仿真优化.通过仿真计算优化结果与试验数据比较,证明所提出的优化方法与热-机模型结合是可行的,对于给定的焊接条件,通过选择合适的目标函数,采用遗传算法可以确定最优焊接顺序.这为针对工程具体问题设计焊接工艺提供了可靠的依据. |
| 关 键 词： | 箱型结构 焊接变形 热-机耦合 焊接顺序优化 遗传算法 |
| 文章编号： | 0253-360X（2006）08-005-04 |
| 收稿时间： | 07 25 2005 12:00AM |
| 修稿时间： | 2005年7月25日 |
Optimization of welding sequences of box-like structure based on a genetic algorithm method |
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| CUI Xiaofang,MA Jun,ZHAO Haiyan,ZHAO Wenzhong and MENG Kai.Optimization of welding sequences of box-like structure based on a genetic algorithm method[J].Transactions of The China Welding Institution,2006,27(8):5-8. | |
| Authors: | CUI Xiaofang MA Jun ZHAO Haiyan ZHAO Wenzhong and MENG Kai |
| Affiliation: | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;CNR Datong Electric Locomotive Co. LTD, Datong 037038, China,CNR Datong Electric Locomotive Co. LTD, Datong 037038, China,Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China,College of Mechanical Engineering, Dalian JiaoTong University, Dalian 116028, China and CNR Datong Electric Locomotive Co. LTD, Datong 037038, China |
| Abstract: | The genetic algorithm method was proposed.The box structure's nonlinear three-dimension optimization simulation model was eslablished based on thermo-mechanical coupling algorithm, and the objective function of welding distortion has been utilized to determine an optimal welding sequence by optimization of simulation. This genetic algorithm method combining with thermo-mechanical nonlinear finite element model was verified by comparison with available experimental data . By choosing the appropriate objective function for the considered case, an optimum welding sequence was determined by the genetic algorithm.This study indicates that presented new method has important practical application for designing the welding technical parameters. |
| Keywords: | box-like structure welding distortion thermo-mechanical coupling welding sequence optimization genetic algorithm |
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