| 机器人小车焊接构架变形预测和分析 |
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| 引用本文： | 张金玉,门志辉,刘靖楠,李娅娜.机器人小车焊接构架变形预测和分析[J].计算机辅助工程,2020,29(3):47-50. |
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| 作者姓名： | 张金玉 门志辉 刘靖楠 李娅娜 |
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| 作者单位： | 大连交通大学机车车辆工程学院,辽宁大连116028;大连交通大学机车车辆工程学院,辽宁大连116028;大连交通大学机车车辆工程学院,辽宁大连116028;大连交通大学机车车辆工程学院,辽宁大连116028 |
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| 基金项目： | 国家重点研发计划资助（2017YFB1201302－11）；辽宁省高等学校轨道交通装备技术研究院重大项目资助 |
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| 摘 要： | 为探究焊接变形对机器人小车碰撞性能和使用寿命的影响，基于热弹塑性固有应变法，利用仿真软件VIRFAC对机器人小车焊接构架变形进行数值模拟。通过热源校核，模拟4种典型接头的热源分布，建立固有应变数据库，分析具有282条焊缝的机器人小车整体变形规律。结果表明：机器人小车焊接构架的最大变形为2.962 mm，位于顶层边框位置。研究结果为机器人小车的焊接设计、强度和稳定性分析提供支持。
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| 关 键 词： | 焊接 构架 热弹塑性 固有应变 热源校核 变形 |
| 收稿时间： | 2020/3/11 0:00:00 |
| 修稿时间： | 2020/4/16 0:00:00 |
Deformation prediction and analysis of
welding frame of robot vehicle |
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| ZHANG Jinyu,MEN Zhihui,LIU Jingnan and LI Yana.Deformation prediction and analysis of
welding frame of robot vehicle[J].Computer Aided Engineering,2020,29(3):47-50. |
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| Authors: | ZHANG Jinyu MEN Zhihui LIU Jingnan and LI Yana |
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| Affiliation: | College of Rolling Stock Engineering, Dalian Jiaotong University,College of Rolling Stock Engineering, Dalian Jiaotong University,College of Rolling Stock Engineering, Dalian Jiaotong University and College of Rolling Stock Engineering, Dalian Jiaotong University |
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| Abstract: | To study the influence of welding deformation on the collision performance and the service life of the robot vehicle, based on the thermo elasto plasticity inherent strain method, the deformation of the robot vehicle welding frame is simulated in software VIRFAC. By checking with heat source, the heat source distributions of four typical joints are simulated, the inherent strain database is established, and the overall deformation rule of the robot vehicle with 282 welding seams is analyzed. The results show that the maximum deformation of the welding frame of the robot vehicle is 2.962 mm, which is located at the top of the frame. The research results can support the welding design, strength and stability analysis of the robot vehicle. |
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| Keywords: | welding frame thermo elasto plasticity inherent strain heat source checking deformation |
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