钻探工程2024，Vol.51Issue(2)：68-77,10.DOI:10.12143/j.ztgc.2024.02.010
大型钻探设备支承底盘焊接工艺优化研究
Research on optimization of welding process for support chassis of large drilling equipment
摘要
Abstract
The support chassis of large drilling equipment,serving as the support platform,is commonly assembled by welding numerous steel plates together.The residual stresses and deformations caused by welding have a certain impact on the strength and stiffness of the chassis.In this study,the finite element analysis method is applied.A finite element model is established for a representative T-type welded joint in the large support chassis,using a Gaussian moving heat source.Four different welding sequences and welding speeds are adopted to analyze their effects on welding stresses and deformations.Optimized welding sequences and welding speeds are obtained.Based on this,an overall welding scheme for the chassis is optimized.A comparative analysis is conducted on the welding stresses and deformations before and after optimization.The results show that the residual stress is reduced by approximately 7% and the maximum deformation is reduced by approximately 26% after optimization.The research results can provide reference for the formulation of welding processes.关键词
大型钻探设备/大型支承底盘/有限元分析/焊接工艺/焊接残余应力/焊接残余变形Key words
large drilling equipment/large support chassis/finite element analysis/welding process/residual welding stress/residual welding deformation分类
地质学引用本文复制引用
康红梅,王继园,黎杰,李昌平,殷国乐..大型钻探设备支承底盘焊接工艺优化研究[J].钻探工程,2024,51(2):68-77,10.基金项目
2023教育部产学合作协同育人项目"面向智能制造的机械类专业师资培训"(编号:231000405032415) （编号:231000405032415）
湖北楚大智能装备有限公司"日用玻璃智能装备关键技术开发"(编号:2021076887) （编号:2021076887）
