Numerical simulation and control of welding distortion for double floor structure of high speed train

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	Numerical simulation and control of welding distortion for double floor structure of high speed train
	W. C.; Lu Dong, S. P.; Lu, H.; Li, D. Z.; Rong, L. J.; Li, Y. Y.
	2014
发表期刊	Acta Mechanica Sinica
ISSN	0567-7718
卷号	30 期号:6 页码:849-859
摘要	The welding heat source models and the plastic tension zone sizes of a typical weld joint involved in the double floor structure of high speed train under different welding parameters were calculated by a thermal-elastic-plastic FEM analysis based on SYSWELD code. Then, the welding distortion of floor structure was predicted using a linear elastic FEM and shrinkage method based on Weld Planner software. The effects of welding sequence, clamping configuration and reverse deformation on welding distortion of floor structure were examined numerically. The results indicate that the established elastic FEM model for floor structure is reliable for predicting the distribution of welding distortion in view of the good agreement between the calculated results and the measured distortion for real double floor structure. Compared with the welding sequence, the clamping configuration and the reverse deformation have a significant influence on the welding distortion of floor structure. In the case of 30 mm reverse deformation, the maximum deformation can be reduced about 70% in comparison to an actual welding process.
部门归属	[dong, wen-chao ; lu, shan-ping ; li, dian-zhong ; rong, li-jian ; li, yi-yi] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [lu, hao] csr qingdao sifang co ltd, qingdao 266111, peoples r china. ; lu, sp (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; shplu@imr.ac.cn
关键词	Welding Distortion Double Floor Welded Structure High Speed Train Numerical Simulation Finite-element Approach Prediction Fem
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73788
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C.,Lu Dong, S. P.,Lu, H.,et al. Numerical simulation and control of welding distortion for double floor structure of high speed train[J]. Acta Mechanica Sinica,2014,30(6):849-859.
APA	W. C.,Lu Dong, S. P.,Lu, H.,Li, D. Z.,Rong, L. J.,&Li, Y. Y..(2014).Numerical simulation and control of welding distortion for double floor structure of high speed train.Acta Mechanica Sinica,30(6),849-859.
MLA	W. C.,et al."Numerical simulation and control of welding distortion for double floor structure of high speed train".Acta Mechanica Sinica 30.6(2014):849-859.