RESEARCH ON FAST RIGID PLASTICITY FINITE ELEMENT METHOD IN STRIP ROLLING

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	RESEARCH ON FAST RIGID PLASTICITY FINITE ELEMENT METHOD IN STRIP ROLLING
	C. S. Li ; R. B. Mei ; G. L. Zhang ; S. N. Song ; X. H. Liu
刊名	Steel Research International
	2008
页码	417-423
关键词	finite element method strip rolling algorithm domain decomposition
ISSN号	1611-3683
中文摘要	As one of numerical simulation method, rigid plasticity finite element method (RPFEM) had been widely applied in rolling. In the analysis of strip rolling process RPFEM had advantage of less calculating time and good convergence. Based on the RPFEM a fast RPFEM for strip steel rolling process was developed in the paper. To speed up the velocity of calculation, solution of initial velocity field was analyzed including engineering method, G function method, multi-layer perception neural network with back propagation algorithm and refined element method, convergence and calculating time were compared and discussed. Effects of numbers of element, mesh and decreased freedom element on calculation time and precision was analyzed. Arithmetic of optimization was analyzed, including Newton-Raphson method, trust region method, Brunt method, improved mid-point integral Newton method and Cholesky forced positive method. In strip rolling the on-line set up value of rolling force can be obtained by fast RPFEM. It has high precision and more useful parameters.
原文出处	://WOS:000267944600058
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/32860]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	C. S. Li,R. B. Mei,G. L. Zhang,et al. RESEARCH ON FAST RIGID PLASTICITY FINITE ELEMENT METHOD IN STRIP ROLLING[J]. Steel Research International,2008:417-423.
APA	C. S. Li,R. B. Mei,G. L. Zhang,S. N. Song,&X. H. Liu.(2008).RESEARCH ON FAST RIGID PLASTICITY FINITE ELEMENT METHOD IN STRIP ROLLING.Steel Research International,417-423.
MLA	C. S. Li,et al."RESEARCH ON FAST RIGID PLASTICITY FINITE ELEMENT METHOD IN STRIP ROLLING".Steel Research International (2008):417-423.