Stability analysis and evaluation of staggered coupled analysis methods for electromagnetic and structural coupled finite element analysis

被引：10
|
作者：
Niho, Tomoya [1 ]
Horie, Tomoyoshi [1 ]
Uefuji, Junpei [1 ]
Ishihara, Daisuke [1 ]
机构：
[1] Kyushu Inst Technol, Dept Mech Informat Sci & Technol, 680-4 Kawazu, Iizuka, Fukuoka 8208502, Japan
来源：
COMPUTERS & STRUCTURES | 2017年 / 178卷
关键词：
Numerical instability; Coupled finite element analysis; Stability analysis; Coupled algorithm; Time integration method; Electromagnetic and structural coupled; problem; FLUID-STRUCTURE INTERACTION; PARTITIONED PROCEDURES; AEROELASTIC PROBLEMS; TRANSIENT SOLUTION; ALGORITHMS; ACCURACY; PLATE;
D O I：
10.1016/j.compstruc.2016.09.003
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The numerical stability of electromagnetic and structural coupled analysis methods is examined in terms of the spectral radius for various methods combined with a coupled algorithm, time integration methods for structural analysis and eddy current analysis, and coupled effect evaluation methods. The coupled analysis method with the conventional serial staggered algorithm, generalized-alpha method for structure, backward difference method for eddy current, and coupled effect evaluation using previous time step results is seen to be the most suitable from the viewpoints of stability and computing time. The stability of the conventional parallel staggered algorithm is found to be much improved if the generalized-alpha method is used for structural analysis. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：129 / 142
页数：14
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