Proper orthogonal decomposition for substructures in nonlinear finite element analysis: coupling by means of tied contact
Proper orthogonal decomposition for substructures in nonlinear finite element analysis: coupling by means of tied contact
复制标题
非线性有限元分析中子结构的本征正交分解:通过束缚接触进行耦合
DOI:
10.1007/s00419-018-1427-1
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发表时间:
2001
影响因子:
2.8
通讯作者:
中科院分区:
文献类型:
--
作者:
The finite element analysis of complex structures involves a high computational effort, since the equation system to be solved includes a large number of degrees of freedom. This holds particularly in nonlinear finite element analysis. In order to reduce the numerical effort, the total system is subdivided into substructures which are analyzed separately from each other. The computing time can be further reduced, if the number of degrees of freedom of the substructures and thereby the dimension of the global equation system are decreased. In the present paper, this is achieved by projection-based model order reduction applied at the level of the substructures. The corresponding modes include internal and boundary nodes. The precomputation is carried out either directly with respect to the global system or only on one representative substructure. For the coupling, a new surface-to-surface tied contact formulation based on the penalty method is presented which couples the reduced and unreduced substructures. This is also possible for non-matching meshes. Several nonlinear numerical examples are performed which show the feasibility of the new approach.
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影响因子:
2.9
作者:
P. Nigro;M. Anndif;Y. Teixeira;P. Pimenta;P. Wriggers
通讯作者:
P. Wriggers
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
P. Benner;Lihong Feng
通讯作者:
Lihong Feng
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Jin‐Gyun Kim;D. Markovic
通讯作者:
D. Markovic
DOI:
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发表时间:
1985
期刊:
影响因子:
--
作者:
A. Shabana
通讯作者:
A. Shabana
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
D. Ryckelynck;D. M. Benziane;S. Cartel;J. Besson
通讯作者:
J. Besson