An extension of complex modes for the resolution of finite-element poroelastic problems

被引：29

作者：

Dazel, O

Sgard, F

Lamarque, CH

Atalla, N

机构：

[1] Ecole Natl Travaux Publ Etat, Lab Sci Habitat, DGCB, URA CNRS 1652, F-69518 Vaulx En Velin, France

[2] Ecole Natl Travaux Publ Etat, URA CNRS 1652, DGCB, Lab Geomat, F-69518 Vaulx En Velin, France

[3] Univ Sherbrooke, GAUS, Sherbrooke, PQ, Canada

来源：

JOURNAL OF SOUND AND VIBRATION | 2002年 / 253卷 / 02期

关键词：

D O I：

10.1006/jsvi.2001.4062

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A new modal synthesis technique inspired from complex modes is presented in this paper. The purpose of this method is to find an alternative to the weakness of usual modal techniques in order to improve resolution of finite-element poroelastic problems. Firstly, the construction of modes and the synthesis for a general forcing is explained. Secondly, the approach is applied to a one-dimensional poroelastic problem. Finally, the approach is numerically tested and its performance is investigated by comparison with solutions obtained with a direct resolution of the system. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：421 / 445

页数：25

共 30 条

[1]

Allard J.F., 1993, Propagation of sound in porous media, DOI [10.1002/9780470747339, DOI 10.1002/9780470747339]

[2] A mixed displacement-pressure formulation for poroelastic materials [J].