VISCOELASTIC FORMULATIONS OF BEM IN TIME AND FREQUENCY-DOMAIN

被引：10

作者：

GAUL, L

SCHANZ, M

FIEDLER, C

机构：

[1] Institute of Mechanics, University of the Federal Armed Forces, Hamburg

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 1992年 / 10卷 / 02期

关键词：

D O I：

10.1016/0955-7997(92)90043-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Formulations of the boundary element method (BEM) currently include conventional viscoelastic constitutive equations in the frequency domain. The aim of the present paper is to implement viscoelastic behaviour in a time domain approach as well. The elastic Stokes fundamental solution is converted to a viscoelastic one by adopting a correspondence principle. A novel viscoelastic fundamental solution is obtained analytically by inverse Laplace transformation. A frequency domain BE approach is generalized by taking viscoelastic constitutive equations with fractional order time derivatives into account. It is shown that the boundary matrix epsilion(ij) for non smooth boundaries in a dynamic formulation equals the elastostatic matrix. The transfer behaviour of a mounting system has been calculated by adopting the developed BE formulation to a viscoelastic resilient support mount.

引用

页码：137 / 141

页数：5