Stationary random waves propagation in 3D viscoelastic stratified solid

TU352; Propagation of stationary random waves in viscoelastic stratified transverse isotropic materials is investigated. The solid was considered multi-layered and located above the bedrock, which was assumed to be much stiffer than the soil, and the power spectrum density of the stationary random e...

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Bibliographic Details
Published in:Applied mathematics and mechanics Vol. 26; no. 6; pp. 785 - 796
Main Authors: Qiang, Gao, Jia-hao, Lin
Format: Journal Article
Language:English
Published: State Key Laboratory of Structural Analysis forIndustrial Equipment,Dalian University of Technology,, Dalian 116023, P. R. China 01.06.2005
Subjects:
random vibration
wave propagation
layered material
pseudo-excitation method
precise integration
ISSN:0253-4827, 1573-2754
Online Access:Get full text
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Summary:TU352; Propagation of stationary random waves in viscoelastic stratified transverse isotropic materials is investigated. The solid was considered multi-layered and located above the bedrock, which was assumed to be much stiffer than the soil, and the power spectrum density of the stationary random excitation was given at the bedrock. The governing differential equations are derived in frequency and wave-number domains and only a set of ordinary differential equations (ODEs) must be solved. The precise integration algorithm of two-point boundary value pro blem was applied to solve the ODEs. Thereafter, the recently developed pseudo-excitation method for structural random vibration is extended to the solution of the stratified solid responses.
ISSN:0253-4827
1573-2754
DOI:10.1007/BF02465430