Study of an artificial boundary condition based on the damping-solvent extraction method

Abstract

A new artificial boundary condition for time domain analysis of a structure-unlimited-foundation system was proposed. The boundary condition was based on the damping-solvent extraction method. The principle of the damping-solvent extraction method was described. An artificial boundary condition was then established by setting two spring-damper systems and one artificial damping limited region. A test example was developed to verify that the proposed boundary condition and model had high precision. Compared with the damping-solvent extraction method, this boundary condition is easier to be applied to finite element method (FEM)-based numerical calculations.

Keywords

damping-solvent extraction method / structure-unlimited-foundation system / spring-damper system / artificial damping limited region / finite element method

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Higher Education Press and Springer-Verlag Berlin Heidelberg