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

作　　者：Qiang XU Jianyun CHEN Jing LI Mingming WANG 

机构地区：[1]School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116023,China

出　　处：《Frontiers of Structural and Civil Engineering》2012年第3期281-287,共7页结构与土木工程前沿（英文版）

基　　金：This study was supported by Project supported by the National Natural Science Foundation of China(Grant Nos.51109029,51178081,51138001,51009020);the China Postdoctoral Science Foundation(Grant No.20110491535).

摘　　要：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.

关 键 词：damping-solvent extraction method structure-unlimited-foundation system spring-damper system artificial damping limited region finite element method 

分 类 号：O17[理学—数学]