改进的阻尼透射边界  

A MODIFIED VISCOUS TRANSMITTING BOUNDARY

作　　者：沈冯强[1] 

机构地区：[1]合肥工业大学建筑工程系

出　　处：《合肥工业大学学报（自然科学版）》1998年第6期18-21,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家教委留学回国人员科研启动基金

摘　　要：在计算结构动力学中，为了计入结构—地基的相互作用，必须在计算模型中引入透射边界。最方便而又常用的透射边界是简单阻尼边界。在此基础上文章提出了改进的阻尼透射边界。在一般动力反应计算中。In computational dynamics for structures,transmitting boundaries have to be introduced to take account of the dynamic interaction between structures and foundations.In this case,the standard viscous boundary conditions are simple and easy to be imposed on some artifitial truncated boundary.In order to be able to deal with the non plane wave behaviour near the transmitting boundary,the modified viscous boundary is proposed here with its deriviation and numerical examples.

关 键 词：结构动力学 结构-地基 相互作用 阻尼透射边界 

分 类 号：TU311.3[建筑科学—结构工程]