基于ABAQUS的粘弹性动力人工边界精确自动施加

英文篇名：Accurate Auto-application of Viscoelastic Dynamic Artificial Boundary Based on ABAQUS
中文刊名：三峡大学学报(自然科学版)
英文刊名：Journal of China Three Gorges University(Natural Sciences)
作者：徐磊 ; 叶志才 ; 任青文 ; 杜小凯
英文作者：Xu Lei1 Ye Zhicai2 ; 3 Ren Qingwen2 Du Xiaokai4(1.College of Water Conservancy & Hydropower Engineering ; Hohai Univ. ; Nanjing 210098 ; China ; 2.College of Civil Engineering ; Hohai Univ. ; Nanjing 210098 ; China ; 3.Suqian Water Authority ; Suqian 223800 ; China ; 4.China Hydropower Engineering Consulting Corporation ; Beijing 100120 ; China)
中文关键词：粘弹性动力人工边界 ; ABAQUS ; 自动施加
英文关键词：viscoelastic artificial boundary ; ABAQUS ; auto-application
出版日期：2010-02-15
机构：河海大学水利水电工程学院;河海大学土木工程学院;宿迁市水务局;中国水电工程顾问集团公司;
年：2010
期：01
出版单位：三峡大学学报(自然科学版)

摘要

粘弹性动力人工边界在结构-地基动力相互作用问题的有限元分析中已得到了广泛的应用,但对于规模较大的复杂计算模型而言,粘弹性动力人工边界的施加存在着前处理工作量浩繁、施加精度不高等问题.为此,基于粘弹性动力人工边界理论及ABAQUS软件平台,提出了粘弹性动力人工边界精确自动施加方法,编制了相关程序并进行了验证.算例将本文方法和通常的近似施加方法进行了对比分析,结果表明,近似施加方法会引起较大计算误差,本文所提出方法的施加简便性、施加精度均优于通常的近似施加方法.
The viscoelastic dynamic artificial boundary is widely applied in the dynamic analysis of structure-soil interaction;but the work of preprocessing is time-consuming and lack of precision for the complex numerical simulation.In this paper,the method of accurate auto-application of viscoelastic dynamic artificial boundary is presented based on the theory of viscoelastic dynamic artificial boundary and FEM software ABAQUS;and the corresponding program is developed and verified.The comparative analysis of the method mentioned above and the approximate method usually used is completed through a numerical example.The results show that the approximate method usually used may arise obvious calculation error;and the method of accurate auto-application of viscoelastic dynamic artificial boundary is convenient for application and has a higher precision.

引文

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