基于ALE方法的渡槽流固耦合数值模拟

英文篇名：The Numerical Simulation of Fluid-Solid Interaction for an Aqueduct on ALE
中文刊名：人民黄河
英文刊名：Yellow River
作者：张凤 ; 曾彦 ; 张静
英文作者：ZHANG Feng1 ; ZENG yan2 ; ZHANG Jing3(1.North China University of Water Resources and Electric Power ; School of Water Conservancy ; Zhengzhou 450011 ; China ; 2.North China University of Water Resources and Electric Power ; School of Civil Engineering and Communication ; Zhengzhou 450011 ; China ; 3.Beijing Jiaotong University ; School of Civil Engineering and Architecture ; Beijing 100044 ; China)
中文关键词：动力响应 ; 渡槽 ; 流固耦合 ; ALE理论 ; 显式动力分析
英文关键词：dynamic response ; aqueduct ; fluid-solid interaction(FSI) ; ALE theory ; explicit dynamic analysis
出版日期：2012-04-10
机构：华北水利水电学院水利学院;华北水利水电学院土木与交通学院;北京交通大学土木建筑工程学院;
年：2012
期：04
出版单位：人民黄河

摘要

地震作用下渡槽动力响应研究是渡槽抗震设计的关键环节。基于ALE理论,选用显式动力分析软件LS-DYNA,研究了地震作用下水体晃动产生的动水压力对渡槽槽身位移和应力的影响。结果表明:槽体结构的横向位移及应力随渡槽槽内水深的增加而增大;在横向地震波的激励下,槽身上部横向位移大于下部;在水体的晃动效应下,槽身底部应力较大。
The dynamic response under seism is a key step for earthquake-resistance design of aqueduct.Based on the ALE theory,with the LS-DYNA explicit dynamic analysis software,the transverse displacement and stress caused by the water shaking under earthquake were studied.The results show that,the transverse displacement and stress increase with depth of water increasing,the upper transverse displacements are bigger than the under displacements of aqueduct by motivation of the transverse earthquake wave and the bottom stresses of aqueduct are major with the water shaking.

引文

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