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contributor authorYichao Gao; Feng Jin; Yanjie Xu
date accessioned2019-03-10T12:05:26Z
date available2019-03-10T12:05:26Z
date issued2019
identifier other%28ASCE%29EM.1943-7889.0001553.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4254835
description abstractA high-order doubly asymptotic open boundary (DAOB) for the modeling of a semi-infinite reservoir with constant cross section is developed, in which the compressibility of water and the absorption characteristic of a reservoir bottom are considered. The dynamic stiffness matrix is approximated by a doubly asymptotic continued fraction solution with an additional factor matrix to improve its numerical robustness. The continued fraction solution converges throughout the entire frequency range quickly as the increasing orders of approximation and is verified by a rigid dam example. Introducing the auxiliary variables, a temporally local high-order DAOB is formulated. Coupling the high-order DAOB with the finite-element method (FEM) straightforwardly, an efficient procedure for the transient analysis of dam–reservoir interaction is developed and implemented in an open-source finite-element software OpenSees. Gravity dam and arch dam examples subject to dynamic loading conditions including the dam–reservoir interaction are analyzed. It is demonstrated that this proposed procedure is of high accuracy and computational efficiency.
publisherAmerican Society of Civil Engineers
titleTransient Analysis of Dam–Reservoir Interaction Using a High-Order Doubly Asymptotic Open Boundary
typeJournal Paper
journal volume145
journal issue1
journal titleJournal of Engineering Mechanics
identifier doi10.1061/(ASCE)EM.1943-7889.0001553
page04018119
treeJournal of Engineering Mechanics:;2019:;Volume ( 145 ):;issue: 001
contenttypeFulltext


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