黏弹性边界条件在ANSYS有限元波场模拟中的实现

英文篇名：REALIZATION OF VISCOELASTIC BOUNDARY CONDITION IN WAVE FIELD SIMULATION WITH ANSYS FINITE ELEMENT SOFTWARE
中文刊名：大地测量与地球动力学
英文刊名：Journal of Geodesy and Geodynamics
作者：王朝令 ; 刘争平
英文作者：Wang Chaoling and Liu Zhengping (The Southwest Comunication University ; Chengdu 610031)
中文关键词：黏弹性边界 ; 弹性波场 ; 有限元 ; ANSYS ; 地震波
英文关键词：viscoelastic boundary ; elastic wave field ; FEM ; ANSYS ; seismic wave
出版日期：2012-04-15
机构：西南交通大学;
年：2012
期：02
出版单位：大地测量与地球动力学

摘要

在ANSYS软件中应用黏弹性边界单元,用Combin14单元完成了黏弹性边界的施加。算例表明其可以很好地吸收边界反射波,且当切向刚度参数不变,法向刚度参数变化时,吸收效果不受影响,反之亦然,验证了其有效性和稳定性。
We present a method to realize viscoelastic boundary condition in ANSYS finite element software by using the Combin 14 element.The numerical results show that the method can well absorb the boundary reflection wave,and is insensitive to change of boundary normal stiffness parameters while the tangential stiffness parameters keep constant,and vice versa.The results also verify the effectiveness and stability of the method.

引文

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