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LIU Tian-yun, LIU Guang-ting, LIU Ying-li. A FEM MODEL FOR INFINITE MEDIA WAVE PROBLEMS[J]. Engineering Mechanics, 2002, 19(2): 22-25.
Citation: LIU Tian-yun, LIU Guang-ting, LIU Ying-li. A FEM MODEL FOR INFINITE MEDIA WAVE PROBLEMS[J]. Engineering Mechanics, 2002, 19(2): 22-25.
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A FEM MODEL FOR INFINITE MEDIA WAVE PROBLEMS

  • Department of Hydraulic Engineering, Tsinghua University, Beijing 100084

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  • Received Date: July 26, 2000
  • Revised Date: June 28, 2001
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    • Abstract
  • This paper presents a new artificial boundary element formula for unbounded media wave problems, which is derived from semi-analytical one-side wave equation. The numerical stability may be controlled for both the inner and boundary points. A reasonable spurious parameter of artificial boundary is also proposed, which lays down the base for FEM numerical simulation. The SH numerical example shows that this new artificial boundary element has a multi-directional transmitting property.
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