无穷小的有限单元法
首发时间:2008-09-11
摘要:本文提出一种用均匀设计的有限单元法,旨在为有限元划分网格和结果精度提供一种借鉴。网格划分的部件可以是体、面或线,当部件变成点时可以认为是无穷小了。本文从均匀设计的理论出发借助MATLAB强大的程序模拟,可以得出网格疏密的划分重点即应力变化梯度大的点,加密梯度变化大的点当然精度更高。比较运行的结果证明了均匀设计方法的可行性。
关键词: 均匀设计法 自适应有限元 网格划分密度 结构优化设计 应力梯度变化
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Infinitesimal finite element method
Abstract:This paper provides an idea of meshing with the ANSYS. Many people depend on the individual experience in the division of grids using the finite element method , however, the number of the grids is hard to settle , or has been knew that the number but suffers from the computer software to get the ideal accuracy. The auto-adapted method of dividing grids is one effective method. This paper uses uniform design\\\\\\\\\\\\\\\
Keywords: Uniform design Matlab Finite element method gradient variation Ansys;structure optimum design model foundation
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No.2395223813112211****
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