摘要
采用在低网格下修改点的坐标的方法获得优化的有限元网格，然后加密网格，直到满足误差估计条件为止。整个优化过程及网格加密过程实现了全自动自适应模式。
The adaptive finite element method for analysis of free vibration of a beam is presented in this paper.The method is used to give the optimum finite element grids by adjusting nodal position from the rough grids.Then the number of the finite element grids is increased until the result meets the requirements of the given error.The total access has realized the model of the self adaption.
关键词
固有振动
有限元
自适应
free vibration
finite element grids
self adaption
