Finite_Elements_Chapter_4.pdf
1、有限元法应该是在差分法基础上建立起来的。有限元法:对物理模型进行离散,网格划分不用规则,就是各种单元可以混合使用,所以写不出方程也可以求解。 2、差分法:划分的网格是规则的,对方程进行离散化,就是用很多个差分代替微分,用线性方程组代替微分方程的一种方法。学地质应该不用太区了解 基本原理,要注重分析的过程,和看懂分析结果才重要,地质毕竟也是实际的工程领域
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