V2EX finite element method

Finite Element Method

释义 Definition

有限元方法(常缩写为 FEM):一种把连续体(如结构、热场、流体等)划分为许多小的“单元”(elements),在单元上用近似函数表示未知量,并通过组装形成整体方程来数值求解工程与物理问题(尤其是偏微分方程)的方法。也常指“有限元分析”(FEA)所用的核心计算方法。

发音 Pronunciation (IPA)

/fanat lmnt mθd/

词源 Etymology

该短语由三部分构成:finite 源自拉丁语 finitus(“有限的、有界的”),强调把连续域分割成有限个部分;element 源自拉丁语 elementum(“基本成分/要素”),在这里指“单元”;method 源自希腊语 methodos(“追随某条路径、方法”)。合起来即“用有限个单元进行求解的方法”。

例句 Examples

We used the finite element method to model the bridge.
我们用有限元方法来建立这座桥的模型。

Using the finite element method, the team solved a heat-transfer equation on an adaptive mesh to improve accuracy near the boundary.
团队使用有限元方法,在自适应网格上求解传热方程,以提高边界附近的计算精度。

相关词 Related Words

文学与著作 Literary Works

  • The Finite Element Method O. C. Zienkiewicz & R. L. Taylor
  • The Finite Element Method: Linear Static and Dynamic Finite Element Analysis Thomas J. R. Hughes
  • Finite Element Procedures Klaus-Jürgen Bathe
  • An Analysis of the Finite Element Method Gilbert Strang & George Fix
  • An Introduction to the Finite Element Method J. N. Reddy
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