…The finite element method requires a large computer to perform calculations, and once the program that specifies the calculation procedure is completed, it is a versatile numerical analysis method that can be used regardless of the shape or boundary conditions of the object. As mentioned above, the finite element method also divides the internal region of the object into elements, but recently, the boundary element method, which divides only the boundary of the object into elements and performs numerical analysis, has been developed and is showing rapid development. In addition, a theoretical system of weighted residuals that can unify numerical analysis methods such as the finite element method and the boundary element method has been established, and it is expected that in the future, any physical phenomenon or material transfer phenomenon described by differential equations will be able to be numerically analyzed under complex boundary conditions using the finite element method or the boundary element method, or by combining both. … *Some of the terminology used in reference to the "boundary element method" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この有限要素法の計算には,大型のコンピューターが必要となり,その計算手順を指示するプログラムがいったん完成すれば,物体の形状や境界条件によらず共通して使用できる汎用性に富んだ数値解析法である。前述のように有限要素法は物体の内部領域も要素に分割するが,最近物体の境界のみを要素に分割し数値解析する境界要素法boundary element methodも開発され,急速な発展を見せている。また有限要素法や境界要素法などの数値解析法を統一的に説明できる重み付き残差法method of weight residualsの理論体系もでき,今後は微分方程式で記述されるあらゆる物理現象あるいは物質移動現象が,複雑な境界条件の下で有限要素法あるいは境界要素法により,または両者の協力により数値解析できるようになるものと期待されている。… ※「境界要素法」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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