finite-difference approximationとは 意味・読み方・使い方

One free parameter ε is introduced when an advective term in a transport equation is subjected to third-order finite difference approximation.例文帳に追加

輸送方程式における移流項を3次精度の有限差分近似する際に、1つのフリーパラメータεを導入する。 - 特許庁

To provide an orthogonal difference lattice generating device which automatically generates a finite difference lattice used for a finite difference method based on preliminarily given ground data, also introduces an approximation method for a shape obtained by using the space occupancy rate for each calculation lattice and improves the degree of approximation for the shape and to provide its generating method and a storage medium in which an orthogonal difference lattice generating program is stored.例文帳に追加

予め与えられた地上データに基づいて有限差分法に用いる有限差分格子を自動的に生成すると共に、各計算格子ごとの空間占有率を用いた形状の近似手法を導入して、形状の近似度を向上させた直交差分格子生成装置及びその生成方法ならびに直交差分格子生成プログラムを格納した記憶媒体を提供する。 - 特許庁

The sensitivity analysis system 1 comprises a means to find the sensitivity of an element rigidity matrix according to central finite difference approximation which gives the amount of variations of a design parameter to the element rigidity matrix and has the secondary accuracy, and a means to find a series of simultaneous equations of finite element method by perturbation method using this found sensitivity.例文帳に追加

感度解析システム１は、設計パラメータの変動量を要素剛性マトリクスに与えて２次の正確性がある中心有限差分法近似により要素剛性マトリクスの感度を求める手段と、この求められた感度を用いて有限要素法の一連の連立方程式を摂動法により求める手段を備える。 - 特許庁