To quantitatively evaluate a more minute surface distortion.SOLUTION: A surface distortion evaluation device comprises: a surface shape data acquisition unit 11 that acquires a surface shape data indicative of a shape of an evaluation object of a structure obtained by an actual measurement or simulation; a surface design data acquisition unit 12 that acquires surface design data indicative of a surface shape in a design; a first curvature calculation unit 13 that calculates a first curvature by a first gauge length, using the surface shape data; a second curvature calculation unit 14 that calculates a second curvature by a second gauge length, using the surface shape data; and an evaluation calculation unit 15 that calculates a relative value of the first curvature with respect to the second curvature. A point of the first curvature and a point of the second curvature, which are used in respective calculations of the relative value, are at an overlapping location when viewing from a first direction, and the first gauge length is a length equivalent to the second gauge length.SELECTED DRAWING: Figure 1

    【課題】より微小な面歪を定量的に評価する。【解決手段】面歪評価装置は、実測又はシミュレーションで得られた構造物の評価対象の表面の形状を示す表面形状データを取得する表面形状データ取得部11と、設計上の表面の形状を示す表面設計データを取得する表面設計データ取得部12と、表面形状データを用いて第1ゲージ長で第1曲率を計算する第1曲率計算部13と、表面設計データを用いて第2ゲージ長で、第2曲率を計算する第2曲率計算部14と、第1曲率の第2曲率に対する相対値を計算する評価値計算部15を備える。相対値のそれぞれの計算に用いられる第1曲率の点と第2曲率の点は、第1の方向から見て重なる位置にあり、第1ゲージ長は第2ゲージ長に相当する長さである。【選択図】図1


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    Title :

    SURFACE DISTORTION EVALUATION DEVICE, SURFACE DISTORTION EVALUATION METHOD AND PROGRAM


    Additional title:

    面歪評価装置、面歪評価方法、及び、プログラム


    Contributors:

    Publication date :

    2021-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B62D MOTOR VEHICLES , Motorfahrzeuge



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