DEVICE AND METHOD FOR CORRECTION OF DESIGN CALCULATION RESULT

• Main Authors: SUGAWARA SATOSHI, UMANO TAKUYA, YOSHIOKA KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2014
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

PROBLEM TO BE SOLVED: To correct a calculated value by quantitatively evaluating a calculation error and unsureness of calculation contained in a calculated value obtained by simulation.SOLUTION: A design calculation result correction device according to the embodiment includes: a calculated value/measured value relative error calculation unit 112 for calculating a relative error E; an input parameter covariance error matrix calculation unit 114 for calculating an input parameter covariance error matrix WC; a purpose system sensitivity coefficient vector calculation unit 116 for calculating a purpose system sensitivity coefficient vector S; an experiment system sensitivity coefficient vector calculation unit 115 for calculating an experiment system sensitivity coefficient vector Srepresenting a variation amount of physical quantity to the unit change of an input value about a system of simulation; a purpose system physical quantity unsureness calculation unit 120 for calculating an input parameter origin physical quantity unsureness ERP; and a purpose system physical quantity calculated value correcting unit 121 for calculating a calculated value after the correction. 【課題】 シミュレーションで得られた計算値に含まれる計算誤差や計算の不確かさを定量評価して計算値を補正する。【解決手段】実施形態による設計計算結果補正装置は、相対誤差Ｅｐを演算する計算値・測定値相対誤差演算部１１２と、入力パラメータ共分散誤差行列ＷＣを演算する入力パラメータ共分散誤差行列演算部１１４と、目的体系感度係数ベクトルＳＲを演算する目的体系感度係数ベクトル演算部１１６と、模擬実験の体系について入力値の単位変化に対する前記物理量の変化量を表す実験体系感度係数ベクトルＳＥを演算する実験体系感度係数ベクトル演算部１１５と、入力パラメータ起因物理量不確かさＥＲＰを算出する目的体系物理量不確かさ演算部１２０と、補正後の計算値を算出する目的体系物理量計算値補正部１２１と、を有する。【選択図】図１