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遺伝的アルゴリズムを用いた非ダルシー流れのパラメータ推定
http://hdl.handle.net/10191/17325
1ab84c9e-b958-4b5d-bb5d-b324fc66f3d1
名前 / ファイル | ライセンス | アクション | |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2012-01-31 | |||||
タイトル | ||||||
タイトル | 遺伝的アルゴリズムを用いた非ダルシー流れのパラメータ推定 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | 遺伝的アルゴリズムを用いた非ダルシー流れのパラメータ推定 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ロックフィル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非ダルシー流れ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | パラメータ推定 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 単純遺伝的アルゴリズム | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | FEM計算 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Rockfill | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | non-Darcy flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | parameter estimation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | simple genetic algorithm | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | FEM calculation | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他のタイトル | ||||||
その他のタイトル | Parameter Estimation of Non-Darcy Flow by Using Genetic Algorithms | |||||
著者 |
森井, 俊広
× 森井, 俊広 |
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著者別名 | ||||||
識別子 | ||||||
識別子 | 163979 | |||||
識別子Scheme | WEKO | |||||
姓名 | ||||||
姓名 | Morii, Toshihiro | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | ロックフィルを通る非ダルシー流れのパラメータ推定法を提案した。流れの水頭損失特性はForchheimer式で表した。パラメータ推定には、生物進化のメカニズムを工学的に模擬した単純遺伝的アルゴリズムを用いた。堤体を通る流量の観測値と非線形流れのFEM解析からえられる計算値との偏差平方和を目的関数とした。これを最小にするような染色体を探索することにより、流れの水頭損失特性を最も適切に記述する係数、A、Bを求めるようにした。係数、A、Bを1個の染色体でコーディソグし、染色体群に選択、交叉、突然変異の遺伝操作を加えた。選択に必要な適合度は、目的関数の逆数に線形スケーリングをかけて評価した。パラメータ推定法を、室内水路で実施した小規模堤体実験に適用した。推定された係数は、実験の測定値を適切に説明するものであり、ここで提案したパラメータ推定法が十分な実務性をもつことを確認できた。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A parameter estimation procedure that employs a simple genetic algorithm combined with FEM calculation is proposed to investigate hydraulic property of non-Darcy flow through rockfill. The head loss property of the flow is expressed by the Forchheimer equation in which two coefficients are included. The simple genetic algorithm searches a chromosome that minimizes a squared deviation of flow discharge through rockfill between observation and FEM calculation, and then determines an optimal set of coefficients. Two coefficients of non-Darcy flow are coded into a binary chromosome. The fitness value of the chromosome is calculated as a reciprocal of a sum of the squared deviation of flow discharge mentioned above. The chromosomes with large fitness are selected to reproduce a next generation of offsprings. The parameter estimation procedure is applied to stage-discharge data measured in laboratory embankment tests in a water flume to estimate two coefficients of non-Darcy flow. Good comparison between measurement and FEM calculation shows a practical effectiveness of the parameter estimation procedure developed. | |||||
書誌情報 |
新潟大学農学部研究報告 en : 新潟大学農学部研究報告 巻 54, 号 2, p. 159-167, 発行日 2002-03 |
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出版者 | ||||||
出版者 | 新潟大学農学部 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03858634 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00183393 | |||||
著者版フラグ | ||||||
値 | publisher |