JP2020109629A - デジタルコンピュータの支援による階層的マルチスケール部品設計のための方法及びシステム - Google Patents
デジタルコンピュータの支援による階層的マルチスケール部品設計のための方法及びシステム Download PDFInfo
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Abstract
Description
Claims (20)
- コンピュータ実装方法であって、
少なくとも1つの制約を含む少なくとも1つの設計基準を指定することと、
表現の全てのレベルにおいて前記指定された基準を満たす設計ファミリーの階層表現を構築することであって、前記階層表現は、1つ以上の表現のレベルを含み、より低い表現のレベルが、より高い表現のレベルよりも設計に関する多くの詳細を提供し、それによって、前記設計ファミリーを更に制限する、構築することと、
前記指定された基準、並びに前記表現の前記レベルにリンクする追加の制約を満たす、前記表現の全てのレベルにおいて設計ファミリーを合成することと、を含む、方法。 - 前記設計基準が、前記制約を満たす設計に対する性能指数を提供する少なくとも1つの目的関数を更に含み、前記設計ファミリーを合成することは、前記目的関数に対する最適化を更に含む、請求項1に記載の方法。
- 前記階層表現が、前記設計ファミリーの形状及び材料分布の代理特性を含み、前記代理特性が、前記設計基準に対する前記設計ファミリーを評価するために十分な情報を提供する、請求項1に記載の方法。
- 前記代理特性が、所与のレベルでの前記形状及び材料分布の機能ベースへの投影を表す収束列又は一連の変数のサブ有限列を含む、請求項3に記載の方法。
- 変数のより長いサブ列が、前記階層表現のより低いレベルで決定される、請求項4に記載の方法。
- 前記階層表現の各レベルが、空間セル分解を含み、前記空間セル分解の全てのレベルにおける全てのセルに、1つ以上の代理特性が割り当てられる、請求項3に記載の方法。
- 前記レベルの各々における前記セルが、次のより低いレベルで前記セルを得るために、独立セルに分解される、請求項6に記載の方法。
- 前記階層表現の各レベルが、前記セルのサイズによって決定されたサイズスケールでの前記形状及び材料分布を説明する、請求項6に記載の方法。
- 追加の制約が、前記分解から得られた前記セルの特性に、所与のレベルのセルの前記特性をリンクさせる、請求項6に記載の方法。
- 前記代理特性が、セル内の前記形状及び材料分布の積分特性であり、前記レベルにわたってそれをリンクさせる前記追加の制約が、積分特性の加法性である、請求項9に記載の方法。
- 前記最終形状及び材料分布は、前記代理特性が全ての表現のレベルのために合成されるまで決定されない、請求項3に記載の方法。
- システムであって、
メモリに連結されたプロセッサを備え、前記メモリが、
階層表現の各レベルにおいて各セルに割り当てられた特性を用いた空間セル分解によって、設計ファミリーの形状及び材料分布の代理特性の前記階層表現を合成することと、
前記階層表現のトップレベルから開始して、前記トップレベルで実行される解析に基づいて、前記トップレベルで指定された制約を満たす、前記トップレベルにおける特性を判定することと、
前記トップレベルを下回る各レベルについて、各セルを所与のレベルで更に分解して次のレベルの独立セルにすることを更に含むプロセスを実行することであって、前記子セルに割り当てられる前記代理特性の決定が、前記所与のレベルでの前記セルにおける前記特性を強制して、前のレベルで前記セルにおいて決定された前記代理特性と一致したままであるようにする、追加の制約を受ける前記所与のレベルで行われる解析に基づいて行われる、実行することと、を実行するために、前記プロセッサによって実行可能な実行命令を格納する、システム。 - 各レベルで合成された前記代理特性が、それらの代理特性を所有する設計ファミリー又は同等クラスを宣言的に表し、各レベルでの前記決定が、前記前のレベルのセルの前記特性を再分布させることにより、設計の前記クラスをサブクラスに更に制限する、請求項12に記載のシステム。
- 設計の前記ファミリー又は前記同等クラスが前記表現の最下位レベルで十分に制限されて、所与の製造プロセス及び材料ミクロ構造のうちの少なくとも1つによって実現される交換可能な設計のクラスとして解釈されるとき、前記プロセスが終了する、請求項12に記載のシステム。
- 前記所与の製造プロセス又は材料のミクロ構造は、代理特性の前記合成が全てのレベルで完了した後に完成する、請求項14に記載のシステム。
- 前記プロセッサが、1つ以上の目的関数に従って、前記レベルのうちの1つ以上において、前記代理特性を更に最適化する、請求項12に記載のシステム。
- 前記最適化が、パレートフロントに沿って解を列挙することを含む、請求項16に記載のシステム。
- 各レベルにおける前記決定が、前記所与のレベルでの代理特性によって表される設計の1つ以上の候補ファミリーにおいて反復させることによって実行される、請求項12に記載のシステム。
- 前記反復が、前記所与のレベルにおける前記制約又は目的関数のうちの少なくとも1つの感度又は勾配によって、前記代理特性の変化に誘導される、請求項18に記載のシステム。
- 方法であって、
階層表現の各レベルにおいて各セルに割り当てられた特性を用いた空間セル分解によって、設計ファミリーの形状及び材料分布の代理特性の前記階層表現を可視化することと、
前記表現の指定されたレベルにおいて、代理特性の値の色分けを表示することと、を含む、方法。
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US16/236,949 US11507054B2 (en) | 2018-12-31 | 2018-12-31 | Method and system for hierarchical multi-scale part design with the aid of a digital computer |
US16/236,949 | 2018-12-31 |
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