構造最適設計における設計条件と設計手法の明確化のための系統的方法論

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  • Systematic Identification Methodology of Specification and Approach for structural Design Optimization
  • コウゾウ サイテキ セッケイ ニ オケル セッケイ ジョウケン ト セッケイ シュホウ ノ メイカクカ ノ タメ ノ ケイトウテキ ホウホウロン

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Structural design optimization has become an effective paradigm for designing and developing various kinds of products. However, it is not so popular in the electric appliances in spite of their small sizes and relatively simple configurations. This paper first reviews the design and development processes of electric appliances in which CAE-based design and optimization based design methods were to be utilized. It reveals that the identification of design specifications is fairly important as their prerequisites in the field of electric appliances. Then this paper proposes a strategic scheme for systematically identifying specifications for structural design optimization. The scheme is composed of Specification Priority Matrix (SPM), for identifying the antipathetic importance of feature, cost, time and reliability, Failure Mode and Condition Specification (FMCS), for extracting, categorizing and identifying failure modes and their critical ones, Design Approach Tree (DAT), for selecting an appropriate design approach based on the result of SPM and FMCS, etc. Finally, its effectiveness and validity are discussed by studying the past design and development cases.

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