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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/52414

    Title: 以逆可靠度分析解穩健設計最佳化
    Other Titles: Reliability based robust design optimization using performance measure approach
    Authors: 楊家鵬;Yang, Jai-pon
    Contributors: 淡江大學機械與機電工程學系碩士班
    Keywords: 合理性穩健;目標性能穩健;全面穩健設計最佳化;feasibility robustness;performance robustness;total robustness
    Date: 2010
    Issue Date: 2010-09-23 17:37:11 (UTC+8)
    Abstract: 本文探討可靠度基的設計最佳化(Reliability Based Design Optimization ,RBDO)含不確定的統計資訊,以變異球體來描述相關聯性的分佈狀態,及以逆可靠度分析,應用到RBDO及全面穩健設計最佳化,發展設計流程及技術。
    In general, a reliability-based design optimization (RBDO) problem contains the system reliability consideration of optimizing design goal subject to design constraints. Due to the uncertainty of random variables and/or random parameters, the final design may have a low possibility of satisfying constraints. In other word, once the design closes to constrained boundary (means active constraint), it may have a high possibility in infeasible region. This thesis applies a variation sphere transformation that moves the feasibility boundary to promote the feasibility of active constraints. The complete design process is called
    the RBDO considering feasibility robustness (RBDO-FR).
    Due to the uncertainty of random variables and/or random parameters, the final design may also have a wide distribution of design goal performance. In other word, the larger deviation of performance is not a result of robust performance. This thesis applies a variation sphere transformation, two-level factorial experiment and Takuchi three-point approximation to estimate the variation. We minimize the performance variation so that the complete design process is called the RBDO
    considering performance robustness (RBDO-PR).
    Base on the consideration of RBDO-FR and RBDO-PR, it is obviously to take into account a RBDO problem simultaneously contain both feasibility robustness and performance robustness. Thus, a RBDO with total robustness (RBDO-TR) is the main development in this thesis. The whole integrated design process of RBDO-TR is presented with some illustrative examples and engineering design. In the development, the performance measure approach (PMA) is applied for the structural
    reliability analysis.
    Appears in Collections:[機械與機電工程學系暨研究所] 學位論文

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