「世大智科/天才家居」-我們創業囉
Contact Professor: Yeh-Liang Hsu (徐業良)

九十一學年度元智大學機械工程研究所碩士專班劉佐龍碩士論文

Master thesis by T. L. Liu, Mechanical Engineering Department, Yuan Ze University, 2003

91碩士論文:以模糊比例微分控制法對軸對稱薄殼結構做結構最佳化

  本論文提出了一個以模糊比例微分控制(fuzzy PD control)來探討軸對稱薄殼結構厚度剖面的最佳化。在傳統的最佳化演算法中,常以純數值的方式去看待最佳化問題,對於問題本身的工程經驗和知識卻沒有利用它。本研究是以模糊比例微分控制最佳化演算法代替以純數值的方式取得下一次迭代的設計點,而且工程上的知識和經驗也可以利用模糊規則(fuzzy rules)建立在最佳化演算法中。此模糊比例微分控制最佳化引擎應用在本研究的軸對稱薄殼結構厚度剖面的最佳化例子中,都有良好的收斂性表現,且每次迭代僅需函數值,不需一次微分。

A Fuzzy PD Controller for Structural Optimization of Axis Symmetric Shells

  This paper presents a fuzzy PD controller for determining the optimal thickness profile of axis symmetric shell structures. Traditional numerical optimization algorithms treat the optimization problem as pure mathematical problems. Engineering knowledge about the problem is not utilized in the optimization process. The idea of the fuzzy PD controller optimization algorithm is that, instead of using purely numerical information to obtain the new design point in the next iteration, engineering knowledge and human supervision process can be modeled in the optimization algorithm using fuzzy rules. The fuzzy PD controller optimization engine appears to have stable performance in various examples.
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Last Updated:2010/4/30