應用串並聯解析結構可靠度之最佳化設計

機構典藏 > College of Engineering > Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering > Proceeding > Item 987654321/38222

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Title:	應用串並聯解析結構可靠度之最佳化設計
Other Titles:	Reliability-based Optimal Structural Design Applying Parallel-series Systems and Utility function
Authors:	古國昌;史建中
Contributors:	淡江大學機械與機電工程學系
Keywords:	結構可靠度;結構最佳化;串並聯解析;工程設計;Structural reliability;structural optimization;parallel-series analysis;engineering design
Date:	2001-12
Issue Date:	2010-01-11 14:56:09 (UTC+8)
Abstract:	複雜結構的各元件應力計算，進而求得其結構可靠度作為設計土之依據是相當繁雜且缺乏效率的。本文參考結構串並聯的觀念，結合結構之力分析，整合出較少的破壞函數，再以此破壞函數及應用H-R 之疊代法求解部分區域結構之元件組合可靠度。本文比較三種系統結構可靠度的表示式，應用於同時最小化結構重量及最大化系統結構可靠度之最佳化設計。結果顯示串並聯為有效率的方式，最大化其中最小的區域元件組合可靠度，可得最嚴謹的最佳設計值。 Structural reliability index computed by H-R method that is obtained from parallel-series concept in a structural system has been studied in this paper. A utility function constructed by reliability index and structural weight provides to multi-objective optimization design for yielding a compromise result. Three combination methods of connections each local part of the structure has been used to represent the overall structural reliability. The design examples show that the parallel-series and H-R algorithm is efficient and good for computing structural reliability. The optimum design process is practical and usable for a complex and high reliability structural design.
Relation:	中華民國力學學會90年度年會暨第25屆全國力學會議=Proceedings of 25 National Conference of Theoretical and Applied Mechanics，11頁
Appears in Collections:	[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Proceeding

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