結合直觀模糊集與網圖評核術於最佳化可靠度維護策略研析

日益複雜與快速更新的設備系統給維修策略帶來了新的挑戰。裝備在長時間的運轉下退化亦無可避免，非預期故障所造成的損失甚至是傷亡，後果往往難以估計，因此如何在有限的資源與成本下維持設備或系統的可靠度，減少故障發生，就是相當重要的課題。網圖評核術(Graphical Evaluation and Review Technique, GERT)因本身具有獨特的迴路形式與機率特性，適合處理複雜的系統問題。而對於GERT方法中，於每個作業分枝上的不確定性，則將以直觀糢糊集(Intuitionictic Fuzzy Sets, IFSs)作適當的處理，因為直觀糢糊集可以提供正反兩隸屬度的信息，使得它再處理不確定性更能客觀地呈現現實狀況的本質。因此，本研究將以結合網圖評核術與直觀模糊集（簡稱IFSs-GERT）來建構設備系統可靠度模型，並藉此探討不同維修間隔時間與維修方式對設備系統可靠度影響，提供決策者更明確、多樣化的資訊，以制訂出最佳化維修策略。

關鍵字

網圖評核術；直觀模糊集；可靠度；維修策略

並列摘要

More and more new subjects about the maintenance decision research come forth because of the complexity of equipment. Deterioration of equipments is inevitable after they put in operation, and the damage is difficult to estimate in consequence of unexpected failure. Therefore, it is an important issue to develop a maintenance strategy that can keep equipments reliability without going over the budget.GERT (Graphical Evaluation and Review Technique, is abbreviated as GERT) which has unique circuit form and probability characteristic, can solve the more complicated circuit problem and has accurate analysis functions. But GERT which every parameter values on each operation route have uncertainty. There are apparent achievements on dealing with uncertainly in the IFSs (Intuitionictic Fuzzy Sets, is abbreviated as IFSs) theory. Because it is better to represent the values of the membership and non-membership of an element in a set by intervals of possible real numbers instead of real numbers.Therefore, this paper will hybrid IFSs and GERT approaches to develop a reliability model which can provide more specific and diversified information for decision makers to develop the optimal maintenance which determines how long each equipment which be maintained by what method.

並列關鍵字

GERT ； IFSs ； reliability ； maintenance policy

國際替代計量

結合直觀模糊集與網圖評核術於最佳化可靠度維護策略研析

全文下載

主題瀏覽