本文選題：安全性分析 + 失效時(shí)序　； 參考：《南京航空航天大學(xué)》2016年碩士論文

【摘要】：靜態(tài)的系統(tǒng)安全性分析方法在對含有失效時(shí)序關(guān)系的復(fù)雜系統(tǒng)進(jìn)行安全性分析時(shí),會(huì)在分析過程中丟失失效事件發(fā)生的時(shí)序信息,因此分析結(jié)果中可能含有潛在的錯(cuò)誤。同時(shí),現(xiàn)有可以考慮時(shí)序關(guān)系的分析方法,存在只適合進(jìn)行定量分析或建模規(guī)模大,求解困難等問題。因此,本文研究一種考慮失效時(shí)序關(guān)系的復(fù)雜系統(tǒng)安全性分析方法,增加了同時(shí)與門(SAND)的處理能力,不僅適合對復(fù)雜系統(tǒng)進(jìn)行定性的分析,而且分析過程清晰,結(jié)果更加準(zhǔn)確。本文首先總結(jié)了復(fù)雜系統(tǒng)的失效特點(diǎn),對現(xiàn)有可以考慮失效時(shí)序關(guān)系的分析方法從分析原理、分析流程及不足方面進(jìn)行了評述,說明本文方法提出的必要性。該方法利用系統(tǒng)結(jié)構(gòu)分層思想,以狀態(tài)圖作為描述工具,描述系統(tǒng)各層級失效狀態(tài)遷移關(guān)系,同時(shí),根據(jù)狀態(tài)圖模型,利用三種時(shí)序邏輯門,對失效時(shí)序信息進(jìn)行準(zhǔn)確邏輯表達(dá),建立復(fù)雜系統(tǒng)的失效時(shí)序關(guān)系模型,提出基于時(shí)序邏輯規(guī)則的求解算法,以求解導(dǎo)致系統(tǒng)級失效的最小割序。最后,將本方法用于實(shí)例部分,通過和傳統(tǒng)分析方法求解結(jié)果進(jìn)行對比,驗(yàn)證方法的準(zhǔn)確性和適用性。
[Abstract]:The static system security analysis method will lose the time sequence information of the failure events in the process of security analysis of complex systems with failure time series, so the analysis results may contain potential errors. At the same time, the existing analysis methods can consider the time series relationship, which is only suitable for quantitative analysis or large scale modeling, so it is difficult to solve. Therefore, this paper studies a security analysis method for complex systems considering failure time series, which increases the processing capacity of the complex systems at the same time. It is not only suitable for qualitative analysis of complex systems, but also clear in the analysis process and more accurate in the results. In this paper, the failure characteristics of complex systems are summarized at first, and the existing analysis methods which can consider the failure time series relation are reviewed from the aspects of analysis principle, analysis flow and deficiency, and the necessity of this method is explained. The method uses the idea of system structure stratification and the state diagram as a description tool to describe the relationship between the failure states of each level of the system. At the same time, according to the state diagram model, three kinds of time series logic gates are used. The failure time sequence information is accurately expressed, the failure time series relation model of complex system is established, and the algorithm based on the time sequence logic rule is proposed to solve the minimum cut order that leads to the system level failure. Finally, the method is used as an example to verify the accuracy and applicability of the method.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：V328;N941.4

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