本文選題：局部耦合網(wǎng)絡(luò) + 相互依賴耦合網(wǎng)絡(luò)　； 參考：《東北大學(xué)》2014年碩士論文

【摘要】：隨著人類文明的進步和科學(xué)技術(shù)的發(fā)展,人們社會生活中的各個基礎(chǔ)設(shè)施網(wǎng)絡(luò)系統(tǒng)變得越來越完善,相互之間的耦合關(guān)聯(lián)程度也越來越高,這給人們的生活帶來了極大便利。但是由于各個基礎(chǔ)設(shè)施網(wǎng)絡(luò)之間耦合程度的增加,網(wǎng)絡(luò)的復(fù)雜程度也在增加,慢慢的就會超過人們目前的掌控能力,發(fā)生相繼故障的概率也越來越大。相關(guān)實驗研究已經(jīng)證明耦合網(wǎng)絡(luò)相比單層次網(wǎng)絡(luò)更加容易發(fā)生相繼故障,并且相繼故障對耦合網(wǎng)絡(luò)造成的災(zāi)難后果也更加嚴重,有關(guān)耦合網(wǎng)絡(luò)上相繼故障的蔓延機制亟待研究。目前,有關(guān)耦合網(wǎng)絡(luò)相繼故障的研究已經(jīng)成為學(xué)者們關(guān)注的熱點,但是有關(guān)耦合網(wǎng)絡(luò)耦合模式對相繼故障影響的研究依然存在許多不足之處,需要做深入的研究,本文基于耦合網(wǎng)絡(luò)上不同的耦合模式,進一步研究了不同拓撲結(jié)構(gòu)的耦合網(wǎng)絡(luò)上的相繼故障。主要內(nèi)容如下：(1)提出了局部耦合網(wǎng)絡(luò)上的相繼故障模型。大多數(shù)學(xué)者在研究耦合網(wǎng)絡(luò)的時候都將目光聚焦在相互依賴的多網(wǎng)耦合模型上,而忽略了實際網(wǎng)絡(luò)中存在局部耦合的現(xiàn)象,局部耦合網(wǎng)絡(luò)相比相互依賴的耦合網(wǎng)絡(luò)具有完全不同的相繼故障蔓延機制。本文構(gòu)建了局部耦合網(wǎng)絡(luò)模型,從網(wǎng)絡(luò)動態(tài)屬性的一個新的研究視角,研究負荷的動態(tài)變化對局部耦合網(wǎng)絡(luò)上相繼故障現(xiàn)象的影響。(2)提出了局部耦合網(wǎng)絡(luò)有效的保護策略。局部耦合網(wǎng)絡(luò)之間的“橋邊”與相互依賴網(wǎng)絡(luò)完全不同,它在兩個網(wǎng)絡(luò)之間的負荷流動過程扮演這一個重要的角色,通過實驗研究發(fā)現(xiàn),增加局部耦合網(wǎng)絡(luò)之間“橋邊”處理額外負荷的能力可以很大程度的提高整個網(wǎng)絡(luò)抵制相繼故障的魯棒性。所以本文提出了基于“橋邊”的資源重新分配策略和免疫策略的兩種網(wǎng)絡(luò)保護方法,并且通過數(shù)值模擬驗證了保護策略的有效性。(3)研究了不同耦合模式對相互依賴耦合網(wǎng)絡(luò)抵抗相繼故障能力的差異性影響�？紤]到負荷的分配、能力的限制等復(fù)雜網(wǎng)絡(luò)的動態(tài)屬性,建立了帶有可調(diào)參數(shù)的兩層次全局依賴耦合網(wǎng)絡(luò)上的相繼故障模型。在文中研究了兩種網(wǎng)絡(luò)結(jié)構(gòu)和三種連接模式構(gòu)成不同耦合網(wǎng)絡(luò)抵制相繼故障蔓延的情況,研究發(fā)現(xiàn),耦合網(wǎng)絡(luò)的耦合模式和模型參數(shù)的取值都會影響網(wǎng)絡(luò)抵制相繼故障的能力,對結(jié)果進行對比后尋找合適的相互依賴網(wǎng)絡(luò)間更好的耦合模式,有效地預(yù)防和控制相繼故障雪崩式的蔓延。本文通過研究不同耦合模式對耦合網(wǎng)絡(luò)抵抗相繼故障能力的影響,提出了有效的控制和預(yù)防耦合網(wǎng)絡(luò)上相繼故障發(fā)生和蔓延的策略,并且嘗試尋找最優(yōu)的具有較強的抵抗相繼故障能力網(wǎng)絡(luò)耦合模式,使人們在對已有的網(wǎng)絡(luò)進行維護和建設(shè)新的耦合網(wǎng)絡(luò)的時候能夠有科學(xué)有效的依據(jù)和指導(dǎo)參考。
[Abstract]:With the progress of human civilization and the development of science and technology, the network system of various infrastructure in people's social life becomes more and more perfect, and the degree of coupling between them becomes higher and higher, which brings great convenience to people's life. However, due to the increase of coupling degree between the various infrastructure networks, the complexity of the network is also increasing, which will slowly exceed the current control ability of people, and the probability of successive failures is also increasing. Related experiments have proved that coupled networks are more prone to successive failures than single-level networks, and the disaster consequences caused by successive failures are more serious. The spread mechanism of successive failures on coupled networks needs to be studied urgently. At present, the research on coupled network successive faults has become a hot topic for scholars. However, there are still many deficiencies in the study of the coupling mode of coupling network to the successive faults, which need to be further studied. In this paper, the successive faults in coupled networks with different topologies are studied based on different coupling modes. The main contents are as follows: (1) A sequential fault model on a local coupled network is proposed. When studying the coupling network, most scholars focus on the interdependent multi-network coupling model, but ignore the phenomenon of local coupling in the actual network. Compared with the interdependent coupled networks, the local coupling networks have completely different successive fault propagation mechanisms. In this paper, a local coupled network model is constructed. From a new perspective of dynamic properties of the network, the influence of dynamic load variation on successive failures in the local coupled network is studied. (2) an effective protection strategy for the local coupled network is proposed. The "bridge edge" between the local coupling networks is completely different from the interdependent network. It plays an important role in the load flow process between the two networks. The robustness of the whole network against successive failures can be greatly improved by increasing the ability of "bridge edge" between the local coupling networks to deal with the extra load. Therefore, this paper proposes two network protection methods based on "bridge side" resource redistribution strategy and immune strategy. The effectiveness of the protection strategy is verified by numerical simulation. (3) the different effects of different coupling modes on the ability of the interdependent coupled networks to resist successive failures are studied. Considering the dynamic properties of complex networks such as load distribution and capacity constraints, a sequential fault model on a two-level global dependent coupling network with adjustable parameters is established. In this paper, two kinds of network structure and three kinds of connection modes are studied. It is found that the coupling mode and model parameters of coupling network will affect the ability of network to resist successive faults. In order to prevent and control the avalanche spread of successive faults effectively, a better coupling mode between interdependent networks is found after the comparison of the results. By studying the influence of different coupling modes on the ability of coupling networks to resist successive faults, an effective strategy to control and prevent the occurrence and spread of successive faults in coupled networks is proposed. And we try to find the best coupling mode of network with strong ability to resist successive faults, so that people can have scientific and effective basis and guidance reference when maintaining existing networks and building new coupling networks.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：O157.5;TP393.06

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