發(fā)布時間：2018-04-05 01:24

  本文選題：復(fù)雜網(wǎng)絡(luò)　切入點：級聯(lián)失效　出處：《長沙理工大學(xué)》2014年碩士論文

【摘要】：城市道路交通網(wǎng)絡(luò)系統(tǒng)是城市運輸系統(tǒng)的中的基礎(chǔ)組成部分,作為基本的構(gòu)件之一承載著人類的社會經(jīng)濟活動。但是隨著社會經(jīng)濟的高速發(fā)展,城市道路上交通擁堵問題越來越嚴(yán)重,城市道路交通網(wǎng)絡(luò)中個別結(jié)點的失效可能引起大規(guī)模的交通癱瘓,即城市道路交通網(wǎng)絡(luò)上存在級聯(lián)失效,擁堵可能會在整個交通網(wǎng)絡(luò)上蔓延,城市道路交通網(wǎng)絡(luò)呈現(xiàn)出脆弱性。因此,研究城市道路交通網(wǎng)絡(luò)上的災(zāi)害蔓延的動力學(xué)模型具有重要的意義。本文首先對國內(nèi)外的城市道路交通復(fù)雜網(wǎng)絡(luò)理論、級聯(lián)失效及其內(nèi)涵研究現(xiàn)狀進行了總結(jié),分析了城市道路交通網(wǎng)絡(luò)特性,并且考慮城市道路交通網(wǎng)絡(luò)是一種混合網(wǎng)絡(luò)構(gòu)建了城市道路交通雙層網(wǎng)絡(luò)模型。其次,構(gòu)建了動態(tài)最短路徑模型,提出了基于遺傳算法的最短路徑搜索并設(shè)計了算法步驟。再次,考慮結(jié)點的自修復(fù)功能和災(zāi)害蔓延機制,構(gòu)建城市道路交通網(wǎng)絡(luò)上的災(zāi)害蔓延動力學(xué)模型,基于災(zāi)害蔓延動力學(xué)模型分析了城市道路交通網(wǎng)絡(luò)中結(jié)點失效結(jié)點連接強度、結(jié)點度、及自修復(fù)因子的相關(guān)性。最后,設(shè)計了一個算例對模型進行模擬試驗,模擬試驗表明了結(jié)點自修復(fù)能力和延遲時間因子對災(zāi)害蔓延有重要影響,所建立的模型能夠有效的模擬城市道路交通網(wǎng)絡(luò)的災(zāi)害演化動力學(xué)行為。最后就論文的不足以及研究的展望進行了簡要的討論。
[Abstract]:City road traffic network system is the basis of city transportation system in part, as one of the basic components of carrying the social economic activities of human beings. But with the rapid development of social economy, the city traffic congestion on the road more and more serious, the failure of city road network of individual nodes may cause massive traffic paralysis. The city road traffic congestion exists on the network cascading failure, may spread in the traffic network, city road traffic network presents the vulnerability. Therefore, plays an important role in dynamic model of road traffic network of city disaster spreading. Based on the domestic and foreign city road traffic complex network theory, and cascading failure the connotation of research are summarized, analyzed the characteristics of city road network, and consider the city traffic network is a Hybrid network to construct the city road traffic double network model. Secondly, construct dynamic shortest path model is proposed to search the shortest path based on genetic algorithm and design steps of the algorithm. Thirdly, considering the self repairing function and disaster spreading mechanism node, construction of city road network on the spread of the disaster disaster dynamics model. Spread dynamics model to analyze the city road traffic network node failure node connection strength, node degree, and based on the correlation between self repair factor. Finally, an example is designed to simulate the test, simulation results show that the self repairing ability of nodes and the delay time of disaster spreading factor has an important influence, the the model can simulate the city road traffic network effective disaster evolution dynamics. Finally the lack and future of this paper is to discuss. Theory.

【學(xué)位授予單位】：長沙理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U491
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本文編號：1712599