基于Markov的供應鏈系統(tǒng)可靠性分析
發(fā)布時間:2018-02-21 18:13
本文關鍵詞: 供應鏈 可靠性 馬爾科夫 補充變量 Laplace變換 出處:《暨南大學》2014年碩士論文 論文類型:學位論文
【摘要】:在經(jīng)濟全球化、發(fā)達的信息技術時代的市場競爭比傳統(tǒng)市場的競爭更加激烈,競爭方式已從企業(yè)間的競爭已轉(zhuǎn)變?yōu)楣⿷滈g的競爭,供應鏈的核心競爭力體現(xiàn)在企業(yè)成員間的相互協(xié)作來抵抗風險事件的能力。然而,在逐漸開放的市場內(nèi),用戶需求不確定性、企業(yè)間合作的多變性、企業(yè)經(jīng)營目標的矛盾性、業(yè)務復雜性以及貿(mào)易壁壘政治因素、政治和民族文化問題、自然災害等的發(fā)生等,使得供應鏈可靠性受到極大的威脅。因此,供應鏈系統(tǒng)可靠性的研究具有重要的理論與實際意義。 本文在分析供應鏈流程和功能的基礎上,結(jié)合可靠性理論,建立含2個采購商、2個生產(chǎn)商、1個分銷商、1個零售商的供應鏈模型,對供應鏈系統(tǒng)內(nèi)出現(xiàn)的因天氣、人員、設備、技術導致風險事件進行分析,構(gòu)建系統(tǒng)狀態(tài)轉(zhuǎn)移圖,建立并求解微分方程,利用Markov、概率分析、Laplace變換、補充變量法等求出系統(tǒng)正常、4種異常、9種故障狀態(tài)下時間、頻度、次數(shù)等可靠性指標,在綜合計算供應鏈系統(tǒng)的收益、修理費用各項費用的條件下,列出供應鏈系統(tǒng)的利潤函數(shù),文末給出了一個算例,,驗證模型可靠性,并對供應鏈系統(tǒng)的運營管理給出了具體建議。
[Abstract]:In the economic globalization, the market competition in the developed information technology age is more intense than the traditional market competition, the competition mode has changed from the competition among enterprises to the competition between supply chains. The core competence of the supply chain is reflected in the ability of the members of the enterprise to cooperate with each other to resist the risk events. However, in the gradually open market, the uncertainty of user demand, the variability of the cooperation between enterprises, the contradiction of the business objectives, The complexity of business and the political factors of trade barriers, political and national cultural problems, natural disasters and so on, make the reliability of supply chain greatly threatened. The research of supply chain system reliability has important theoretical and practical significance. Based on the analysis of supply chain flow and function and reliability theory, a supply chain model with 2 buyers, 2 manufacturers, 1 distributor and 1 retailer is established. The technology causes risk events to be analyzed, system state transition diagrams are constructed, differential equations are established and solved. By using Markov-probability analysis Laplace transform and supplementary variable method, the time and frequency of 9 abnormal states of the system are obtained. Under the condition of synthetically calculating the profit and repair expenses of the supply chain system, the profit function of the supply chain system is listed. At the end of this paper, an example is given to verify the reliability of the model. And the operation and management of the supply chain system is given specific suggestions.
【學位授予單位】:暨南大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:F274
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