【摘要】：冷鏈配送的服務水平對于生鮮食品的最終品質具有突出的影響。低效的冷鏈配送體系,不僅會導致高額的貨損成本,還存在引發(fā)食品安全問題的風險。因此,集成和整合冷鏈物流資源,優(yōu)化冷鏈物流配送體系是冷鏈配送中重要的研究課題。本文在食品冷鏈配送小批量化、頻繁化,配送網(wǎng)絡節(jié)點分布離散化的大背景下,以冷鏈物流企業(yè)運輸網(wǎng)絡規(guī)劃為研究對象,運用集成化物流戰(zhàn)略中的LRP思想,結合描述生鮮食品腐敗變質行為的“T.T.T理論”和“阿侖尼烏斯方程”,對生鮮食品的配送體系構建和優(yōu)化問題進行了深入地研究。論文的主要研究工作內(nèi)容如下:⑴在分析生鮮食品及其冷鏈物流的流程結構及運輸方式的基礎上,結合“T.T.T理論”和“阿侖尼烏斯方程”對生鮮食品配送活動的特點進行了剖析,推導了生鮮食品在冷鏈物流環(huán)節(jié)中的品質衰減函數(shù),分析了冷鏈物流的成本構成,建立了生鮮食品冷鏈配送的三層LRP模型;⑵基于本文LRP的特點,從目標函數(shù)和求解步驟上對其數(shù)學模型進行了分解,設計了一套由最小包絡法和模擬退火算法組成的兩階段啟發(fā)算法,并應用一組算例驗證了該方法的可行性;⑶對S冷鏈物流公司鄂西北地區(qū)的配送網(wǎng)絡規(guī)劃進行了案例分析,基于配送中心與客戶群體的聚類分析結果,運用matlab軟件分別對各配送中心的巡回路徑進行了求解與優(yōu)化,并通過對比研究,論證了考慮生鮮食品變質懲罰成本對于LRP求解結果的影響。
[Abstract]:The service level of cold chain distribution has a prominent influence on the final quality of fresh food. Low efficiency cold chain delivery system will not only lead to high cost of goods damage, but also lead to the risk of food safety problems. Therefore, integrating and integrating cold chain logistics resources and optimizing cold chain logistics distribution system are important research topics in cold chain distribution. Under the background of small batch distribution, frequent distribution and discrete distribution of distribution network nodes, this paper takes the transportation network planning of cold-chain logistics enterprises as the research object and applies the LRP idea of integrated logistics strategy. Combined with "T.T theory" and "Arrhenius equation" to describe the spoilage behavior of fresh food, the construction and optimization of distribution system of fresh food were deeply studied. The main contents of this thesis are as follows: 1 on the basis of analyzing the flow structure and transportation mode of fresh food and its cold chain logistics, Combined with "T.T theory" and "Arrhenius equation", the characteristics of fresh food distribution activities were analyzed, the quality attenuation function of fresh food in cold chain logistics link was deduced, and the cost composition of cold chain logistics was analyzed. A three-layer LRP model for cold chain distribution of fresh food was established. 2 based on the characteristics of LRP in this paper, the mathematical model is decomposed from objective function and solution step, and a set of two-stage heuristic algorithm is designed, which is composed of minimum envelope method and simulated annealing algorithm. The feasibility of the method is verified by a set of examples. (3) A case study of distribution network planning of S cold chain logistics company in Northwest Hubei Province is carried out. Based on the results of cluster analysis between distribution center and customer group, the itinerant path of each distribution center is solved and optimized by using matlab software. The effect of penalty cost of fresh food deterioration on LRP solution was demonstrated by comparative study.
【學位授予單位】：武漢理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：F259.2

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