吉林省A醫(yī)藥物流有限公司配送路徑優(yōu)化研究
本文選題:醫(yī)藥物流 + 車輛路徑問題; 參考:《吉林大學》2014年碩士論文
【摘要】:由于近年來我國醫(yī)藥需求量的不斷增長,醫(yī)藥物流行業(yè)面臨著巨大的機遇與挑戰(zhàn),醫(yī)藥配送作為醫(yī)藥物流的關鍵環(huán)節(jié)也受到越來越多的關注。在醫(yī)藥物流企業(yè)競爭日益激烈的今天,如何能夠構建高效的醫(yī)藥物流配送網(wǎng)絡,設計合理的車輛配送路線,對于醫(yī)藥物流企業(yè)降低配送成本,節(jié)約配送時間,提高服務質量,增加運營效益具有重要的理論與現(xiàn)實意義。吉林省A醫(yī)藥物流有限公司作為一家配送網(wǎng)絡覆蓋全省95%的三級甲等醫(yī)院、85%的二級甲等醫(yī)院單位,單靠配送人員的個人經(jīng)驗來安排配送車輛的運輸路徑已經(jīng)不能適應公司的發(fā)展需要,通過采用科學的方法合理安排配送車輛是企業(yè)現(xiàn)在面臨的重要問題。 基于以上背景,本文以吉林省A醫(yī)藥物流有限公司為研究對象,結合國內外物流配送路徑優(yōu)化的研究成果,對公司的配送路徑優(yōu)化問題進行了研究。首先,本文簡要介紹了醫(yī)藥物流和車輛路徑問題的相關理論;其次,對公司的配送現(xiàn)狀進行了分析,針對其車輛路徑選擇不科學的問題建立了起訖點相同的單車場、非滿載、有時間窗約束的車輛路徑優(yōu)化問題模型,該模型以運輸成本最小為優(yōu)化目標,以客戶需求量、服務時間要求和配送車輛的容量為約束條件。再次,通過對各種算法原理、特點、操作步驟等內容的分析比較,確定利用改進節(jié)約法對具體模型進行求解。最后,,利用MATLAB軟件工具對基于改進節(jié)約算法的公司長春地區(qū)的配送線路進行優(yōu)化求解,得出了最優(yōu)的車輛配送線路。通過對優(yōu)化前后線路選擇方案的比較,發(fā)現(xiàn)優(yōu)化后的方案能夠減少配送距離和節(jié)約配送時間,在一定程度上提高企業(yè)的經(jīng)濟效益。
[Abstract]:Due to the increasing demand for medicine in recent years, the pharmaceutical logistics industry is facing enormous opportunities and challenges. As a key link of pharmaceutical logistics, medical distribution has been paid more and more attention. In today's increasingly competitive pharmaceutical logistics enterprises, how to build an efficient medical logistics distribution network, design a reasonable vehicle distribution route, for pharmaceutical logistics enterprises to reduce distribution costs, save distribution time, improve service quality, Increasing operational efficiency has important theoretical and practical significance. Jilin Province A Pharmaceutical Logistics Co., Ltd., as a distribution network covering 95% of the province's Grade 3A hospitals, 85% of the second-class first class hospital units, Relying on the personal experience of the distribution personnel to arrange the transportation path of the distribution vehicles can not meet the needs of the development of the company. It is an important problem for enterprises to arrange the distribution vehicles reasonably by adopting scientific methods. Based on the above background, this paper takes Jilin A Pharmaceutical Logistics Co., Ltd. as the research object, combined with the domestic and foreign logistics distribution route optimization research results, the distribution path optimization of the company was studied. Firstly, this paper briefly introduces the related theories of medical logistics and vehicle routing problem. Secondly, it analyzes the present distribution situation of the company, and establishes a bicycle yard with the same ending point, which is not full load, aiming at the unscientific choice of vehicle route. A vehicle path optimization model with time window constraints is presented. The model takes the minimum transportation cost as the optimization objective and takes customer demand, service time requirements and the capacity of distribution vehicles as constraints. Thirdly, by analyzing and comparing the principles, characteristics and operation steps of various algorithms, it is determined to use the improved saving method to solve the specific model. Finally, the MATLAB software tool is used to optimize the distribution line of Changchun area based on the improved saving algorithm, and the optimal vehicle distribution line is obtained. By comparing the route selection schemes before and after the optimization, it is found that the optimized scheme can reduce the distribution distance and save the distribution time, and to a certain extent improve the economic benefits of enterprises.
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:F426.72;F252;TP301.6
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