本文選題：虛擬企業(yè) + 資源選擇　； 參考：《江蘇科技大學》2014年碩士論文

【摘要】：敏捷制造被認為是制造模式發(fā)展的主要趨勢之一，虛擬企業(yè)作為敏捷制造的具體組織形式，以其快速響應市場，滿足客戶需求的特性被越來越多的研究和應用。而傳統(tǒng)的虛擬企業(yè)多以企業(yè)單元作為基本的研究對象，難以在市場需求發(fā)生變化時做出快速有效的反應，缺乏必要的柔性和靈活性。而單元化制造快速響應市場需求，靈活組織生產(chǎn)計劃的特點與虛擬企業(yè)的組建理念不謀而合，本文將單元化的制造方式引入到虛擬企業(yè)的構建和生產(chǎn)運作上，在虛擬企業(yè)中推行單元化的制造方式，既有效的提高了虛擬企業(yè)的敏捷性，也拓展了傳統(tǒng)單元化生產(chǎn)的應用空間，具有一定的積極意義和研究價值。 根據(jù)虛擬企業(yè)資源分布和加工任務的特點，構建虛擬企業(yè)單元化的概念模型。按照一定的原則和虛擬企業(yè)加工任務的工藝流程，對任務加以分解，形成與中間任務對應的邏輯制造單元LMU，各LMU的組合形成邏輯加工路線LMP。每一個LMU對應多個可以完成加工任務的敏捷制造單元AMU，AMU與LMU為多映射關系，即一個邏輯制造單元LMU可由多個敏捷制造單元AMU完成，同樣的，每一AMU可能具備多個LMU所描述的加工能力。對不同制造單元的選擇和有序排列，形成可執(zhí)行的加工路線EMP,通過對諸如質量、時間和成本等優(yōu)化目標考量，尋求最優(yōu)的EMP。與虛擬企業(yè)一樣，虛擬企業(yè)單元化制造系統(tǒng)隨著加工任務的出現(xiàn)而形成，隨著任務的完成而消失。本文主要從資源的選擇以及動態(tài)制造單元的重構兩個方面對虛擬企業(yè)單元化制造系統(tǒng)進行分析和研究。在基于制造單元的虛擬企業(yè)資源選擇過程中，著重考慮時間、成本和質量等指標對資源選擇的影響，并據(jù)此構建了資源的優(yōu)化選擇模型，以期構建最優(yōu)的敏捷加工路線。動態(tài)制造單元作為虛擬企業(yè)單元化制造系統(tǒng)的基本單位和執(zhí)行層，其敏捷性和柔性對整個系統(tǒng)至關重要，需要根據(jù)任務的變化進行不斷地重構。動態(tài)制造單元的重構在本質上是對資源的選擇和聚類，通過對資源的選擇確定待加工工件在不同加工路徑上的加工數(shù)量，然后利用成組技術中常用的金氏聚類算法對設備工件矩陣進行成組聚類，，完成對動態(tài)制造單元的重構。 最后，結合某模具企業(yè)的實際情況，通過對企業(yè)存在的問題加以分析，完成了對企業(yè)的加工流程和制造單元的重構，并結合綜合評價模型對重構前后的效果加以評價，說明重構的有效性和必要性。
[Abstract]:Agile manufacturing is considered to be one of the main trends of manufacturing pattern development. As a specific organization of agile manufacturing, virtual enterprise has been studied and applied more and more for its rapid response to the market and to meet the needs of customers. But the traditional virtual enterprise takes the enterprise unit as the basic research object, so it is difficult to respond quickly and effectively when the market demand changes, and lacks the necessary flexibility and flexibility. The characteristics of flexible organization of production planning coincide with the concept of virtual enterprise. This paper introduces the method of unit manufacturing to the construction and production operation of virtual enterprise. The implementation of the unit manufacturing method in the virtual enterprise not only improves the agility of the virtual enterprise effectively, but also expands the application space of the traditional unit production. It has certain positive significance and research value. According to the distribution of virtual enterprise resources and the characteristics of processing tasks, the concept model of virtual enterprise unit is constructed. According to certain principles and the technological process of virtual enterprise processing task, the task is decomposed, and the logical manufacturing unit LMUU corresponding to the intermediate task is formed, and the combination of each LMU forms the logical processing route LMP. Each LMU corresponds to multiple Agile Manufacturing Units (AMUUMUs) that can accomplish processing tasks, and LMU has a multi-mapping relationship with LMU, that is, a logical manufacturing unit (LMU) can be accomplished by multiple Agile Manufacturing Units (AMPs) AMUs. Each AMU may have the processing capabilities described by multiple LMUs. The EMPs of different manufacturing units are selected and ordered to form an executable processing route, and the optimal EMPs are sought through the consideration of optimization objectives such as quality, time and cost. Like the virtual enterprise, the unit manufacturing system of the virtual enterprise is formed with the appearance of the processing task and disappears with the completion of the task. In this paper, we analyze and study the unit manufacturing system of virtual enterprise from two aspects: the choice of resources and the reconfiguration of dynamic manufacturing cells. In the process of resource selection of virtual enterprise based on manufacturing cell, the influence of time, cost and quality on resource selection is considered, and the optimal selection model of resources is constructed in order to construct the optimal agile machining route. As the basic unit and executive layer of the virtual enterprise unit manufacturing system, the agility and flexibility of the dynamic manufacturing cell is very important to the whole system, so it needs to be reconfigurable continuously according to the change of the task. The reconfiguration of dynamic manufacturing cells is essentially the selection and clustering of resources. The number of workpieces to be processed in different processing paths is determined by the selection of resources. Then, the Kim's clustering algorithm is used to cluster the workpiece matrix of the equipment, and the dynamic manufacturing unit is reconstructed. Finally, according to the actual situation of a mould enterprise, through the analysis of the problems existing in the enterprise, the reconfiguration of the processing process and manufacturing unit of the enterprise is completed, and the effect before and after the reconfiguration is evaluated by the comprehensive evaluation model. The effectiveness and necessity of reconstruction are illustrated.
【學位授予單位】：江蘇科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：F426.4;F274

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