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汽車白車身焊裝車間混流生產(chǎn)線平衡研究

發(fā)布時間:2018-04-27 08:41

  本文選題:混流生產(chǎn)線 + 生產(chǎn)線平衡 ; 參考:《沈陽大學》2015年碩士論文


【摘要】:世界經(jīng)濟全球化的發(fā)展及客戶個性化需求的不斷加劇,使得企業(yè)必須具備良好的柔性,在生產(chǎn)成本最低、質量最優(yōu)的前提下,以最短的交貨時間來滿足客戶個性化的需求;炝魃a(chǎn)是指在基本上不改變或較少地改變現(xiàn)有生產(chǎn)設備的條件下,對生產(chǎn)線進行合理的組織和調度優(yōu)化,實現(xiàn)多品種產(chǎn)品的柔性化共線生產(chǎn)。本文以BBA公司汽車白車身焊裝車間為研究對象,利用相關IE技術、價值增值生產(chǎn)系統(tǒng)(Value-added production system,VPS)理論和數(shù)學算法,研究了其混流生產(chǎn)線平衡和排序的優(yōu)化技術。首先,本文介紹了混流生產(chǎn)線平衡理論,以及白車身30U焊裝車間、焊裝線的現(xiàn)狀,詳細論述了白車身焊裝線的工藝流程及混流生產(chǎn)模式,并給出其混流車間布置圖。其次,針對其中兩條焊裝線中節(jié)拍不均衡的現(xiàn)象,利用IE技術中的山積表、5W1H提問法和ECRS等分析工具對其進行優(yōu)化改進,并應用VPS理論逐一論述了物流超市和拖車發(fā)運點的優(yōu)化項目;針對混流生產(chǎn)線投產(chǎn)排序問題,建立了以物料消耗平準化和裝配線的超載時間最小化為優(yōu)化目標的數(shù)學模型,設計一種改進粒子群優(yōu)化算法,將其應用于精整線排序問題的實例中。最后,通過Witness仿真軟件分別模擬合車線平衡前后和精整線投產(chǎn)排序的生產(chǎn)裝配過程,驗證了該改善方法的可行性和可靠性。本文研究中所提出的各種優(yōu)化技術和方法,不僅對汽車白車身混線平衡和排序問題的優(yōu)化具有理論指導作用,也能為以后其他類似的混流生產(chǎn)線平衡研究提供借鑒和參考意義。
[Abstract]:With the development of the world economic globalization and the increasing demand of customers' individuation, enterprises must have good flexibility and satisfy the customer's individualized demand with the shortest delivery time under the premise of the lowest production cost and the best quality. Mixed-flow production refers to the flexible collinear production of multiple products under the condition that the existing production equipment is basically not changed or changed less, and the production line is organized and optimized reasonably in order to realize the flexible collinear production of many kinds of products. In this paper, the author takes the automobile body welding workshop of BBA Company as the research object, using the related IE technology, the theory and mathematical algorithm of Value-added production system VPSs, studies the optimization technology of the balance and sequencing of the mixed flow production line. Firstly, this paper introduces the balance theory of mixed-flow production line, and the present situation of 30U welding workshop and welding line of BIW, discusses in detail the technological process and mixed-flow production mode of BIW welding line, and gives the layout diagram of the mixed-flow workshop. Secondly, aiming at the phenomenon of unbalanced beat in two welding lines, the paper optimizes and improves it by using the analytical tools such as mountain product table 5W1H questioning and ECRS, which are used in IE technology. The optimization items of logistics supermarket and trailer delivery point are discussed one by using VPS theory, aiming at the scheduling problem of mixed-flow production line, a mathematical model with material consumption leveling and overloading time minimization of assembly line as the optimization goal is established. An improved particle swarm optimization (PSO) algorithm is designed and applied to an example of finishing line scheduling problem. Finally, the Witness simulation software is used to simulate the production and assembly process before and after the line balance and the finishing line put into operation respectively, which verifies the feasibility and reliability of the improved method. The various optimization techniques and methods proposed in this paper can not only provide theoretical guidance for the optimization of the hybrid line balance and sequencing problems of the automobile body, but also provide reference and reference for other similar hybrid production line balance studies in the future.
【學位授予單位】:沈陽大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:U468.23

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