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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/51961

    Title: 同步生產之多人工作站的生產線平衡問題之研究
    Other Titles: Simultaneous perspective-based assembly line balancing problem with multi-manned workstations
    Authors: 張東孟;Chang, Tung-meng
    Contributors: 淡江大學管理科學研究所博士班
    張紘炬;Chang, Horng-jinh
    Keywords: 組裝線平衡;同步生產;多人工作站;作業編碼系統;Assembly line balancing;Simultaneous Production;Multi-manned Workstation;Task Code System
    Date: 2010
    Issue Date: 2011-01-05 15:19:01 (UTC+8)
    Abstract: 生產線平衡是許多生產系統進行生產線設計時的重要主題。為了滿足顧客期望及不斷變化的市場需求,生產線產出率必須能因應產品需求的變動。然而生產線平衡將影響工廠的生產產能與生產資源配置等決策,進而決定產品生產線的產出率。傳統的生產線平衡問
    Assembly line balancing is an important subject of many production systems whenever the line design is performed. The output rate of the line must deal with
    the change in the demand of various products so as to satisfy the customers’expectation and the fluctuant market demands. However, assembly line balancing will affect the decisions on the capacity of a factory and the resource allocations, and then the output rate of the line is decided. In the traditional assembly line balancing problems, the assignment of tasks to an assembly line is in sequential way, and some different objectives are optimized under satisfying various constraints while performing a line balancing.
    Assembly lines with multi-manned workstations, where workers simultaneously perform different tasks on the same workstation, are widely used in producing large-sized products such as the case of vehicle’s final assembly. Therefore, this research considers the simultaneous production for tasks. That is, workers simultaneously perform same or different tasks on the same product and
    workstation in an assembly line. Whenever a simultaneous production is allowed for the entire tasks in an assembly line, the assembly line balancing problems become more complicated. In this paper, the mathematical optimization models for the assembly line balancing problems with multi-manned workstations are proposed under considering the simultaneous production, and the tasks assignments to a multi-manned workstation are performed in terms of the task
    routes of individual part. That is, the partial tasks belonging to a part, which are assigned into a multi-manned workstation, are performed by one worker. In
    Chapter 2, a statement of the problem we deal with is given, and some problems, such as the assignment of the common tasks, encountered in performing simultaneous tasks assignments are described. A coding system, Four-Position
    Code (FPC), is also proposed to re-code the tasks to tackle above issue.
    In this study, the single-model and mixed-model assembly line balancing problems are considered. Hence, the mathematical optimization models for the above-mentioned assembly line balancing problems with simultaneous production are proposed in Chapter 3 and Chapter 4, respectively. The objective functions of the proposed models are to minimize the number of workstations of the assembly line under the following constraints: assignment constraints, precedence constraints, cycle time constraints, and workstations constraints. And then, based on the optimal results, the number of workers is assigned to each workstation of the line, and the total idle rate of the line is also computed. In addition, the proposed models are further clarified by some illustrative examples, and simulation analyses for various cycle times and performance of the proposed model are also conducted.
    Appears in Collections:[管理科學學系暨研究所] 學位論文

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