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Endüstri Mühendisliği Bölümü Yayın Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/279

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Browsing Endüstri Mühendisliği Bölümü Yayın Koleksiyonu by Author "17931"

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    Citation Count: Karabak, Funda...et al. "An optimization model for worker assignment of a mixed model vehicle production assembly line under worker mobility", Proceedings of the 41st International Conference on Computers & Industrial Engineering, pp. 483-490, 2011.
    An optimization model for worker assignment of a mixed model vehicle production assembly line under worker mobility
    (2011) Karabak, Funda; Güner, Nizamettin Doğan; Satır, Benhür; Kandiller, Levent; Gürsoy, I.; 54700; 17931
    In this study, we consider the problem of worker assignment in a mixed model vehicle production assembly line. In particular, we focus on large size vehicles like busses and trucks that have multi zones in which workers can perform their assigned tasks simultaneously. This situation requires balancing the workloads of workers assigned in a certain set of workstations. Over the assembly line, it is allowed that workers may change their workstations during the same cycle. Moreover, each worker has a certain skill level which configures the possible set of tasks to be undertaken. Scale of the product, worker mobility and skill differences make the studied problem complicated. We propose a worker assignment model and develop a heuristic algorithm whose performance is to be evaluated against the optimal seeking methods in terms of small sized problems. We report on the validation of our heuristic algorithm in real …
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    Citation Count: Güner, Funda; Kellegöz, T.; Toklu, B. (2017). "Multi-manned assembly line balancing problems with sequence-dependent setup times", Proceedings of International Conference on Computers and Industrial Engineering, CIE, Lisbon, 11 October 2017 through 13 October 2017.
    Multi-manned assembly line balancing problems with sequence-dependent setup times
    (2017) Güner, Funda; Kellegöz, T.; Toklu, B.; 17931
    In the production of large-size products (such as automobiles, buses, trucks etc.), designing assembly lines with multi-manned workstations may provide decreasing number of total workstations, requirement of large plant area and product flow time. Depending on the characteristics of the tasks about to be started and the one just completed on the same worker, setup times may be significant. Therefore, in some real life situations, it is possible to see setup times between tasks processed successively. In this study, assembly line balancing problems with multi-manned workstations and sequence dependent setup times are addressed. The formal definition of the problem is firstly presented. Then, its mixed integer programming formulation and is developed. In the computational study, by using these formulations, a set of test instances is solved, and results are provided.