Browsing by Subject "Work design."

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    Assembly line balancing problem: Comparison of some heuristic procedures
    (1989) Mete, Hasan Ali
    Assembly line balancing problem can be defined as assigning tasks to an ordered sequence of stations, such that the precedence relations among the tasks are satisfied and some pel- hormarice measure (e.g. toLal idle tune; is opLimized- in this work, some heuristic methods are examined and compared for an 11-element assembly line balancing problem for fixed F-ratios and cycle times. The results of the experiments show that there is no significant difference between the four selected heuristic procedures.
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    On the distribution of throughput of transfer lines
    (1998) Deler, Bahar
    A transfer line corresponds to a manufacturing system consisting of a number of work stations in series integrated into one system by a common transfer mechanism and a control system. There is a vast literature on the transfer lines. However, little has been done on the transient analysis of these systems by making use of the higher order moments of their performance measures due to the difficulty in determining the evolution of the stochastic processes under consideration. This thesis examines the transient behavior of relatively short transfer lines and derives the distribution of the performance measures of interest. The proposed method based on the analytical derivation of the distribution of throughput is also applied to the systems with two-part types. An experiment is designed in order to compare the results of this study with the state-space representations and the simulation. They are also interpreted from the point of view of the line behavior and design issue. Furthermore, extensions are briefly discussed and directions for future research are suggested.
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    Robust solutions to single and multi-period machine layout problems with interval flows
    (1997) Tüfekçi, Özgür Atilla
    Design clecisous are genevcUly given in the early stages when there is a great deal of inexactness in the data gathered. In this study, we consider the plant Uiyout problem witli inexactness in material flow quantities with the aim of designing robust layouts. Material flow quantities are assumed to lie in a priori specified intervals based, for example, on low ¿md high demands. The robustness criterion we use is to minimize the maximum I’egret. We extend our work to the multi-period case where a distinction is made between reversible and irreversible layout decisions.