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Ítem Analytical study of the Fishbone Warehouse layout(Taylor & Francis, 2012-11-19) Martínez, Héctor JairoThe purpose of this paper is to study the Fishbone Warehouse layout. Fishbone layouts are non-traditional designs for warehouses that have shown to be more efficient under unit-load operations. This paper presents an analytical study of the design from an optimisation point of view. The authors gain an insight into the characteristics of the layout and present alternatives for different situations of interest in industrial environments. Finally, the authors compare the performance of Fishbone and traditional designs; presenting a formal conception of the expected savings. The authors focus on finding optimal conditions for the most important characteristic of the Fishbone design, which is the slope of the diagonal cross-aisle. The design decisions are modelled as a non-linear optimisation problem and solved using both numerical and exact methods, depending on the most convenient analysis. In addition, the robustness of the results is presented and their practical implications discussed.Ítem El WIP como objetivo estratégico en la distribución de planta(Universidad Santiago de Cali, 2012-01-01) Rivera Cadavid, LeonardoThis paper presents a model to generate the layout of a facility, minimizing the work in process (WIP) for a production system that uses multiple material handling systems. Using WIP as an objective in a facility layout problem is a novel approach. WIP is an operating performance measure that impacts directly in the production costs, and is generally not considered in facility layout problems. As a result, we present a model to design facility layouts with a better WIP performance than the ones designed by a model with a single material handling systemÍtem Parámetros óptimos para geometría de bodegas no tradicionales(2012-08-29) Cardona, Luis FelipeTradicionalmente las bodegas han sido diseñadas bajo dos supuestos tácitos, los pasillos de picking son paralelos unos de otros y los pasillos atravesados son perpendiculares a los pasillos de picking. El Fishbone layout es un diseño no tradicional para bodegas de carga unitaria que replantea estos supuestos y logra mejorar la productividad aproximadamente en un 20%. Este proyecto desarrolla un estudio analítico del Fishbone layout, presentando alternativas para diferentes situaciones de interés en el sector real. El proceso de diseño se plantea como un problema de optimización no lineal y se concentra en la característica más importante del Fishbone layout, la pendiente del pasillo diagonal. Finalmente, el autor presenta una expresión analítica para la pendiente del pasillo diagonal y un análisis de sensibilidad que muestra la robustez del diseño.