Abstract
Positioning of the equipment of a manufacturing company is done foreseeing that it will remain fixed for a long time. This is because changes in the plant layout are thought to be costly, as they involve redesigning equipment support services, developing new foundations, using heavy machinery to move equipment, and causing non-productive time at the plant. However, the increased competition due to globalization, lead us to consider the alternative of making modifications to the layout more frequently to improve productivity. Changing the position of the equipment can be facilitated by specifying smaller mobile process equipment or by anticipating the availability of services at different points in the workshop and the existence of cranes or other means of transportation. These forecasts, logically, result in a greater investment in elements that, at least initially, do not generate any profit.
 This work shows the evaluation of the feasibility of modifying the positions of the equipment when there are variations in the probability distribution in production speeds. This evaluation is carried out using decision trees and process simulation. The case study addressed consists of a generic production line with serial workstations. Jobs arrive at the first computer and join their product on hold if space is available, otherwise the job is lost. In the same way, the product on hold of the other teams are limited in size, and when a product on hold is full, the team behind stops until there is space available. Due to the use, the speeds of the equipment are changing with respect to the ones they had when new: the process times are increasing and / or becoming more variable. To improve productivity under the new process speeds, the space between the equipment can be modified, however, during this change, production must be suspended.
 This work shows how, by simulating processes and decision trees, it is possible to determine the ranges of values of the suspension time and the cost of transport for which it is convenient to make changes in the spacing of the equipment.
Highlights
The design of the layout of a manufacturing company is carried out with the intention that it be maintained for a minimum of three years of operation since the changes in the plant are costly, as they may involve the redesign of the support services for the equipment, elaboration of new foundations, use of heavy machinery for the movement of equipment and non-productive time in the plant [1].plant layout can be designed with it in mind to some degree easy to modify: Smaller, more mobile process equipment, redundant production lines can be defined.The increasing uncertainty about the production mixes brought about by globalization and the increase in competition, force us to III
Design is a very important topic when talking about a company, you will find the disposition or the consistent design in the location of the different sectors or departments in a factory or service facilities, as well as the equipment within them [3]
The convenience of maintaining Layout 2 instead of 1 due to this quality depends on the probability distributions of the time between decompositions and the repair time, as well as the consequence of not having production or seeing it diminished
Summary
Design is a very important topic when talking about a company, you will find the disposition or the consistent design in the location of the different sectors or departments in a factory or service facilities, as well as the equipment within them [3]. The purpose pursued with the design analysis is an optimal allocation of the plant space based on the resources used. The location of resources and their interaction is a decision of vital importance for the success of the Production System. The space becomes an important analysis of the production processes. The before mention covers every part of the production process, from the moment the raw materials are received, to the shipment of the finished product. This process must be efficient and economical. The benefits when is flexible design is that it can be efficiently practical, optimizing space improves station flow and increases productivity
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