The objective of this paper is to develop an accredited computer simulation model for an assembly workshop of the largest electricmotors manufacturer in Iran. To achieve the above objective, the workshop was visited several times.
Moreover, the processes and operations of the workshop in general and each
workstation in particular were studied. The data related to process times, defectives nd scraps, repair and maintenance and production rates were collected by cooperation of the Industrial Engineering unit and by referring to historical data and time studies. Conceptual models of the workshop were developed through flow process chart,
logic diagram and schematic diagram. In addition, station technical sheets. are designed to illustrate the main
characteristics of each workstation. A computer simulation was developed by Slamsystem simulation language. The outputs and structures of the model were verified and validated against the actual
system. Also, a t-test was used to compare the outputs of the system being studied with that of simulation model. The Industrial Engineering unit of the system
also accredited the model. Finally, a set of optimizing alternatives based on sensitivity analysis was proposed to the management. The simulation methodology has several benefits for the workshop. The past, present and future of the system can be analyzed and second, the effects of specific
parameters such as increased demand can
be easily evaluated. Furthermore, before
any additional investment or making physical changes in the workshop, the effects of various changes may be predicted.
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