Modeling and optimization vof manufacturing processes using computer simulations

U ovom diplomskom radu opisani su koraci simulacijskog procesa, prednosti i nedostaci metoda simulacije te primjena računalnih simulacija. Metode simulacije su klasificirane i detaljnije su opisane značajke svake metode, s naglaskom na simulaciju diskretnih događaja koja se primjenjuje za potrebe ovog rada. Na temelju osmišljenog proizvodnog procesa, namijenjenog za obradu tri vrste proizvoda koji se zatim spajaju u jedan finalni proizvod, izrađen je simulacijski model. Ukupno je korišteno deset proizvodnih kapaciteta. U proizvodnom sustavu su za prijenos jedinica proizvoda, rad na proizvodnim kapacitetima i popravak proizvodnih kapaciteta u slučaju pojave kvara zaduženi radnici. Za izradu simulacijskog modela korišten je program Tecnomatix Plant Simulation i u radu su detaljno objašnjeni koraci izrade simulacijskog modela. Nakon verifikacije i validacije modela, provedeni su simulacijski eksperimenti pomoću kojih se odredio optimalan broj radnika, a zatim i optimalna veličina jediničnih serija proizvoda s obzirom na vrijeme završetka proizvodnje.This master thesis describes the steps of the simulation process, the advantages and disadvantages of the simulation method, and the application of computer simulations. The simulation methods are classified and the characteristics of each method are described in more detail, focusing on the discrete event simulation applied for the purpose of this thesis. A simulation model was created based on the designed production process, which is intended for processing three types of products, which are combined into a final product. A total of ten production capacities were used. In the production system, workers are responsible for transferring product units, processing on production capacities and repairing production capacities in case of malfunction. The Tecnomatix Plant Simulation program was used to create the simulation model, and the individual steps for creating the simulation model are explained in detail in this thesis. After verification and validation of the model, simulation experiments were conducted to determine the optimal number of workers and the optimal size of the unit batch of products in terms of the completion time of production