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Simulering och optimering av produktionslinje
KTH, School of Industrial Engineering and Management (ITM), Production engineering.
2024 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Simulation and optimisation of a production line (English)
Abstract [sv]

Målet med detta projekt var att optimera produktionslinjen för att maximera antalet färdigställda artiklar som produceras. Projektet påbörjades med en planering och en undersökning av de verktygen som skulle användas så som simulering, lean och information relaterat till produktionslinjen. Därefter modellerades den i simulerings-verktyget utifrån den faktainsamlingen som utfördes och simuleringsmetoden. När modellen var klar utfördes experimentella tester för att undersökningar hur specifika faktorer så som strategiskt placerade buffertar och antalet operatörer påverkade effektiviteten på produktionslinjens bearbetning. Utifrån resultaten av dessa tester bestäms en optimal nivå för faktorerna som skall användas i full factorial design testerna. Med dessa tester utförda kunde det noteras att ingen optimering kunde utföras på produktionslinjen då simuleringen uppnådde endast 72% när målet för produktionslinjen är 75%. Istället gavs andra strategiska rekommendationer på vad företaget kunde göra för att öka effektiviteten på produktionslinjen. Dessa rekommendationer inkluderar, en tillfällig buffert, vänta ut de tillfälliga stoppen, åtgärda avvikande processteg och minska kassationerna.

Abstract [en]

The goal of this project was to optimize the production line to maximize the number of completed items produced. The project started with a planning and research of the tools which will be used such as simulation, lean principles, and information related to the production line. Thereafter, it was modelled in the simulation tool based on the data collection that was carried out and the simulation method. Once the model was ready, experimental tests were conducted to investigate how specific factors, such as strategically placed buffers and the number of operators, affected the efficiency of the production line's processing. Based on the results of these tests, an optimal level for the factors to be used in the full factorial design tests was determined. With these tests performed, it was noted that no optimization could be carried out on the production line as the simulation achieved only 72% efficiency when the target for the production line is 75%. Instead, other strategic recommendations were provided on what the company could do to increase the efficiency of the production line. These recommendations include, a temporary buffer, waiting out temporary stoppages, addressing deviant process steps, and reducing rejections.

Place, publisher, year, edition, pages
2024. , p. 48
Series
TRITA-ITM-EX ; 2024:296
Keywords [en]
Production line, efficiency, full factorial design, optimization, strategic recommendations
Keywords [sv]
Produktionslinje, effektiviteten, Full factorial design, optimering, strategiska rekommendationer
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-347744OAI: oai:DiVA.org:kth-347744DiVA, id: diva2:1869766
External cooperation
Scania CV AB
Supervisors
Examiners
Available from: 2024-06-13 Created: 2024-06-13

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CiteExportLink to record
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Citation style
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