20.500.12556/DKUM-61177 Krajšanje časa izvedbe nalog z obstoječimi viri Shortening the time of task execution with existing resources Diplomsko delo podaja kratek pregled Kanban in Teorije omejitev ter tradicionalne proizvodnje (ki je vzeta kot osnova za poznejšo primerjavo doseženih rezultatov). Za izvedbo primerjave je vzet namišljen poslovni proces s petimi delovnimi mesti, kjer se primerjajo rezultati simulacij omenjenih treh konceptov. Za pridobivanje potrebnih podatkov simulacij je bil razvit enostaven simulator, ki izvaja simulacijo »igre s kockami« (angl. Dice Game). Izvedeno je bilo po 20 simulacij za vsak koncept, kjer se je vsaka simulacija izvajala 100 ciklov. Podatki vseh 60 simulacij so bili osnova za statistično obdelavo: časa izvedbe nalog, produktivnosti in zalog na vmesnih skladiščih (WIP). Analize so pokazale, da je produktivnost najvišja pri tradicionalni proizvodnji, vendar na račun visokega WIP na ozkem grlu (ang. CCR – Capacity Constrained Resource) in daleč najdaljšega časa izvedbe nalog. Tako Kanban kot Boben-vrv-blažilnik (ang. DBR – Drum Buffer Rope) sta pokazala stabilno in relativno nizko vmesno zalogo v procesu (WIP) in v primerjavi s tradicionalno proizvodnjo precej krajše čase izvedbe nalog, vendar na račun nižje produktivnosti. Ključna ugotovitev tega diplomskega dela je, da je nadzor nad količino izdelkov v procesu (WIP) pomembnejši kot stalna polna zasedenost vseh delovnih mest in preko nižjih vmesnih zalog znatno vpliva na odzivnost proizvodnje (krajši časi izdelave). Na simulatorju se je pokazalo, da je uvedba nadzora WIP enostavnejša pri Kanban, vendar nudi DBR preko naprednejšega upravljanja blažilca boljše rezultate pri pretočnosti sistema, hkrati pa z uvedbo dodatnih orodij Teorije omejitev kot npr. vročičnega diagrama pušča še precej prostora za izboljšave v prihodnje. This thesis introduces a short overview of Kanban and Theory of constraints and traditional manufacturing (which is taken as a base for subsequent comparison of achieved results). A made-up business process with five work places comparing the results of the three concepts mentioned was used to implement the comparison. A simple simulator, which implemented the Dice Game simulation, was developed to acquire necessary data. 20 simulations for each concept were completed with each simulation implemented for 100 cycles. The data of all 60 simulations were basis for statistical treatment: time used for task implementation, productivity and Work in Process (WIP). Analyses showed that productivity is at its highest with traditional manufacturing, but on the account of a high WIP at the Capacity Constrained Resource (CCR) and by far the longest time for task implementation. Kanban as well as Drum – Buffer – Rope (DBR) showed a stable and relatively low Work in Process (WIP) and shorter task implementation time compared to traditional manufacturing, but on the account of lower productivity. The key finding of this thesis is that control over the Work in Process (WIP) is more important than continuous full utilization of all work places and significantly impacts production responsiveness (shorter manufacturing time) through lower WIP. The simulator showed that introduction of WIP control is simpler with Kanban, but DBR offers better results at system fluidity through advanced management of a buffer, and at the same time it leaves much room for improvement in the future with the introduction of Fever Chart. simulacija tradicionalna proizvodnja Kanban Teorija omejitev primerjava Simulation Traditional production Kanban Theory of constraints comparison true true false [D. Zupančič] Slovenski jezik Angleški jezik Diplomsko delo 2016-07-26 14:52:37 2016-09-07 12:16:52 2022-06-25 03:08:06 2019-07-11 12:11:41 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 658.512.6(043.2) 20103446 URN:SI:UM:DK:4FAHI1VA VS_Zupancic_Dusan_2016.pdf VS_Zupancic_Dusan_2016.pdf 1 6BF002FE84D6D10CC727CEEECC461827 fa66ca872c765bcf33dfabb544d0b56cda7887eccfd207097fb394dcb2ec6a97 073cd110-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=98766 Fakulteta za strojništvo 0 0 0