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Simulated Verification of Complex Technology Project
Varjan, Matúš ; Hrubý, Jiří (oponent) ; Lenort,, Radim (oponent) ; Rumíšek, Pavel (vedoucí práce)
In the introduction, doctoral thesis as a complex technological project uses the summary title Stability of production. Stability of production is defined as a maintaining the required properties of the system over a given time period. Stability of production, based on the literature study included: – generally known systems and concepts, for example Process Stability, System Stability, Toyota Production System, Lean Manufacturing, etc. – less-known systems and concepts, for example Maintaining the fidelity of the production program, Stable order-sequence concept. The practical part of the doctoral thesis is focused on the less-known concept: Stable order-sequence. The task of the Stable order-sequence is to follow the sequence of orders given by the planned production program in the course of the production and at the end of production. Maintaining the sequence of the orders has a positive experience in the logistics activities between the final producer and its suppliers. As it was found by the planned experiment for a full factory plan, the sequence of orders in the material flow of original equipment manufacturer is influenced mainly by: – the cause of the removing orders from material flow, – the effect of the causes LIFO stack vs. branched material flow, – the effect of the causes LIFO stack vs. branched material flow vs. the removing from the material flow. By the analysis of Stable order-sequence, it was found that the methodology of the concept contains deficiencies. It does not state how to choose for example the size of the time period, time interval, data editing etc. By this lack, the subject can skew the results in the evaluation of the indicator PFT0 up to 4 %. Or by using of suitable adjustment, the value of the indicator PFT0 can be improved more than 50 %. To test the concept of a Stable order-sequence in practice has been designed technological project with the support of discrete-event simulation. It was about the implementation of new management logic to the stack behind the welding of original equipment manufacturer. The new logic of management was designed with an emphasis on Stable order-sequence concept, to arrange the orders in process according to the planned sequence. On the base of the functionality verification of the new stack logic, it was found that the logic affects the sequence of the orders, but not fundamentally. In tracking the hourly intervals for 25th calendar week 2013, the value of PFT0 was not improved in 37 cases, the value remains in 30 cases and the value was improved by the value of the median 18,68 % in 30 cases orders.
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Stříhání součástí s vyšší přesností
Varjan, Matúš ; Matušková, Jarmila (oponent) ; Žák, Ladislav (vedoucí práce)
Projekt vypracovaný v rámci bakalárskeho štúdia oboru B2307-00 predkladá návrh technológie výroby účiastky, výstrižku, strihaním z konštrukčného nelegovaného ocežového plechu 12010. Na základe literárnej štúdie problematiky presného strihania a výpočtov bolo navrhnuté strihanie v nástroji určenom pre presné strihanie s obvodovou hranou. Nástroj má pohyblivý strižník a pevnú prítlačnú dosku. Nástroj je konštruovaný pre umiestnenie v trojčinnom lise SCHMID HSR 100, s nominálnou silou 1000 kN.
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Stříhání součástí s vyšší přesností
Steiner, Jaromír ; Varjan, Matúš (oponent) ; Žák, Ladislav (vedoucí práce)
Hlavním tématem práce je technologie přesného stříhání s nátlačnou hranou, která byla zvolena jako nejvhodnější řešení. Cílem je návrh a zhodnocení technologičnosti zvolené sou-části, návrh konstrukčního řešení nástroje a ekonomické vyhodnocení celého projektu. Řetězové kolo bylo navrženo z konstrukční oceli 11500, parametry byly zhodnoceny jako vhodné. Nástroj byl navržen jako postupový pro jednořadé rozvržení výstřižků s pohyblivým střižníkem, nátlačná hrana je umístěna jak na střižnici tak na přidržovači. Lis byl zvolen na základě vypočtené střižné síly, od firmy Feintool. Při zvolené dávce 500000 ks byla vypočtena cena jednoho výstřižku 5,1 Kč.
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Návrh podpory řízení výrobních procesů v informačním systému
Pešl, Jan ; Varjan, Matúš (oponent) ; Videcká, Zdeňka (vedoucí práce)
Tato bakalářská práce se zabývá návrhem podpory řízení výrobních procesů v informačním systému firmy Fulgur, spol. s r.o. Cílem práce je navrhnout změny v informačním systému firmy, které by přispěly ke zvýšení efektivity výrobního procesu. Teoretická část se zaměřuje na vymezení pojmů souvisejících s popisovanou problematikou Analytická část má za úkol popsat současné fungování procesů souvisejíc9ch s průchodem zakázky podnikem. Návrhová část zahrnuje popis a specifikaci jednotlivých modulů a funkcí IS, které by měli být implementovány ke zvýšení produktivity výrobního procesu.
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Štíhlé řízení vybrané části výrobního systému
Schwarz, Adam ; Varjan, Matúš (oponent) ; Bartošek, Vladimír (vedoucí práce)
Práce je zaměřena na zlepšení konceptu štíhlého řízení ve vybraném strojírenském podniku, kde jsou s pomocí vybraných metod a nástrojů provedeny analýzy k odhalení současných problémů. Data jsou následně zpracována a na základě nich jsou navržena opatření ke změně s důrazem na minimalizaci míry plýtvání časem a náklady a zvýšení efektivity výroby.
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Simulated Verification of Complex Technology Project
Varjan, Matúš ; Hrubý, Jiří (oponent) ; Lenort,, Radim (oponent) ; Rumíšek, Pavel (vedoucí práce)
In the introduction, doctoral thesis as a complex technological project uses the summary title Stability of production. Stability of production is defined as a maintaining the required properties of the system over a given time period. Stability of production, based on the literature study included: – generally known systems and concepts, for example Process Stability, System Stability, Toyota Production System, Lean Manufacturing, etc. – less-known systems and concepts, for example Maintaining the fidelity of the production program, Stable order-sequence concept. The practical part of the doctoral thesis is focused on the less-known concept: Stable order-sequence. The task of the Stable order-sequence is to follow the sequence of orders given by the planned production program in the course of the production and at the end of production. Maintaining the sequence of the orders has a positive experience in the logistics activities between the final producer and its suppliers. As it was found by the planned experiment for a full factory plan, the sequence of orders in the material flow of original equipment manufacturer is influenced mainly by: – the cause of the removing orders from material flow, – the effect of the causes LIFO stack vs. branched material flow, – the effect of the causes LIFO stack vs. branched material flow vs. the removing from the material flow. By the analysis of Stable order-sequence, it was found that the methodology of the concept contains deficiencies. It does not state how to choose for example the size of the time period, time interval, data editing etc. By this lack, the subject can skew the results in the evaluation of the indicator PFT0 up to 4 %. Or by using of suitable adjustment, the value of the indicator PFT0 can be improved more than 50 %. To test the concept of a Stable order-sequence in practice has been designed technological project with the support of discrete-event simulation. It was about the implementation of new management logic to the stack behind the welding of original equipment manufacturer. The new logic of management was designed with an emphasis on Stable order-sequence concept, to arrange the orders in process according to the planned sequence. On the base of the functionality verification of the new stack logic, it was found that the logic affects the sequence of the orders, but not fundamentally. In tracking the hourly intervals for 25th calendar week 2013, the value of PFT0 was not improved in 37 cases, the value remains in 30 cases and the value was improved by the value of the median 18,68 % in 30 cases orders.
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Simulated verification of complex technology project
Varjan, Matúš ; Hrubý, Jiří (oponent) ; Lenort,, Radim (oponent) ; Rumíšek, Pavel (vedoucí práce)
In the introduction, doctoral thesis as a complex technological project uses the summary title Stability of production. Stability of production is defined as a maintaining the required properties of the system over a given time period. Stability of production, based on the literature study included: – generally known systems and concepts, for example Process Stability, System Stability, Toyota Production System, Lean Manufacturing, etc. – less-known systems and concepts, for example Maintaining the fidelity of the production program, Stable order-sequence concept. The practical part of the doctoral thesis is focused on the less-known concept: Stable order-sequence. The task of the Stable order-sequence is to follow the sequence of orders given by the planned production program in the course of the production and at the end of production. Maintaining the sequence of the orders has a positive experience in the logistics activities between the final producer and its suppliers. As it was found by the planned experiment for a full factory plan, the sequence of orders in the material flow of original equipment manufacturer is influenced mainly by: – the cause of the removing orders from material flow, – the effect of the causes LIFO stack vs. branched material flow, – the effect of the causes LIFO stack vs. branched material flow vs. the removing from the material flow. By the analysis of Stable order-sequence, it was found that the methodology of the concept contains deficiencies. It does not state how to choose for example the size of the time period, time interval, data editing etc. By this lack, the subject can skew the results in the evaluation of the indicator PFT0 up to 4 %. Or by using of suitable adjustment, the value of the indicator PFT0 can be improved more than 50 %. To test the concept of a Stable order-sequence in practice has been designed technological project with the support of discrete-event simulation. It was about the implementation of new management logic to the stack behind the welding of original equipment manufacturer. The new logic of management was designed with an emphasis on Stable order-sequence concept, to arrange the orders in process according to the planned sequence. On the base of the functionality verification of the new stack logic, it was found that the logic affects the sequence of the orders, but not fundamentally. In tracking the hourly intervals for 25th calendar week 2013, the value of PFT0 was not improved in 37 cases, the value remains in 30 cases and the value was improved by the value of the median 18,68 % in 30 cases orders.
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Optimalizace materiálového toku ve výrobní společnosti
Novakov, Ivan ; Horník, Patrik (oponent) ; Varjan, Matúš (vedoucí práce)
Bakalárska práca spracováva optimalizáciu materiálového toku vo výrobnej spoločnosti. Práca popisuje, na základe znalosti z odbornej literatúry, materiálový tok, základné pojmy súvisiace s materiálovým tokom, metódy Kanban, Conwip a základné metódy skladovania. V nasledujúcej časti je práca zameraná na analýzu súčasného stavu konkrétneho produktu, možné návrhy optimalizácie a ich dopad z technicko-ekonomického hľadiska.
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