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Abstract: Zaključno delo obravnava pomen ocene prizadevnosti pri normativnih časih. Iz posnetkov vaje narejenih v Laboratoriju za načrtovanje proizvodnih sistemov, FS, sem izdelal oceno prizadevnosti različnih oseb, pri različnih hitrostih dela robota. Ocenjeval sem osebe, ki so vajo izvajale 30 krat pri hitrosti robota 60, 75 in 100 %. Za vsako hitrost sem izračunal korelacijski koeficient in občutljivost. Cilj naloge je izvesti meritve ocene prizadevnosti v laboratoriju, analizirati rezultate in podati zaključke. Na koncu sem izvedel meritev še v programskem paketu Normar 3.0 in podal primerjavo.
Keywords: ocena prizadevnosti, normativni čas, študij dela
Published in DKUM: 09.10.2024; Views: 0; Downloads: 6
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Abstract: Diplomsko delo temelji na opisu postopkov, ki sem jih uporabil pri predelavi vodil podajalne glave ter analizi slike delovnega dne dela, ki ga je opravljal delavec pri določenih postopkih predelave. Meritve sem opravil s pomočjo programa Normar 3.0. V diplomskem delu bodo podrobneje predstavljeni postopki predelave, kot so razrez materiala, CNC rezkanje, varjenje, montaža in barvanje. Prav tako pa bo predstavljena tudi analiza pridobljenih rezultatov treh izvedenih meritev delavčevega dne ter moje ugotovitve in rešitve.
Keywords: CNC rezkanje, slika delovnega dne, REFA, CAD, CAM
Published in DKUM: 20.09.2024; Views: 0; Downloads: 11
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Abstract: The work-sampling method makes it possible to gain valuable insights into what is happening in production systems. Work sampling is a process used to estimate the proportion of shift time that workers (or machines) spend on different activities (within productive work or losses). It is estimated based on enough random observations of activities over a selected period. When workplace operations do not have short cycle times or high repetition rates, the use of such a statistical technique is necessary because the labor sampling data can provide information that can be used to set standards. The work-sampling procedure is well standardized, but additional contributions are possible when evaluating the observations. In this paper, we present our contribution to improving the decision-making process based on work-sampling data. We introduce a correlation comparison of the measured hourly shares of all activities in pairs to check whether there are mutual connections or to uncover hidden connections between activities. The results allow for easier decision-making (conclusions) regarding the influence of the selected activities on the triggering of the others. With the additional calculation method, we can uncover behavioral patterns that would have been overlooked with the basic method. This leads to improved efficiency and productivity of the production system.
Keywords: work sampling, observations, analysis, proportions, correlations, interdependence between activities
Published in DKUM: 09.05.2024; Views: 204; Downloads: 15
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Abstract: Veliko ljudi se ne zaveda, da določene kripto valute poleg naložbenega potenciala ponujajo praktično uporabo v resničnem svetu. V magistrskem delu obravnavamo proces razvoja in uvajanja novega produkta na kripto borzi, oblikovanje terminskega plana ter načine uporabe tehnologije, ki jo produkt ponuja na področju gospodarstva in drugih panog. Analiza bo temeljila na ocenjevanju kakovosti in tveganja, standardizaciji pristopov, skladnosti z zakoni in predpisi ter objektivne predstavitve potencialnih produktov. Analiziral bom Hedero (HBAR) in predstavil potencialne načine implementacije njene patentirane tehnologije Hashgraph. Prav tako bomo izvedli primerjavo uporabniške izkušnje med izbranimi kripto borzami. V magistrskem delu bomo preverili, kaj vse zajema proces uvajanja novega produkta na kripto borzi, ali lahko implementacija tehnologije blokovnih verig podjetju prinese konkurenčno prednost na trgu in na kaj je potrebno biti pozoren pri izbiri kripto borze.
Keywords: kripto sredstva, uvajanje novega produkta, kripto borza, tehnologija, kakovost, tveganje, pravila in zakoni, načini implementacije, uporabniška izkušnja
Published in DKUM: 20.09.2023; Views: 337; Downloads: 33
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Abstract: This study presents an approach to solving the assembly line balancing problem (ALBP) using the Methods-Time Measurement (MTM) time standard and simulation software. ALBP is a common problem in manufacturing where a set of tasks with fixed times must be assigned to a series of sequential workstations in order to minimize the total idle time and reduce the assembly cost per product. This study uses MTM, a widely used production process scheduling method, to create a new time analysis of an assembly process that was previously balanced using the Work-Factor method and time study. This literature review shows that there are a lack of combinations of updated time analyses with newer simulation approaches in the current literature, and this was the motivation for the present work. An assembly line simulation was performed using Simio software to evaluate different design options and operating scenarios. The results show that the use of MTM and simulation can help minimize idle time and improve assembly line performance, thereby reducing costs and increasing efficiency. This study shows that the approach of using MTM and simulation is effective in solving ALBP and is a useful tool for manufacturing companies to improve the performance of their assembly lines and reduce costs.
Keywords: optimization, production planning, assembly line, MTM time standard, simulation, industry 4.0
Published in DKUM: 23.05.2023; Views: 533; Downloads: 88
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