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1.
OPTIMIZACIJA MEDFAZNIH ZALOG V PROIZVODNEM PODJETJU GRAMMER AUTOMOTIVE SLOVENIJA D.O.O.
Matej Cerjak, 2010, diplomsko delo

Opis: Namen diplomske naloge je predstaviti JIT »just in time« metode in tehnike, ki jih zahteva sodoben proizvodni proces za ohranitev konkurenčnosti podjetij na trgu. Teoretični del naloge se navezuje na splošne logistične procese v proizvodnem podjetju, na pomembnost zalog ter gospodarjenja z materialom. Zaloge so za poslovanje podjetja pomemben faktor. Zadostna zaloga omogoča nemoten proizvodni proces, hkrati pa je na zalogo vezan velik del kapitala, ki proizvodni proces draži. V zaključku teoretičnega dela so opisani alternativni modeli planiranja, tu se naloga osredotoča na kanban sistem dispečiranja. V nadaljevanju je predstavljeno podjetje Grammer Automotive Slovenija, d. o. o., z njegovo organizacijsko strukturo. Podjetje je s svojo dejavnostjo del dobaviteljske verige v avtomobilski industriji in uspešno deluje v Sloveniji že dobrih petnajst let. V tem delu je narejen posnetek stanja materialnega toka ter analiza, na podlagi katere smo uvedli spremembe za izboljšanje obstoječega procesa s kanban dispečiranjem delovnega mesta.
Ključne besede: Grammer Automotive Slovenija, d. o. o., MRP, JIT (just in time), kanban
Objavljeno: 03.01.2011; Ogledov: 2682; Prenosov: 265
.pdf Celotno besedilo (1,68 MB)

2.
Asymmetric and nonlinear impact of attribute-level performance on overall customer satisfaction in the context of car servicing of four European automotive brands in Slovenia
Slavko Ažman, Boštjan Gomišček, 2012, izvirni znanstveni članek

Opis: The paper examines the nonlinearity and asymmetry between the satisfaction with individual attributes of the service and overall satisfaction in the context of passenger car servicing in Slovenia. The data set that was analysed was acquired from a regular survey on customer satisfaction with vehicle repair and maintenance services of four European automotive brands in Slovenia, carried out in 2005 and 2006 through 12,941 computer-assisted telephone interviews. Specifically, this study utilizes regression analysis in order to test the asymmetry and nonlinearity of the link between the attribute-level performance and overall satisfaction. The results show that the influence of dissatisfaction is different from the influence of satisfaction, and that the influence of satisfaction on overall satisfaction is greater than the influence of dissatisfaction. The results also show that nonlinearity is applicable to certain attributes of vehicle servicing, but not to all. We can sum up that precise knowledge of the correlation between the attribute-level performance of vehicle servicing and overall service satisfaction is important. Results show that caution must be employed in the evaluation of the importance of individual attributes on overall satisfaction, since the importance can change depending on the level of satisfaction. It appears that focusing on improving satisfaction is more important than focusing on lessening dissatisfaction. Results also show that the improvement of attribute-level performance offers diminishing returns; therefore, selective investment in activities for increasing customer satisfaction is sensible if satisfaction levels are already relatively high.
Ključne besede: service quality, customer satisfaction, automotive industry, nonlinearity, asymmetry
Objavljeno: 06.06.2012; Ogledov: 1961; Prenosov: 223
.pdf Celotno besedilo (1,44 MB)
Gradivo ima več datotek! Več...

3.
Cooling analysis of a light emitting diode automotive fog lamp
Matej Zadravec, Matjaž Ramšak, Jure Ravnik, Matjaž Hriberšek, Jernej Slanovec, 2017, izvirni znanstveni članek

Opis: Efficiency of cooling fins inside of a light emitting diode fog lamp is studied using computational fluid dynamics. Diffusion in heat sink, natural convection and radiation are the main principles of the simulated heat transfer. The Navier-Stokes equations were solved by the computational fluid dynamics code, including Monte Carlo radiation model and no additional turbulence model was needed. The numerical simulation is tested using the existing lamp geometry and temperature measurements. The agreement is excellent inside of few degrees at all measured points. The main objective of the article is to determine the cooling effect of various heat sink parts. Based on performed simulations, some heat sink parts are found to be very ineffective. The geometry and heat sink modifications are proposed. While radiation influence is significant, compressible effects are found to be minor.
Ključne besede: heat transfer, cooling of electronic devices, cooling fins, light emitting diode automotive lamp, compressible flow
Objavljeno: 07.07.2017; Ogledov: 533; Prenosov: 225
.pdf Celotno besedilo (2,09 MB)
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4.
Validation test plan for relays in avtomotive industry
Urban Cotič, 2017, magistrsko delo

Opis: The master’s thesis discusses different approaches how to assure the quality and reliability of high voltage contactors in automotive industry. In the beginning, the history of the development is described, followed by basic knowledge about materials and magnetic theory used in relays. The main part of the thesis is tests defying to qualify the relays for usage in automotive industry. There are different tests, divided in different groups. Second important part is reliability prediction according to standards used in this area of business. Reliability prediction and calculation of failure rate on different contactors are described in last chapters. Calculation also included influence of different factors on life span of the parts. In conclusion, the results are commented and proposal for development is given based on results of the research.
Ključne besede: Automotive industry, high voltage contactors, testing, reliability, failure rate
Objavljeno: 07.02.2018; Ogledov: 521; Prenosov: 48
.pdf Celotno besedilo (1,89 MB)

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