|
| |
|
|
Computational analysis of a car axle arm opening
Procházka, Vojtěch ; Kubík, Petr (referee) ; Petruška, Jindřich (advisor)
This thesis is focused on behavior of control arm opening with bushing pressed in. The tested component is a part of control arm of a car. The parts were tested in tensile and compressive strength. Real experiments were measured by optical system Aramis during the testing to determine deformations of the part. These tests are also modeled by a finite element method using an Abaqus software. In GOM Correlate software is created full-field comparison of deformation results from Aramis and FEA. Based on this comparison computational model is calibrated. Sensitivity analysis is performed at the end of the thesis.
|
|
|
The introduction of lean manufacturing into an engineering company
Procházka, Vojtěch ; Sedlák, Josef (referee) ; Jaroš, Aleš (advisor)
The diploma thesis is focused on implementation of lean production through using Lean Six Sigma method into an engineering company, producing cable harnesses for the automotive industry, mainly for trucks. The aim of the project is to increase production capacity by 25 %, reduce wastage rate to 3 % and design a new layout of production areas. The budget of this project is 3 million CZK. The production was slimmed down using the 5S methodology. To meet the aim of the project, three new machines had to be bought. The steps have resulted in a saving of 64 CZK per piece, which means a return on investment in about 8 months.
|
|
|
Production of air filter cover
Procházka, Vojtěch ; Žák, Ladislav (referee) ; Podaný, Kamil (advisor)
The thesis is concerned with the concept of an air filter cover production .The component has a cylindrical shape with a circular protrusion and a hole in the bottom. It is made of a steel sheet 11 320 with the thickness 1 mm. Considering the production volume of 20,000 units per year, it was chosen as the most suitable pulling technology with a conventional tool without wall thinning. The component needs to be pulled in two operations, each time a retainer has to be used. The tool for each operation is separate. Technical drawing documentation is processed for the second tool. Due to the calculated force, the ŽĎAS CTH 250 hydraulic press with a nominal force of 2,500 kN was chosen. The economic evaluation shows that the production material cost for one piece is about 42 CZK. The cost of the second stroke tool is 260,000 CZK.
|
|
|
Case-law for Missing VAT in Carousel Frauds
Procházka, Vojtěch ; ČR), (Odvolací finanční ředitelství (referee) ; Brychta, Karel (advisor)
The Master‘s thesis deals with the issue of missing VAT in carousel frauds in case-law of the Court of Justice of the European Union and the Supreme Administrative Court of the Czech Republic. Partial issues are identification of missing VAT and subjects in fraudulant supply chain whose right to deduct input VAT can be denied along with question of sanctional or reparational character of denial of right to deduct input VAT. The thesis contains recommended procedure for tax payers to minimize risks related to deduction of VAT.
|
|
|
Computational Analysis of Electric Car Ride
Procházka, Vojtěch ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
The topic of bachelor thesis is the suspension of electric vehicles and its comparison with conventional cars. The research part describes properties of electric vehicles and their influence on the design. The increase in their total weight due to batteries and chassis solutions is being investigated especially. The next section is focused on electric motors, especially electric in-wheel motors, which represent a significant increase in unsprung mass. The next chapter describes the effect of suspension and its importance in terms of driving comfort and safety. In the computational part, the influence of the increased sprung and unsprung masses, which were defined in the search, is analyzed using the quarter car model in the MATLAB program. These results are evaluated in conclusion.
|
|
|
Návrh a energetická optimalizace dřevostavby rodinného domu
Procházka, Vojtěch
This bachelor thesis is focused to the design of a family house with wooden frame construction in village Babice nad Svitavou, as well as energy optimalization of design. The theoretical text part describes energy assessment used for energy performance evaluation. Practical part of the thesis describes building layout, constructions and technical facilities. The calculation part deals with the energy calculations on the designed building. Final part of the thesis focuses on energy optimalization of the designed project. Technical documentation of the building with technical reports and basic building physics calculations with energy label of the building envelope are attached to this work.
|
|
|
Energy saving study for family house
Procházka, Vojtěch ; Toman, Filip (referee) ; Baláš, Marek (advisor)
This final thesis deals with the design of measures against heat loss of a family house. These losses depend on the quality of the elements that are used to prevent unwanted heat escape. In the first part, the basic characteristics of these elements and a description of heat sources for a family house are mentioned. In the next part of the work, heat losses are calculated for a specific house and measures leading to their reduction are proposed. Finally, an economic evaluation of the proposed changes is carried out.
|
|
|
Case-law for Missing VAT in Carousel Frauds
Procházka, Vojtěch ; ČR), (Odvolací finanční ředitelství (referee) ; Brychta, Karel (advisor)
The Master‘s thesis deals with the issue of missing VAT in carousel frauds in case-law of the Court of Justice of the European Union and the Supreme Administrative Court of the Czech Republic. Partial issues are identification of missing VAT and subjects in fraudulant supply chain whose right to deduct input VAT can be denied along with question of sanctional or reparational character of denial of right to deduct input VAT. The thesis contains recommended procedure for tax payers to minimize risks related to deduction of VAT.
|
|
|
Computational analysis of a car axle arm opening
Procházka, Vojtěch ; Kubík, Petr (referee) ; Petruška, Jindřich (advisor)
This thesis is focused on behavior of control arm opening with bushing pressed in. The tested component is a part of control arm of a car. The parts were tested in tensile and compressive strength. Real experiments were measured by optical system Aramis during the testing to determine deformations of the part. These tests are also modeled by a finite element method using an Abaqus software. In GOM Correlate software is created full-field comparison of deformation results from Aramis and FEA. Based on this comparison computational model is calibrated. Sensitivity analysis is performed at the end of the thesis.
|
guest ::
RSS feed.