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Cost analysis of building objects
Gregovská, Kateřina ; Zimmermann, Lukáš (referee) ; Výskala, Miloslav (advisor)
The aim of the thesis is to analyse the costs of civil engineering structures in terms of their distribution according to construction or other parts. The first part of the thesis focuses on the cost analysis of sewer lines. The analysis is made on several dozen budgets of real sewer lines, where the technical parameters, economic parameters, parameters on debris generated and costing parameters are compared. From all numerical parameters, the minimum, maximum, average and median values are then evaluated. The next part of the thesis deals with the creation of budgets per 1 mb for excavation in grassed area, road and pavement. The budgets include certain parameters that were found from the previous analysis. The budgets created are then used to determine the change in total cost with changes in excavation depth and pipe diameter. Also, as these parameters change, the labour, the amount of debris removed, backfilling with reused and new soil, and disposal of excavated soil to the landfill are examined. The main purpose is to combine the comparison of all the parameters and find the optimal solutions. In the final stage, the prices of the individual sewer line budgets are compared with the price indicators.
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Methods of Machine Tool Thermal Error Compensation
Hanzal, Jiří ; Hermanský, Dominik (referee) ; Minář, Petr (advisor)
Thermal error caused by the thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. This paper presents an overview of the methods of measurement, regulation and compensation of thermal errors. It also deals with the research of research centers and their projects. At the end of the thesis we are dealing with measuring of temperature deviations on machine tools MCV 754 Quick. For the tested machine tool, a methodical proposal of temperature compensation was designed using the grey neural network model with convolution Integral. This paper aims to give a basic introduction of the whole process of the spindle thermal error compensation.
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Plastic spur gears
Jordán, Jakub ; Dvořáček, Jiří (referee) ; Venclík, Jiří (advisor)
The bachelor work deals with describe to problems plastic gears and give actual state of knowledges in this section. The work deals with material, constuction and calculation plastic gears. Contains most frequent gear failure this gears and developments apply in mechanical engineering.
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The Study of Purchasing with the linkage to Production Processes
Svída, Jaroslav ; Adámek, Pavel (referee) ; Jurová, Marie (advisor)
In this diploma work I have attempted to solve problems about managing manufactoring resources in company used in servicing electro-technical production. Problems about manufactoring resources appeared in a time due to a loss of a significant customer when manufactoring resources have became disfunctional. Manufactoring resources reduction policy has been applied in various ways which have led to a significant reduction of a company’s stock.
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Preparation and characterization of highly filled composite materials for dental applications
Gavroňová, Ivana ; Bystřický, Zdeněk (referee) ; Poláček, Petr (advisor)
Master thesis deals with highly filled particulate composite materials for dental applications. In the practical part, the dimetacrylate matrix was filled with a mixture of particles of different types and different sizes to achieve the maximum possible packing. Moreover, filler content and the influence of filler on composite material was studied. Hydrolytic stability was also tested on composite materials. The methods used to characterize composite materials were bending test, thermogravimetric analysis (TGA), differential scanning photocalorimetry (DPC), dynamic-mechanical analysis (DMA) and scanning electron microscopy (SEM). Curing of the matrix was characterized by the degree of conversion, the heat of polymerization and the polymerization rate. Furthermore the polymerization shrinkage was measured. The glass transition temperature, the dynamic modulus at 40 °C and 100 °C, the modulus of elasticity, the strength, the critical value of the stress factor and the critical energy release rate were found in the tested samples.
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Manipulation with material at storage
Moškoř, Jakub ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
This bachelor thesis deals with concept of storaging of metal sheets. Focusing on differences in metal sheet handling and storaging. Key aspects are effectivness of storaging space and material flow on critical day. There is also literal research in the field of material handling and handling technology as part of this thesis.
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Implementation of the Milk Run System for Production Lines of the Selected Area
Nemec, Matej ; Zlochová, Martina (referee) ; Jurová, Marie (advisor)
Diploma thesis is focused on implementation of logistics system Milk Run for automotive lines in selected manufacturing company, which allows to deliver raw material for production effectively and on time. The theoretical part deals with the logistics principles, which are supporting lean manufacturing. The practical part is focused mainly on description of new supplying process and steps needed for implementation of Milk Run system in the company. The thesis is concluded with evaluation of project’s expected benefits.
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Composite materials used in the manufacture of cars
Rendek, Marek ; Juliš, Martin (referee) ; Němec, Karel (advisor)
Bachelor’s thesis deals with various types of composites used in the spheres of automotive industry. In the first section, it’s focused on the introduction to issues of composite materials, methods of production, their advantages and disadvantages. The second part of thesis focuses on specific applications in the automotive industry. In the final part there is a future evaluation and an overall view of the composite materials in the automotive field.
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