The thesis focuses on the corrosion research of AlCu4Mg1 aluminium alloys of square shape and sheet metal coated in 99.5% aluminium. The theoretical part deals with the characteristics of aluminium, the classification and naming of aluminium alloys and the impact of admixtures on aluminium alloys. In the following chapter a general introduction to metal corrosion, its differentiation according to the type of corrosion attack, mechanisms of corrosion, the impact of corrosive environment, according to the choice of anti-corrosion protection, etc. is given. The main part is devoted to the corrosion of aluminium with a special importance of the impact of admixtures on aluminium alloys, the types of corrosion attack, the impact of corrosive environment as well as of the anti-corrosion protection of aluminium alloys. The corrosion tests in controlled atmosphere are considered in the next chapter, while the last one deals with the evaluation methodology of the process of corrosion. At the beginning of the experimental part all the used samples and materials are introduced. The thesis continues then with an overview and a description of the methods used for experiments. The measurement procedure and the results of the experiments are presented in the following chapter that focuses on the metallographic analysis of the aluminium alloy samples before the experiment and after the corrosion attack. The main part of the chapter deals with the dependence of corrosion speed of the individual aluminium alloy samples on time after being exposed in the climate chamber and the salt fog chamber

This diploma thesis deals with turbochargers with a focus on the ways of their regulation. The main subject is to design CFD simulation for a turbocharger with VNT mechanism at specific positions. Simulation is based on the turbocharger Garrett by Honeywell, for which measurement was realized. Finally torques acting on the vanes are evaluated from the simulation. The means of results improvement are considered at the end of the thesis.

This master thesis deals with the design of stack stackers travel mechanism for height from 10m to 44m. Next it deals with the strength analysis travel unit for one-pillar stacker for hight of pillar 26m. In the first part is done brief introduction to problems of stocking and description basic parts of stack stacker. After that follows structural design, calculation of travel wheel, drive, shaft and bearings. In the second part of thesis is deals travel unit frame, calculation of transport capacity and is done safety concept of stack stackers. An integral part of the thesis is drawing documentation.

This thesis covers the theoretical solution of the compressed air powered vehicle. The first section describes the competition of the compressed air powered vehicles, that is annually held in Hungary, where the idea for such a car design was created. There are also additional descriptions of the construction of the machines from the hungarian competition. In the second section there is a calculation of the chosen vehicle construction, where the main emphases is based on the calculation of the drive of the vehicle. The description of the manufacturing, tests and vehicle presentation follows.

This diploma thesis analyzes the effects of various parameters of vane profile and position of VNT mechanism on the size of aerodynamic force which acts on the vanes and on the position of neutral axis of the vane. A CDF simulation was created to do this analysis, and the results of the simulation were evaluated. Thesis also deals with turbochargers in general and with other methods of their regulation.

In a family house not far from Brno, there is an entryway hole for getting into the space under the floor. The hole is covered by a high weight concrete hatch. For easier manipulation with the hatch an opening mechanism was designed and manufactured. This mechanism had been installed under the hatch and nowadays it works well. This master’s thesis deals with description of main components of the mechanism and their function. Load analysis and stress-strain analysis are the major part of this thesis. At the end of this work the analysis results are commented and some suggestions for further research are proposed.

The aim of this work is to propose a cranktrain of a petrol six-cylinder aircraft engine with the specified parameters. Build dynamic model involved an air reducer and carry out the life-stress analysis important key parts of the crankshaft.

Tato diplomová práce se zabývá návrhem mechanismu řízení letounu TL 4000, určení sil působících na jednotlivé součásti řízení a jejich pevnostní analýzou. V této práci jsou vypracovány všechny tři složky řízení a to tak, aby vyhovovaly stavebnímu předpisu CS 23.

This master's thesis is concerned with the mechanical efficiency of cranktrain contact pairs in a combustion engine. In the introductory part, the fundamental terminology relating to the cranktrain is presented along with the specification of the areas of mechanical losses, greasing modes and types of wear. The following chapters describe the possibilities of eliminating mechanical losses of the cranktrain and the calculation methods that can be utilized to mathematically solve mechanical losses. The practical part includes the proposal of a calculation model and its use in the analysis of the cranktrain of Skoda 1.2 HTP engine. The last part of this thesis comprises modified alternatives of the standard cranktrain focusing on the elimination of mechanical losses. The evaluation of the results is presented in the conclusion of this thesis.

To which extent can local governments in a federal state, which compete with each other, gain some latitude of discretion to draw some additional grants from the common pool of federal funds. How must a federal transfer scheme be designed that tackles common pool fishing and at the same time fulfills the allocative and distributive objectives of the federal government?