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Surface treatments of internal combustion engines cylinders
Malec, Petr ; Raffai, Peter (referee) ; Maršálek, Ondřej (advisor)
This bachelor thesis is a professional research, which describes the most common methods of surface treatments of modern internal combustion engines cylinders. The work consists of the distribution of the species changes, their use and justification of their application. It also describes the technology of individual surfaces, their coating and finishing operations to achieve the best results of sliding surface.
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Belt conveyor for brick chippings
Přecechtílek, Pavel ; Škopán, Miroslav (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to calculate and design a slant conveyor for the transport of brick rubble. The thesis deals with a description of belt conveyors, their main advantages and basic classification. The thesis also includes design of individual parts, a description of the components and characteristics of the transported material, including technical parameters. The thesis includes functional calculation performed by ISO 5048, 1994, identifying the main dimensions and design of the drive. The thesis also contains tensioning device design and strength calculation of tensioning the drum shaft. The thesis is accompanied by all the necessary technical drawings.
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Unconventional design for internal combustion engines
Šenkýř, Miroslav ; Imriš, Pavel (referee) ; Šplíchal, Miroslav (advisor)
The work is focused on unconventional concepts for internal combustion engines, namely, internal combustion engines of unusual structures. These are the engines that have different shapes of combustion chamber, shapes of shafts and specific output from the conventional concepts. This paper describes an unconventional engines as the Wankel engine and the Nutating engine. The work explains the construction, operating principle, advantages and disadvantages. Due to the continuous improvement of structures of these engines they have the future prospects in the aviation industry.
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Belt conveyor for transport of quartz sand
Pech, Zdeněk ; Škopán, Miroslav (referee) ; Malášek, Jiří (advisor)
The aim of my bachelor thesis is the proposal for the inclined belt conveyor for the transport of quartz sand designed according to certain parameters. The introduction to this thesis is concerned with the use, advantages, disadvantages and dividing of the belt conveyors. Furthermore, there are mentioned the individual parts of the conveyors and their description or their use in general. On the basis of this general characteristics, there are chosen the individual parts of conveyors to solve my concept. These mentioned facts are connected with the functional and strength calculation, the proposal of the conveyor traction, the determination of the chief proportions and the proposal of the mechanical tension belt. To conclude my thesis there are presented the analysis and evaluation of functions of the machinery for different dampness and granulity of sand. The whole bachelor thesis is completed with demanded graphical documentation.
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Engines for Le Mans Series
Herman, Pavel ; Blaťák, Ondřej (referee) ; Svída, David (advisor)
This bachelor´s thesis deals with the overview of development the drive units, which are used by racing cars of Le Mans endurance series, mainly the race 24 hours of Le Mans. In the first part is outlined the general characteristic the series and the race 24 hours of Le Mans itself. There are briefly described the instructions and the most important technological limitations, observed by designers. The second part contains an owerview of racing cars engines, which are interesting from the historical point of view either by their construction or by achieved success. The last part is devoted to the constructional comparison of drive units of present participants the Le Mans series, their description and the important technical specifications.
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Design of reinforced concrete cylindric tank
Svobodová, Barbora ; Bažant, Zdeněk (referee) ; Zich, Miloš (advisor)
The bachelor's thesis deals with static analysis of a reinforced concrete cylindrical tank. The analysis includes load calculation for selected load cases and design of tank wall and bottom reinforcement. Load combinations and load effects were calculated using the Axis VM software. The thesis includes shape drawing documentation, as well as drawing documentation of bottom and wall reinforcement.
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A Collection of Mathematical Problems for the 8th Grade of Basic School
HRANÍČEK, Antonín
This bachelor thesis named A Collection of Mathematical Problems for the 8th Grade of Basic School consists of numerical as well as word problems and it focuses on the topics covered in mathematics in the 8th grade of basic schools. The collection is meant to be used as a practice material. The content is divided into 9 chapters which are further divided into individual subchapters. At the end of each chapter, there are results and solutions for each chapter.
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Breathing Apparatus equipment in the Units of the Fire Rescue Service of the South Bohemia Region
SOKOL, Karel
The Fire Rescue Service of the Czech Republic is one of the fundamental components of the Integrated Rescue System. Its overall development and modern equipment allows for a very effective way to provide assistance in all types of emergencies. The breathing apparatus equipment is one of the many parts of the common personal protective equipment that allows firefighters to remain within even a stifling environment. The aim of this thesis was to make a full analysis of the numbers and the range of age in use of these kinds of breathing apparatuses and cylinders, which belong to the units of the equipment in the Fire Rescue Service of the South Bohemia Region. Furthermore, I have made a comparison between the two basic types of air breathing apparatuses that are being used, in terms of the protection period, which have been provided to the users (carriers). The participants of this inquiry were members of the FRS of the South Bohemia Region, which include the separation of chemical and technical services into the various local departments. I have received the data from twenty different fire stations in total. In the questionnaire which was given, I collected the data from the respondents, according to their age and added the number of different types of breathing apparatus and cylinders and period or time of use to this study. The data was collected during February and March 2010. Hypothesis 1: the number of pieces of the breathing apparatus equipment in the South Bohemia Fire Rescue units is sufficient; this was confirmed. The result has been compared with the numerical data collected from the indicated positions in the current legislation set to 1.7 times of the number of the members serving in one inning. Hypothesis 2: that these breathing apparatuses meet the requirements of all of the current legislation; this has not been confirmed. The result shows a comparison of the technical parameters of the instruments and technical conditions, as reported by the Interior Ministry decree No. 255/1999 Coll. as amended, regarding the technical conditions kind of fire. The results will be used to establish the financial balance sheet and the planned purchases of the pressurized breathing apparatus equipment and the used variations of the composite cylinders.
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