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Formula Student Front Wheel Carrier Design
Černý, Filip ; Porteš, Petr (referee) ; Ramík, Pavel (advisor)
This thesis deals with the design of the front wheel hub and upright of Formula student car. First component is a short search on Formula Student event and comparing diverse structures of upright for use in both racing and road cars. It also includes design of hub and upright in the CAD program and computational model of the upright created in FEM program specifically for stress analysis in selected conditions. It also includes optimization of the overall proposal.
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Condition monitoring of small ball bearings
Šváb, Štěpán ; Pikula, Stanislav (referee) ; Havránek, Zdeněk (advisor)
The aim of this thesis was to build equipment for testing bearing condition analysis during its life. The theory of bearing parameter and diagnostics methodology for their analysis are discussed. Hardware used for device design and data collection. Finally, the course of measurement and software evaluating the end of the test are discussed.
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Types of rolling bearings wear
Kapusta, Juraj ; Košťál, David (referee) ; Zapletal, Tomáš (advisor)
The aim of this bachelor thesis is to classify the rolling bearing wear from the very origin, the course in the operating state and the resulting quality of the component until the complete elimination. The design and subsequent production guarantee the life of the part, when the required working hours work safely. The designer's role in designing a bearing selection for a given bearing, lubrication and load transfer is to take into account all factors that could lead to damage. In practice, the customer's choice of bearing is recommended according to various computational methods that ensure optimal selection of a standardized bearing from the catalog. The individual parts contain values specifying the strength and dynamic properties that the customer can handle. The result will be a survey of several real companies, analysis of their implementation and accessibility of modules to facilitate the selection of the correct bearing. To do this, I try to make the issue of wear and tear accessible, which is related to the prevention of these undesirable effects.
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Vibration of faulty bearing depending on the load
Slaninová, Barbora ; Marcián, Petr (referee) ; Krejsa, Jiří (advisor)
The subject of the presented bachelor thesis is an analysis of a bearing vibration during its failure on inner race with varying load. The work aims to create a model simulating the time course of vibrations in the event of a bearing failure depending on the load and speed of the bearing. The work compares the frequency and time model of the rolling bearing error spectrum. A model of bearing error frequencies was also created, which is supplemented by a force action in the next step. To parameterize the model, data were experimentally measured on a bearing that takes on three possible states. The first bearing has a defect on inner race measuring 0.25 mm, the second bearing 0.5 mm and the third is free of defects. The measurement takes place on a test bed in 135 repetitions. Inventor is used to design the bearing with defect. The measured data are processed and visualized with MATLAB. The measured values show that the rate of vibration is not only dependent on the load and speed, but also the size of the defect.
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Study of bearing noise regarding accuracy of machining
Studýnka, Pavel ; Sabo, Karol (referee) ; Klapka, Milan (advisor)
This bachalor thesis deals with connection between the quality of surface of raceways of a bearing and vibrations in operation. This thesis describes basic geometrical parameters of a bearing that have main influence on its resulting quality and vibrations. It presents methods to evaluate the quality of the raceways surfaces and their connection between them. As a part of the thesis is an experiment, which should prove, what is the connection between the measuring of quality of the surface of raceways and measuring the vibrations of bearings during the process, by the way used in the company KOYO Olomouc. The quality of raceways is evaluated on a measuring device MUK-F 300 and vibrations on IL 100R/2000.
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Centrifugal motor brake for pneumatic compactor
Vít, Jakub ; Kamarýt, Martin (referee) ; Škopán, Miroslav (advisor)
The aim of my thesis is the design of centrifugal brakes to prevent twisting of the combustion engine with pneumatic compactor. In the first part of my thesis I deal with existing and similar systems that prevent over speeding. In the second part I deal with the design of its own centrifugal brake. This includes basic functional, strength, thermal calculation, design of components and fabrication drawings according to the assignment.
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Final machining technology of a special bearing ring using a grinder on the holes
Růžička, Daniel ; Kalivoda, Milan (referee) ; Chladil, Josef (advisor)
The main goal of this thesis is to compare 5 chosen grinding wheels, that vary by the material and structure. The testing is done in the company SLB, spol. s r.o., using a grinder on the holes BDU 80, which is set to 6 different settings of the grinding cycle, defined by the letters A´, A, B, C, D and E. These settings vary by the cutting conditions and enable to compare the tested grinding wheels by 8 measured parameters of the surface quality of the grinded bearing orbits of outer rings of the SLB 84-74 bearings, that are described by the drawing documentation.
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Root cause analysis of scrap during production of bearing rings in a roller bearing company
Studýnka, Pavel ; Marek, Tomáš (referee) ; Marek, Jiří (advisor)
This diploma thesis concerns about measuring of rings of bearings from the input material, throughout machining processes, such as turning, heat treatment, grinding, till finishing operations as honing. Purpose of this thesis is to map all the processes in a roller/needle bearing company, measuring of rings of bearings, evaluating data, propose actions leading to decrease the number of scrap product and technical-economical evaluation of changed processes.
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Footbridge
Smělíková, Petra ; Puchner, Josef (referee) ; Sýkora, Karel (advisor)
The topic of my Bachelor's thesis is a static assessment of a bearing structure of a current footbridge which is also used for cycling. It is placed in Kunovice near Uherské Hradiště. The length of span is 28 meters. Its construction is solved as space framework with through-span. Main beam is truss structure with upper saddle flange. The height of beam in the middle of the span is 2.5 meters and above supports is 1.5 meters. The calculation is done either by hand or using calculation program Scia Engineer 2012.0.
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