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Transtibial prosthesis for recreational swimming
Křemen, Jan ; Mazůrek, Ivan (referee) ; Paloušek, David (advisor)
This thesis deals with the construction of an active transtibial prosthesis for recreational swimming. Its aim is to create a working sample of such a prosthesis. The device will primarily serve the patient to move in water - it will be attached to the stump and it will be driven forward. Secondarily, the prosthesis can be used for walking, in the sense that the patient attaches the prosthesis near to a water surface (pool, lake, ocean) and comes with it to the shore. As part of the design and electronics it will be necessary to determine the characteristics of the human resistance in water depending on speed and to determine the necessary propulsion (thrust) strength of the propeller, which will serve as the driving force. Subsequently there will be formed structural variants and selected the best one. This will become default for design and construction of simplified testing device, which will be tested for static thrust. After verifying the functionality and reliability, the final functional sample will be manufactured and tested too.
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Defect detector using CIS sensor
Komzák, Daniel ; Richter, Miloslav (referee) ; Honec, Peter (advisor)
The diploma thesis deals with the research of CIS sensors, their parameters and market research. It contains a comparison between sensors and line cameras, which are used for similar purposes, therefore in this case for scanning the packaging material. The diploma thesis contains the described construction of the device, including the assembly of components and the design of boards. The work describes in detail the image processing from the CIS sensor and various image preprocessing. There is also described method of defect detection, including their distribution and individual approach to each type of defect. The thesis contains a description of the GUI, including its functions and connection to the application dealing with image processing.
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The redesign of the compressor for electromotor driving
Mikulka, Vít ; Venclík, Jiří (referee) ; Mazůrek, Ivan (advisor)
This bachelor thesis deals with redesign of the compressor for electromotor driving. First part focuses on the principle of compressors, their development and division. The next part describes a compressor MK 100 produced by Benda kompresory Ltd. company. The technical solution of its redesign for 2,2kW electromotor propulsion with maintaining a rotation speed mode of original Honda engine is explained in the last part. This compressor should be used in its redesign version at FME BUT in Brno.
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Reusable launcher flight mission
Metelka, Dominik ; Daněk, Vladimír (referee) ; Zikmund, Pavel (advisor)
Tato práce je rozdělena do dvou hlavních částí, které jsou také hlavní cíle. Cílem první části je popis mise vícenásobně použitelného prvního stupně nosné rakety. V této části je nejdříve přiblíženo téma znovupoužitelných kosmických systémů a jejich vývoj do současné doby. Hlavně jsou však v této části popsány operačně používané vícenásobně použitelné nosné rakety, kde u každé z nich je poté popsána jejich letecká mise. Dále jsou zmíněny některé důležité nosné rakety ve vývoji a také jaké jsou způsoby návratu prvního stupně. Druhá část je praktická a cílem je návrh mise návratu prvního stupně nosné rakety na zemi. Pro výpočty byly zvoleny parametry podle současné rakety Falcon 9, ze kterých byla analyticky vypočtena finální rychlost a výška, ve které se první stupeň oddělí od zbytku rakety. Pro návrat a celkový let byl pomocí programu MATLAB napsán skript, který vypočítal a vykreslil potřebné parametry a charakteristiky. Díky tomu bylo také zjištěno, v jaké výšce bude potřeba znovu zažehnout motory, aby první stupeň bezpečně přistál na zemi.
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Historical development of rocket engines
Šima, Dávid ; Dubnický, Lukáš (referee) ; Petrásek, Miloslav (advisor)
This bachelor´s thesis is dealing with the historic development of rocket engines and their use on rocket carriers. The work is divided into eight parts. The first part describes the principle of operation of reactive motion and derivation of the Ciolkovskij equation. The second part describes historical development from ancient China to the period before World War II. The fourth part describes the Second World War and especially the missile development in Germany during the war. The fifth part describes mainly rocket engines use in space research of the USA, Russia, Japan, the European Space Agency, India and China. The sixth part describes rocket engines of private companies which were founded in the early 21. century. The seventh part describes aerospike rocket engines and the last part describes physical engines.
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Evaluation of wheelchair adjustments and their impact on proper propulsion pattern upper extremities and sitting posture in patients with spinal cord lesions
Dáňová, Petra ; Pfeiffer, Jan (advisor) ; Neuwirthová, Svatava (referee)
Title: Evaluation of wheelchair adjustments and their impact on proper propulsion pattern upper extremities and sitting posture in patients with spinal cord lesions. Objectives: The objective of this work was to evaluate the adjustments of wheelchair and to determine their impact on the work of the upper limbs and posture while sitting. This work was done on a group of patients with spinal lesions with their own wheelchairs. Another objective was to assess how education of proper propulsion pattern and form and type of a grip of handrim affects the correct propulsion pattern. Methods: In the group of 26 patients with spinal cord injuries in different levels of the spinal cord, I tested the adjusments of wheelchair, in particular the centre of gravity and maximum seat height from the ground. I also investigated what education on correct propulsion pattern the patients received, and observed any home-made adjustments to handrim, as well as patients' techniques of handrim grip. Finally, I examined how the subjects drove his/her wheelchair. During all the tests, I recorded video and photo documentation. The results were statistically evaluated using the Fisher test. Results: Despite the fact that only a small group was investigated, I showed the effect of wheelchair seatings on the correct posture. I...
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Historical development of rocket engines
Šima, Dávid ; Dubnický, Lukáš (referee) ; Petrásek, Miloslav (advisor)
This bachelor´s thesis is dealing with the historic development of rocket engines and their use on rocket carriers. The work is divided into eight parts. The first part describes the principle of operation of reactive motion and derivation of the Ciolkovskij equation. The second part describes historical development from ancient China to the period before World War II. The fourth part describes the Second World War and especially the missile development in Germany during the war. The fifth part describes mainly rocket engines use in space research of the USA, Russia, Japan, the European Space Agency, India and China. The sixth part describes rocket engines of private companies which were founded in the early 21. century. The seventh part describes aerospike rocket engines and the last part describes physical engines.
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Reusable launcher flight mission
Metelka, Dominik ; Daněk, Vladimír (referee) ; Zikmund, Pavel (advisor)
Tato práce je rozdělena do dvou hlavních částí, které jsou také hlavní cíle. Cílem první části je popis mise vícenásobně použitelného prvního stupně nosné rakety. V této části je nejdříve přiblíženo téma znovupoužitelných kosmických systémů a jejich vývoj do současné doby. Hlavně jsou však v této části popsány operačně používané vícenásobně použitelné nosné rakety, kde u každé z nich je poté popsána jejich letecká mise. Dále jsou zmíněny některé důležité nosné rakety ve vývoji a také jaké jsou způsoby návratu prvního stupně. Druhá část je praktická a cílem je návrh mise návratu prvního stupně nosné rakety na zemi. Pro výpočty byly zvoleny parametry podle současné rakety Falcon 9, ze kterých byla analyticky vypočtena finální rychlost a výška, ve které se první stupeň oddělí od zbytku rakety. Pro návrat a celkový let byl pomocí programu MATLAB napsán skript, který vypočítal a vykreslil potřebné parametry a charakteristiky. Díky tomu bylo také zjištěno, v jaké výšce bude potřeba znovu zažehnout motory, aby první stupeň bezpečně přistál na zemi.
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Defect detector using CIS sensor
Komzák, Daniel ; Richter, Miloslav (referee) ; Honec, Peter (advisor)
The diploma thesis deals with the research of CIS sensors, their parameters and market research. It contains a comparison between sensors and line cameras, which are used for similar purposes, therefore in this case for scanning the packaging material. The diploma thesis contains the described construction of the device, including the assembly of components and the design of boards. The work describes in detail the image processing from the CIS sensor and various image preprocessing. There is also described method of defect detection, including their distribution and individual approach to each type of defect. The thesis contains a description of the GUI, including its functions and connection to the application dealing with image processing.
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