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Automatizace linky pro defektoskopii železničních kol
Hubený, Marek ; Matz,, Václav (oponent) ; Pásek, Jan (vedoucí práce)
Tato diplomová práce se zabývá návrhem a realizací řídicího systému pro testovací linku využívající ultrazvukové defektoskopie a magnetické práškové defektoskopie. Testovací linka je určena pro nedestruktivní testování železničních kol s možností detekce a lokalizace povrchových a podpovrchových vad. Práce popisuje uspořádání a princip funkce testovací linky. Na tomto základě je proveden návrh řídicího systému, který řídí jednotlivé procesy v rámci celé testovací linky. Navržený řídicí systém byl realizován v průmyslové aplikaci.
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Mechanical Properties of Microstructural Components of Inorganic Materials
Wasserbauer, Jaromír ; Palou, Martin (oponent) ; Drábik,, Milan (oponent) ; Havlica, Jaromír (vedoucí práce)
The doctoral thesis deals with study of structural and mechanical properties of inorganic materials. Goal is to find the weakest (mechanically) phases and interfaces of material. By affecting these structures it should be possible consequently produce a material with better mechanical properties. Due to the large amount of used methods the basic theory is discussed always in the beginning of relevant chapter. Similarly, due to the considerable amount of results every chapter includes partial conclusions. The work is divided in three parts. The first deals with the introduction of the possibilities of modeling micro-mechanical properties and performing of experiments that allow assessment of the scope of some model. In second part itis performed an overview of current possibilities of indentation tests for measuring mechanical properties of structural components of concrete and the practical managing of methods suitable for use for materials research examined at our faculty. In third part the method of identifying the weakest points in structure of inorganic binders is proposed and validation on the particular material examined at our faculty is performed. The methods used in this doctoral thesis are: calorimetry, ultrasonic testing, uniaxial compression, nanoindentation, correlative microscopy and scanning electron microscopy with energy dispersive spectrometer. Partial results are a complete characterization of cementitious materials, specification of existing knowledge and finding the optimal procedure for characterization. The main result is an innovative approach that leads to a positive effect on the material.
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Automatizace linky pro defektoskopii železničních kol
Hubený, Marek ; Matz,, Václav (oponent) ; Pásek, Jan (vedoucí práce)
Tato diplomová práce se zabývá návrhem a realizací řídicího systému pro testovací linku využívající ultrazvukové defektoskopie a magnetické práškové defektoskopie. Testovací linka je určena pro nedestruktivní testování železničních kol s možností detekce a lokalizace povrchových a podpovrchových vad. Práce popisuje uspořádání a princip funkce testovací linky. Na tomto základě je proveden návrh řídicího systému, který řídí jednotlivé procesy v rámci celé testovací linky. Navržený řídicí systém byl realizován v průmyslové aplikaci.
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Mechanical Properties of Microstructural Components of Inorganic Materials
Wasserbauer, Jaromír ; Palou, Martin (oponent) ; Drábik,, Milan (oponent) ; Havlica, Jaromír (vedoucí práce)
The doctoral thesis deals with study of structural and mechanical properties of inorganic materials. Goal is to find the weakest (mechanically) phases and interfaces of material. By affecting these structures it should be possible consequently produce a material with better mechanical properties. Due to the large amount of used methods the basic theory is discussed always in the beginning of relevant chapter. Similarly, due to the considerable amount of results every chapter includes partial conclusions. The work is divided in three parts. The first deals with the introduction of the possibilities of modeling micro-mechanical properties and performing of experiments that allow assessment of the scope of some model. In second part itis performed an overview of current possibilities of indentation tests for measuring mechanical properties of structural components of concrete and the practical managing of methods suitable for use for materials research examined at our faculty. In third part the method of identifying the weakest points in structure of inorganic binders is proposed and validation on the particular material examined at our faculty is performed. The methods used in this doctoral thesis are: calorimetry, ultrasonic testing, uniaxial compression, nanoindentation, correlative microscopy and scanning electron microscopy with energy dispersive spectrometer. Partial results are a complete characterization of cementitious materials, specification of existing knowledge and finding the optimal procedure for characterization. The main result is an innovative approach that leads to a positive effect on the material.
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