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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
121

Technické a vodohospodářské řešení rekonstrukce hráze VD Ivanské jezero na Javornickém potoce / Reconstruction of dam Ivanské jezero

Svatoš, Petr January 2019 (has links)
Water structure Ivanské jezero was built on the Javorník Creek back between 1905-1907. The main purpose of the dam was accumulation of high volumes of water and protection of the territory downstream. After the adjustment for higher flows on the river Kněžna in Rychnov nad Kněžnou, which was completed in 1937, the water structure lost the protective function. On the basis of an assessment made by Povodí Labe in 1993 - due to the low volume of the reservoir there is no flood wave transformation and already while flow rates greater than Q50 pass through dam, it results in overflowing the dam. To this date water structure Ivanské jezero is in very poor condition due to degradation of the binding material in the dam. The goal of the thesis is to propose a procedure for removal of the existing structure and the subsequent construction of the design and construction of a new – gravity, concrete dam. This work will contain technological removal process of current dam and possible usage options for the dam material. In the next step a new structure will be designed in the place of existing dam. After new design is completed there will be hydraulic assessment of the functional objects, hydrology and stability on the dam.
122

Manipulátor pro skládání slévárenských forem / Manipulator for folding molds

Borýsek, Lukáš January 2019 (has links)
The diploma thesis deals with the design of manipulator construction for folding two-part molds. In the thesis, an analysis of the current state of knowledge in the field of handling equipment and industrial robots is generally performed. Subsequently, the work introduces the current issue of handling equipment that is used in foundry. Furthermore, the work deals with the analysis of the manipulator construction, choosing the appropriate solution for the construction of its own handling equipment. Design solution is supported by computational message, 3D model and drawing documentation of selected nodes. The conclusion is devoted to the evaluation of work and practical recommendations.
123

CNC řízení frézky / Milling machine CNC control

Krejčí, Jan January 2021 (has links)
This diploma thesis deals with rebuild of manual drill-mill machine BF20L into CNC mill machine, 3D model of that and eventual control using PLC. All axes are powered by stepper motors, with encoders, connected to control cards and industrial computer from company Beckhoff. For this control is made full switchboard, supplemented by electrical wiring diagram. Program control along with visualization is made in software TwinCAT 3. Drill-mill machine can be controlled manually or automatically by program.
124

3D model vybraného objektu / 3D model of the selected object

Mrůzek, Tomáš January 2021 (has links)
This diploma thesis describes the implementation of a 3D model of two objects using laser scanning. This paper deals with the accuracy evaluation of several data interpretation. The first two methods are the outputs of the results from the FARO SCENE program and other interpretations are the outputs from the TRIMBLE REAL WORKS program. To assess accuracy and veracity, the exact test field of points previously built in the AdMas complex was used. The result of the project is a georeferenced 3D model of two objects with the surrounding environment.
125

Výpočet dynamických sil jističe 250A / Calculation of electrodynamic forces in 250 A circuit breaker

Görig, Michal January 2015 (has links)
This master’s thesis deals with the calculation of electrodynamic forces breaker BD250NE305. Main tasks in this semester project is to study the theoretical analysis of individual parts specified breakers. Processing theoretical analysis of these forces. Creating a 3D model current path and sheets quenching chamber single phase circuit breaker in Autodesk Inventor Professional 2012. Another challenge is the subsequent export the model into the simulation program ANSYS Maxwell. After simulation, the specified conditions must be processed and the results of the present work is to evaluate.
126

Biometrické rozpoznávání 3D modelů obličeje / Biometric Recognition of 3D Faces

Michálek, Martin January 2014 (has links)
This thesis is about biometric 3D face recognition . A general biometric system as well as functioning of biometric system are present . Techniques used in 2D and 3D face recognition are described . Finally , an automatic biometric system for 3D face recognition is proposed and implemeted . This system divide face for areas by position of detected landmarks . Particular areas are compared separately . Final system fusion results from Eigenfaces and ARENA algorithms .
127

Model Stirlingova motoru v PSCAD / Model of Stirling Engine in PSCAD

Gallo, Michal January 2016 (has links)
This dissertation about the Stirling engine deals with the history and formation of the heat engine. At the beginning of this work, fundamental parts and their functions are described, elucidating the principle of operation explained by the thermodynamic cycle and subsequently comparing the ideal and the real Stirling cycle and last but not least provides various modifications whilst describing their differences. The mathematical model of the Stirling engine is processed by Schmidth’s theoretical analysis and thereafter is created in PScad v46. The process of creating a model is shown in one of the chapters of this dissertation. The results were taken into account in the design of 3D models in Inventor Professional by Autodesk. The work concludes with the evaluation of the computational model and its functionality as well as the documentation of the 3D model.
128

Výpočet dynamických sil jističe 630A / Calculation of electrodynamic forces in 630 A circuit breaker

Staněk, Pavel January 2016 (has links)
The aim of this thesis is to simulate the action of electrodynamic forces on current carrying path and a movable contact of the circuit breaker OEZ Modeion BH 630NE. For the calculation there is used the simulation program Ansys Maxwell. The first part is devoted to theoretical analysis of electromagnetic forces on a conductor in a magnetic field. Further I discuss the constructional design of the circuit breaker itself, especially the current path and the contact mechanism. In the next part there is (with using program Autodesk Inventor) created a simplified 3D model of the current path including an arc chamber. With program Ansys Maxwell then there is performed simulation of the acting of forces in each mode. This is magnetostatic and transient analysis for symmetrical and asymmetrical flow of the fault current. In conclusion the results obtained are evaluated and processed in the tabular way.
129

Jednoválcový čtyřdobý motor motocyklu třídy enduro / Single-Cylinder Four-Stroke Engine for an Enduro Motorcycle

Kotiza, Tomáš January 2016 (has links)
Diploma thesis is aimed on construction design of single cylinder four stroke engine. Conception of engine with cylinder capacity 450 cm3 meets the rules of Enduro E2 class and is adapt for application for motorcycle with extremely long swing arm according to the patent owned by Ing. Frantisek Krnavek. In the beginning of this thesis is analysis of engines this category and specific engine layouts in the motorcycles. After is design and simulation of engine parameters from which are created and described 3D models of engine parts. Conclusion is about durability calculation of main bearings.
130

Landschaft und Archäologie im virtuellen 3D-Modell Beispiel „Ethno-Nature Park Uch-Enmek“ (Altai, Russland)

Schmid, Marcel 11 January 2012 (has links)
Im Rahmen dieser Diplomarbeit entstand in Zusammenarbeit des Instituts für Kartographie der Technischen Universität Dresden und Archäologen der Universität Gent in Belgien ein dreidimensionales Landschaftsmodell einer Teilregion des Naturparks „Uch-Enmek“, gelegen in der Republik Altai. Diese Region beinhaltet die wichtigsten und größten bekannten Begräbnisstätten skythischen Ursprungs, für die es gilt, den Bekanntheitsgrad und das Bewusstsein dieses kulturellen Erbes durch diese Arbeit zu steigern. Im Zuge dessen wurden wichtige Geodaten, unter Berücksichtigung der prägenden Geoelemente einer Landschaft, in einem Geoinformationssystem zusammengetragen, um die Ausgrabungsstätten ergänzt und verfeinert und schließlich zu einem digitalen Landschaftsmodell ausgebaut. Die Wandlung zu einem dreidimensionalen Landschaftsmodell durch Hinzunahme von 3D-Objekten, wie Gebäuden oder Bäume, wurde in einer professionellen 3D-Software durchgeführt. Zur Visualisierung des Endproduktes wurden aus dem resultierenden 3D-Modell statische Bilder und eine Animation erstellt. Zukünftig können die Ergebnisse genutzt werden, um einen Internetauftritt des Naturparks zu ermöglichen. / Within the scope of this diploma thesis, a three-dimensional landscape model of a part of a region located in the nature park „Uch-Enmek“ (situated within the Altai Republic), was generated in cooperation with the Institut for Cartography of Dresden University of Technology and archaeologists of the University of Ghent in Belgium. The area of interest contains the most important and well-known burial mounds, that origin back to Scythian history. Aim of the thesis is to increase the degree of popularity and the awareness for this cultural heritage. In this case, important geodata were collected within a geo-informationsystem, with respect to characteristic geoelements of a landscape. The geodata were replenished and improved around the archaeological excavation and built up to a digital landscape model. The conversion to a three-dimensional landscape model by adding three-dimensional objects, like buildings and trees, was executed with the help of a professional 3D-software. To visualize the final product, static images and an animation were generated as results out of the 3D-model. Prospectively, the achievement can be used to establish an internet presentation of the nature park.

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