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Determination of measurement deviations of 3D optical scanner
Dokoupil, Filip ; Ficza, Ildikó (referee) ; Paloušek, David (advisor)
The goal of this bachelor thesis is to determine measurement deviations of the optical system ATOS Triple Scan, when the chalk and titanium coating is applied, by statistical data analysis. In the theoretical part, a short introduction to 3D reconstruction of real objects, distribution of structured light systems according to the pattern structure and existing knowledge about the scanning system accuracy is given. The practical part is based on the experimental measurement the calibration elements with specific chalk and titanium coating. As the result, the measurement uncertainty and the coating thickness is determined.
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Design of adaptive mirror for high power laser applications
Kroutil, Tomáš ; Zatočilová, Aneta (referee) ; Koutný, Daniel (advisor)
Bachelor thesis deals with design and production of the prototype of adaptive mirror for high power lasers. Deformation of mirror is possible by a set of tensile elements and air pressure. The deformation of reflective surface is in tenths of millimeters. The research part is devoted to laser technology with adaptive optics. The design part contains several design variants and optimal solution, which was chosen for realization. Real deformation of reflective surface was evaluated by 3D scanner.
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Modal Analysis of the Blades Row Tied with Z-tie
Valoušek, Tomáš ; Chromek, Lukáš (referee) ; Lošák, Petr (advisor)
This thesis is about modal analysis of the rotor blades row tied with Z-tie. Thesis was solved by finite element system ANSYS. Cyclic symmetry was used in this thesis with the aim of obtain eigen frequency of bladed disc. The next aim of this thesis was to find eigen frequency of the free rotor blades and to compare it with frequency obtained from experiment. 3D model was created by 3D scanner and CAD system CATIA.
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Prototype Part Design Using the Reverse Engineering Technology and Rapid Prototyping
Luňák, Václav ; Sámelová, Vendula (referee) ; Slaný, Martin (advisor)
This Bachelor thesis is dealing with the manufacturing process of a motorcycle turn signal part using the technologies of reverse engineering and rapid prototyping. The thesis contains a brief description of the available technological methods. The following chapters deal with designing the component and its preparation for casting. The component is manufactured using the FDM method. The quality check is performed by the ATOS 3D scanner, which compares the newly manufactured component to the original part. The next step is the preparation of a silicone mold, which is used to cast more parts. Finally, the cost-effectiveness of this method is compared to the method using metal molds.
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Construction and production of 3D optical scanner
Běhůnek, David ; Zouhar, Jan (referee) ; Zemčík, Oskar (advisor)
The diploma thesis is focused on an optical method for 3D scanning. There is selected photogrammetry for creating 3D models. In the practical part, a mechanism for automatic photo capture is designed and manufactured and 3D printed with using a digital camera, Arduino microcontroller and stepper motors. There are proposed two methods of capturing photographs with which digital twins of reference objects are created. The result of the work is a functional 3D scanner. The next are evaluated used methods as well as the production costs and the time required by the operator when creating a digital copy of the object is listed.
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DIY technologies in digital sculpture
Váňa, Dušan ; Lukášová, Helena (referee) ; Sobotka, Jiří (referee) ; Gabriel, Michal (advisor)
This dissertation thesis is focused on the search for the presence of DIY (Do It Yourself) technologies in the practice of digital sculpting, from the beginnings of this progressive way of creation to the present. The work, through three thematic areas, answers the main research questions: What kind of technology is or has the DIY phenomenon been represented in digital sculpture? How have these technologies influenced and are influencing the development and direction of digital sculpture? Within the first thematic area, the presence of the DIY phenomenon in the beginnings of digital creation of a spatial work of art is mapped until the moment of constituting the concept of Digital Sculpture, as a designation of this new way of creation. The second area deals with specific technologies of digital sculpture, in terms of technical tools and their DIY alternatives. The development of these alternative technologies and their influence on the gradual democratization of digital sculpture tools is investigated. The third area examines the creative methods of DIY, which have been integrated into the practice of digital sculpture.
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Shape Measurement of Loaded Tyre
Hlavatý, Jiří ; Vančura, Jan (referee) ; Blaťák, Ondřej (advisor)
This thesis is focused on measuring the shape of loaded tire and finding dependencies between inner tire pressure, load and the influence of these parameters on the resulting shape of the tire. Data for these dependencies were obtained by using a constructed measuring stand and 3D optical technology. Found dependencies describe the change in shape of the tire in specific mathematical functions, and served the creation of a parametric model of the tire. The main finding of this thesis is that the tire is actually behaves according to dependencies described by varying degrees of polynomial function.
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Three-dimensional scanning systems
Weidner, Lukáš ; Koutecký, Tomáš (referee) ; Zatočilová, Aneta (advisor)
This bachelor thesis deals with optical and laser systems which are used in industrial practice.The aim is to give an overview of current systems for 3D digitizing with a focus on laser and optical scanners. This thesis Contains basic division of 3D scanners and overview of methods capturing the third dimension and their characteristics. Furthermore, the work deals with specific optical and laser 3D scanners while providing their description and basic specifications. Finally, the thesis focuses on Areas of application of 3D scanners.
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The effect of physiotherapeutic intervention on the change in thigh muscle volume after LCA surgery.
Ragulová, Michaela ; Pavlů, Dagmar (advisor) ; Angerová, Yvona (referee) ; Řasová, Kamila (referee)
Title: The effect of physiotherapeutic intervention on the change in thigh muscle volume after LCA surgery Objectives: The aim of this work is to evaluate the effect of targeted physiotherapy intervention in patients after anterior cruciate ligament surgery in relation to thigh muscle volume. Methods: Twenty probands participated in the research. The criteria for the selection of the probands were determined as follows: age, first surgery on the lower limbs and bone tendon bone (BTB) surgical approach. Probands were randomly divided into two groups of ten - research and control. The research group completed eight individual physiotherapy sessions, one of which lasted 45 minutes. In the 10th postoperative week, the probands were given additional device rehabilitation - Imoove. In total, this group completed nine physical therapy sessions over 9 weeks. The control group only had group exercise twice a week for 30 minutes. In total, this group completed eight group sessions over a period of 4 weeks. In addition to individual and group therapy, the probands underwent group exercise in the pool five times, magnetotherapy for the knee joint six times, and laser therapy for the scar six times. The following procedures were used to evaluate the effect of the applied therapy: an Academia50 handheld scanner...
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Using machine vision for robot guidance
Gábik, Jaroslav ; Štěpánek, Vojtěch (referee) ; Vetiška, Jan (advisor)
With the development of machine vision technologies, new applications that can increase production, versatility or simplicity of production systems are widely spread. This thesis deals with usage of machine vision for robot guidance. The task consists of creating a technique and its practical realization, where the proposed assumptions are verified. The main objective is to determine 3D position and orientation of a sheet metal part or subassembly of the body-in-white, which is lying within the reach of an industrial robot with respect to its base coordinate system. The proposed method is suitable for several types and dimensions of components, which meet certain requirements. Targeting the component is carried out by scanning significant points on the component with the help of the 3D scanner attached to the robot flange. Afterwards, gained data are processed in a designed programme. The theoretical part is focused on research in the field of machine vision, accuracy of industrial robots, compensation of their errors and manipulation and assembly of the sheet metal parts in automotive. Finally, an evaluation and recommendations for practice are provided.
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